A vehicle body fixing device for vehicle testing

Abstract

The utility model provides a kind of car body fixing device for automobile test, it is related to automobile test technical field, and it includes: test table, the surface of test table top is provided with lifting mechanism, the lifting mechanism includes support assembly;The support assembly includes connecting shaft, the inside of connecting shaft is provided with connecting component, the connecting component includes connecting rod, the both sides of connecting rod bottom end are provided with connecting plate, the both sides of connecting plate are provided with rotating block, the bottom end of rotating block is dug with square recess, the inside of groove is provided with fixed rod, the end of rotating block bottom away from groove is provided with rotating shaft, the bottom end of connecting rod is provided with spring, the end of spring away from connecting rod is provided with connecting block two.The utility model provides the spring mechanism of connecting rod bottom end, provides sustained buffer structure in the automobile body lifting process, reduces the damage to automobile chassis.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to a vehicle body fixing device for automotive testing. Background Technology

[0002] During the research, development, certification, and production of automobiles, automotive testing equipment is required to test the vehicles to ensure their safe use. This includes tests such as vibration testing, braking testing, fatigue durability testing, and emissions testing. During testing, it is essential to ensure that the vehicle body is stably, reliably, and securely fixed, which is a prerequisite for obtaining accurate test data and also a foundation for ensuring the safety of testing equipment and personnel.

[0003] Different tests require different methods of fixing the car body. When testing the car body, a lifting mechanism is needed to support and fix the car body from the bottom, so that the car body is off the ground and the chassis is fully exposed, which facilitates dynamic or static testing of system components such as suspension, transmission, steering, exhaust and fuel lines.

[0004] However, existing vehicle body fixing devices lack effective buffer structures when lifting, and often directly contact rigid supports, causing local deformation or surface damage to the vehicle chassis. During dynamic testing, the vehicle body is continuously subjected to impacts or vibrations, which traditional rigid supports cannot absorb or mitigate, thus affecting the authenticity of the test data. In addition, the clamping and fixing of the vehicle body is usually manually adjusted during use, which reduces work efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a vehicle body fixing device for automobile testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle body fixing device for automobile testing, comprising: a test platform, wherein a lifting mechanism is provided on the top surface of the test platform, the lifting mechanism including a support assembly; the support assembly including a connecting shaft, the connecting shaft being a hollow cylindrical structure, a connecting assembly being provided inside the connecting shaft, the connecting assembly including a connecting rod, connecting plates being provided on both sides of the bottom end of the connecting rod, rotating blocks being provided on both sides of the connecting plates, a square groove being chiseled at the bottom end of the rotating block, grooves being chiseled at both ends of the bottom of the rotating block, a fixing rod being provided inside the groove, a fixing shaft being provided on the outside of both ends of the fixing rod, a rotating shaft being provided at the bottom end of the rotating block away from the groove, a spring being provided at the bottom end of the connecting rod, and a connecting block being provided at the end of the spring away from the connecting rod.

[0007] In a preferred embodiment, the lifting mechanism includes a lifting component, which includes a sliding component. The bottom of the sliding component is provided with a connecting block, and the interior of the connecting block is provided with a support plate. Two hydraulic rods are equidistantly arranged at the bottom of the support plate. The sliding component includes a sliding plate, and slide rails are provided on both sides of the top of the sliding plate. Seven threaded grooves are equidistantly arranged on one side of the sliding plate.

[0008] In a preferred embodiment, the bottom of the slide rail is fixedly connected to the top of the slide plate, the bottom side of the slide plate is fixedly connected to one side of the connecting block, the inside of the connecting block is fixedly connected to the outside of the support plate, and the bottom of the support plate is fixedly connected to one end of the hydraulic rod.

[0009] In a preferred embodiment, the bottom end of the connecting shaft is fixedly connected to one side of the interior of the connecting block two, the interior of the connecting shaft is slidably connected to the exterior of the connecting rod, the two sides of the bottom end of the connecting rod are fixedly connected to one end of the connecting plate, the interior of the end of the connecting plate away from the connecting rod is fixedly connected to the exterior of the fixing rod, and the exterior of both ends of the fixing rod is fixedly connected to the interior of the fixing shaft.

[0010] In a preferred embodiment, the rotating block is rotatably connected to the outside of the fixed rod via a groove, and the end of the rotating block away from the groove is rotatably connected to the outside of the rotating shaft.

[0011] In a preferred embodiment, one end of the connecting rod is fixedly connected to one end of the spring, the end of the spring away from the connecting rod is fixedly connected to one side inside the connecting block two, and the bottom of the support assembly is slidably connected to one side of the sliding assembly.

[0012] In a preferred embodiment, a bolt is provided on one side of one end of the connecting block two, and one end of the connecting block two is connected to the external thread of the bolt one, while the external thread of the bolt one is connected to the internal thread of one side of the sliding plate.

[0013] In a preferred embodiment, bolts are provided at both ends of both sides of the test bench, and the external of the bolts are connected to the internal threads of the test bench.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention utilizes a spring mechanism at the bottom of the connecting rod to provide a continuous buffer structure during the lifting of the vehicle body, preventing the vehicle chassis from being directly lifted rigidly and thus reducing damage to the chassis. In dynamic testing, it reduces the impact on test data. By pressing down the connecting rod, the rotating block rotates through the rotating rod, fixing the rotating block to the curved surface of the vehicle chassis, forming an adaptive and stable clamping structure that provides reliable stability and safety. The arc-shaped support plate evenly distributes vertical pressure, reducing deformation of the support plate and enhancing bending resistance and load-bearing capacity. Attached Figure Description

[0016] Figure 1 A schematic diagram of the test bench structure for a vehicle body fixing device for automobile testing provided by this utility model.

[0017] Figure 2 A schematic diagram of the lifting mechanism of a vehicle body fixing device for automobile testing provided by this utility model.

[0018] Figure 3 A schematic diagram of the lifting component structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0019] Figure 4 A schematic diagram of the sliding component structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0020] Figure 5 A schematic diagram of the support component structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0021] Figure 6 A schematic diagram of the support component structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0022] Figure 7 A schematic diagram of the connecting component structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0023] Figure 8 This utility model provides a schematic diagram of the connecting components and rotating block structure of a vehicle body fixing device for automobile testing.

[0024] Figure 9 This utility model provides a schematic diagram of the connecting components and rotating block structure of a vehicle body fixing device for automobile testing.

[0025] Figure 10 A schematic diagram of the rotating block structure of a vehicle body fixing device for automobile testing provided by this utility model.

[0026] Figure 11This utility model provides a schematic diagram of the bolt structure of a vehicle body fixing device for automobile testing.

[0027] Legend:

[0028] 1. Test stand; 2. Lifting mechanism; 3. Support components;

[0029] 21. Lifting assembly; 22. Hydraulic rod;

[0030] 211. Support plate; 212. Connecting block one; 213. Sliding assembly; 2131. Slide rail; 2132. Sliding plate;

[0031] 31. Connecting shaft; 32. Connecting assembly; 321. Connecting rod; 322. Connecting plate; 323. Fixing rod; 324. Fixing shaft; 33. Rotating block; 34. Rotating shaft; 35. Spring; 36. Connecting block two; 37. Bolt one;

[0032] 4. Bolt 2. Detailed Implementation

[0033] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] like Figures 1-3 , Figures 5-11 As shown, this utility model provides a technical solution: a vehicle body fixing device for automobile testing, including: a test bench 1, a lifting mechanism 2 is provided on the top surface of the test bench 1, the lifting mechanism 2 includes a support component 3; the support component 3 includes a connecting shaft 31, the connecting shaft 31 is a hollow cylindrical structure, a connecting component 32 is provided inside the connecting shaft 31, the connecting component 32 includes a connecting rod 321, a connecting plate 322 is provided on both sides of the bottom end of the connecting rod 321, a rotating block 33 is provided on both sides of the connecting plate 322, a square groove is chiseled at the bottom end of the rotating block 33, a groove 331 is chiseled at both ends of the bottom of the rotating block 33, a fixing rod 323 is provided inside the groove 331, a fixing shaft 324 is provided on the outside of both ends of the fixing rod 323, a rotating shaft 34 is provided at the bottom end of the rotating block 33 away from the groove 331, a spring 35 is provided at the bottom end of the connecting rod 321, and a connecting block 36 is provided at the end of the spring 35 away from the connecting rod 321.

[0036] In this embodiment, the lifting mechanism 2 set on the top of the test platform 1, the test platform 1 is made of high-strength steel, and the test platform 1 is fixed to the ground by the internal thread connection of the bolt 2 4; the present invention supports the car body by the support component 3, and the hydraulic rod 22 allows the support component 3 to be adjusted up and down by the extension and retraction of the hydraulic rod 22, thereby achieving fixed support and height adjustment of the car body during testing; the hollow cylindrical structure of the connecting shaft 31 allows the connecting component 32 to slide up and down inside the connecting shaft 31, and the elastic deformation of the spring 35 provides support when the connecting rod 321 slides up and down. Provides elastic buffering. When the connecting rod 321 slides downward, it drives the connecting plates 322 on both sides of its bottom end to move downward, causing the fixed rod 323 to drive the rotating block 33 to rotate around the rotating shaft 34. The rotating block 33 is rotatably connected to the fixed rod 323 through the groove 331, realizing adaptive adjustment of the angle of the rotating block 33, thereby achieving chassis surface fit. The fixed shafts 324 at both ends of the fixed rod 323 and the connecting block 36 fix the rotating shaft 34, so that the rotating block 33 provides a stable rotation fulcrum when rotating. The connecting block 36 fixes the spring 35 to the connecting shaft 31, providing a stable support structure when supporting the car body.

[0037] Example 2

[0038] like Figures 1-4 As shown, the lifting mechanism 2 includes a lifting component 21, which includes a sliding component 213. A connecting block 212 is provided at the bottom of the sliding component 213, and a support plate 211 is provided inside the connecting block 212. Two hydraulic rods 22 are equidistantly arranged at the bottom of the support plate 211. The sliding component 213 includes a sliding plate 2132, and slide rails 2131 are provided on both sides of the top of the sliding plate 2132. Seven threaded grooves are equidistantly arranged on one side of the sliding plate 2132. The bottom of the slide rail 2131 is fixedly connected to the top of the sliding plate 2132, the bottom side of the sliding plate 2132 is fixedly connected to one side of the connecting block 212, the inside of the connecting block 212 is fixedly connected to the outside of the support plate 211, and the bottom of the support plate 211 is fixedly connected to one end of the hydraulic rod 22.

[0039] In this embodiment, the sliding connection design between the bottom of the support component 3 and the sliding component 213 allows for adjustment according to different chassis structures of the vehicle, thereby providing a more stable fixed support structure. The slide rail 2131 on the top of the sliding plate 2132 allows the connecting block 36 to slide inside the slide rail 2131, enabling the support component 3 to slide on the sliding component 213 and thus adjust the support position. The arc-shaped design of the support plate 211 ensures that the vertical pressure on its surface is evenly distributed to the support points at both ends, improving the bending resistance and load-bearing capacity of the lifting structure. During the lifting process of the hydraulic rod 22, it effectively resists the deformation of the support plate 211. After adjusting the support component 3 to the appropriate position, the bolt 37 on the connecting block 36 allows for a threaded connection between the bolt 37 and the sliding plate 2132, thus limiting the support component 3 and improving stability during lifting.

[0040] Working principle:

[0041] like Figures 1-11 As shown, when a car test is required, the car to be tested is moved onto the test bench 1. After the vehicle is parked in a suitable position, firstly, bolt 37 is rotated to disengage it from the threaded groove on the sliding plate 2132, releasing the fixation of the support component 3. This allows the support component 3 to slide inside the lifting component 21. Then, the support component 3 is slid, allowing it to slide inside the slide rail 2131. It is adjusted to the curved surface of the car chassis and fixed by bolt 37, which engages with the threaded groove on the sliding plate 2132, thus adjusting and fixing the support component 3. At this time, the hydraulic rod 22 is activated, pushing the lifting mechanism 2 upward, thereby allowing the support component 3 to support the car chassis via the support plate 211. The vehicle moves upward, and the support plate 211 is fixedly connected to the sliding component 213 via the connecting block 212. The connecting rod 321 lifts the curved surface of the vehicle chassis, and the spring 35 provides flexible support and lifting for the vehicle body. During the test, the spring 35 provides continuous cushioning for the vehicle body to avoid damage caused by continuous impact. While the connecting rod 321 moves, the rotating block 33 presses down on the groove 331 via the connecting component 32, and performs a compound movement inside the groove 331 via the fixing rod 323, causing the rotating block 33 to rotate around the rotating shaft 34. This clamps and fixes the curved surface of the vehicle chassis, thereby ensuring the stability of the lifting. The fixing shafts 324 at both ends of the fixing rod 323 prevent the rotating block 33 from shifting during rotation.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vehicle body fixing device for automobile testing, comprising: A test bench (1), characterized in that a lifting mechanism (2) is provided on the top surface of the test bench (1), and the lifting mechanism (2) includes a support component (3); The support component (3) includes a connecting shaft (31), which is a hollow cylindrical structure. A connecting component (32) is disposed inside the connecting shaft (31). The connecting component (32) includes a connecting rod (321). Connecting plates (322) are disposed on both sides of the bottom end of the connecting rod (321). Rotating blocks (33) are disposed on both sides of the connecting plates (322). A square groove is carved at the bottom end of each rotating block (33). 33) Grooves (331) are cut at both ends of the bottom. A fixing rod (323) is installed inside the groove (331). A fixing shaft (324) is installed on the outside of both ends of the fixing rod (323). A rotating shaft (34) is installed at the bottom of the rotating block (33) away from the groove (331). A spring (35) is installed at the bottom of the connecting rod (321). A connecting block two (36) is installed at the end of the spring (35) away from the connecting rod (321).

2. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: The lifting mechanism (2) includes a lifting component (21), the lifting component (21) includes a sliding component (213), the bottom of the sliding component (213) is provided with a connecting block (212), the inside of the connecting block (212) is provided with a support plate (211), and the bottom of the support plate (211) is provided with two hydraulic rods (22) at equal intervals; The sliding assembly (213) includes a sliding plate (2132), and slide rails (2131) are provided on both sides of the top of the sliding plate (2132). Seven threaded grooves are provided at equal intervals on one side of the sliding plate (2132).

3. The vehicle body fixing device for automobile testing according to claim 2, characterized in that: The bottom of the slide rail (2131) is fixedly connected to the top of the sliding plate (2132), the bottom side of the sliding plate (2132) is fixedly connected to one side of the connecting block (212), the inside of the connecting block (212) is fixedly connected to the outside of the support plate (211), and the bottom of the support plate (211) is fixedly connected to one end of the hydraulic rod (22).

4. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: The bottom end of the connecting shaft (31) is fixedly connected to one side of the inside of the connecting block two (36). The inside of the connecting shaft (31) is slidably connected to the outside of the connecting rod (321). The two sides of the bottom end of the connecting rod (321) are fixedly connected to one end of the connecting plate (322). The inside of the end of the connecting plate (322) away from the connecting rod (321) is fixedly connected to the outside of the fixing rod (323). The outside of both ends of the fixing rod (323) is fixedly connected to the inside of the fixing shaft (324).

5. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: The rotating block (33) is rotatably connected to the outside of the fixed rod (323) through the groove (331), and the end of the rotating block (33) away from the groove (331) is rotatably connected to the outside of the rotating shaft (34).

6. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: One end of the connecting rod (321) is fixedly connected to one end of the spring (35), the end of the spring (35) away from the connecting rod (321) is fixedly connected to one side of the inside of the connecting block (36), and the bottom of the support assembly (3) is slidably connected to one side of the sliding assembly (213).

7. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: One end of the connecting block 2 (36) is provided with a bolt 1 (37), one end of the connecting block 2 (36) is connected to the external thread of the bolt 1 (37), and the external thread of the bolt 1 (37) is connected to the internal thread of the sliding plate (2132).

8. The vehicle body fixing device for automobile testing according to claim 1, characterized in that: Bolts 2 (4) are provided at both ends of both sides of the test bench (1), and the outside of the bolts 2 (4) is connected to the inside of the test bench (1) by threads.

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