Welding platform for automobile simulation collision test

Abstract

The utility model provides a welding platform for an automobile simulation collision test, which comprises a test pulley, the upper surface of the test pulley is provided with an automobile body welding platform, and the inner side wall of the test pulley is symmetrically and fixedly connected with four first hexagon nuts; according to the utility model, the vehicle body welding platform is installed and fixed on the testing tackle by using the platform fixing bolt and the first hexagonal nut, and then the white vehicle body can be fixed on the vehicle body welding platform by directly using a welding mode, so that the operation mode during installation is simplified, the installation difficulty is reduced, and the installation efficiency is improved. Compared with a metal base with matrix holes, the vehicle body welding platform is lower in use cost; the vehicle body welding platform is rotated to cooperate with the positioning mechanism for positioning, and the angle between the test pulley and the vehicle body welding platform is adjusted according to actual requirements, so that collision test requirements of different angles during a collision test can be met, a white vehicle body does not need to be repeatedly disassembled and assembled, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a welding platform, specifically a welding platform for automobile simulated collision testing, belonging to the field of automobile simulated collision technology. Background Technology

[0002] Automotive crash testing is a testing method that uses simulation technology to simulate the process of a car collision. The purpose of this testing is to improve the safety of vehicles during a collision, ensuring occupant survival space, mitigating impact, and preventing fires. Through simulated crash tests, different collision scenarios can be evaluated, such as frontal collisions, side collisions, rear-end collisions, and rollovers. These tests help assess the crash safety performance of automotive products.

[0003] Welding platforms are one of the important structures used in automobile simulated crash tests. They are mainly used to install and fix the body-in-white that needs to be tested, ensuring its stability during the test.

[0004] Patent CN215448465U discloses a sliding platform collision testing device that can be used to replace a car body. This device allows for adjustment of the mounting positions of various components on the adapter plate according to actual conditions, verifying the performance of relevant safety components when installed in different positions. This achieves the effect of saving development costs and shortening the development cycle. However, its mounting platform structure is the same as the traditional structure, using a metal base with matrix holes, specifically as follows... Figure 7 As shown, the black part is the trolley, and the gray part is the metal base with matrix holes. This metal base is not only expensive to use, but also requires welding a matching connector to the white car body before use. Then, the white car body is fixed to the metal base using the connector. This is not only cumbersome, but the connector is also prone to deformation during the welding process, leading to installation difficulties or even failure and repair. Therefore, a welding platform for automobile simulated collision test is proposed. Utility Model Content

[0005] In view of this, the present invention provides a welding platform for automobile simulated crash testing to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: A welding platform for automobile simulated collision test includes a test trolley. The upper surface of the test trolley is provided with a car body welding platform. Four first hexagonal nuts are symmetrically fixedly connected to the inner sidewall of the test trolley. Four platform fixing bolts are slidably connected to the inner sidewall of the four car body welding platforms. The platform fixing bolts are threadedly connected to the first hexagonal nuts. A positioning mechanism is installed between the middle part of the car body welding platform and the car body welding platform. Four auxiliary welding mechanisms are symmetrically installed on the upper surface of the car body welding platform.

[0007] The positioning mechanism is used to position the angle between the test trolley and the vehicle body welding platform.

[0008] More preferably, the positioning mechanism includes a central positioning post, a through hole, two top posts, two springs, and several positioning holes;

[0009] The central positioning post is fixedly connected to the middle of the upper surface of the test trolley, the through hole is opened in the middle of the upper surface of the vehicle body welding platform, the inner sidewall of the through hole is slidably connected to the outer sidewall of the central positioning post, and a plurality of positioning holes are opened in the middle of the outer sidewall of the central positioning post.

[0010] More preferably, the outer walls of the two top pillars are slidably connected to the inner wall of the vehicle body welding platform, one end of each of the two springs is fixedly connected to one end of the two top pillars, and the other end of each of the two springs is fixedly connected to the inner wall of the vehicle body welding platform. The outer walls of the top pillars are slidably connected to the inner wall of the positioning hole.

[0011] More preferably, each of the four auxiliary welding mechanisms includes a second hexagonal nut, a threaded rod, a threaded sleeve, and a welding plate;

[0012] The second hexagonal nut is fixedly connected to the upper surface of the vehicle body welding platform, the bottom of the outer side wall of the threaded rod is threadedly connected to the inner side wall of the second hexagonal nut, the threaded sleeve is threadedly connected to the top of the outer side wall of the threaded rod, and the welding plate is fixedly connected to the top of the threaded sleeve.

[0013] More preferably, the outer side wall of the vehicle body welding platform is symmetrically fixedly connected with four lifting rings.

[0014] More preferably, the vehicle body welding platform adopts a rectangular steel frame structure, which is symmetrical in all directions.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model uses platform fixing bolts and a first hexagonal nut to install and fix the body welding platform on the test trolley. Then, the body-in-white can be directly fixed to the body welding platform by welding, which simplifies the installation operation and reduces the installation difficulty. Moreover, the body welding platform has a lower cost compared with a metal base with matrix holes.

[0017] Second, this utility model uses a rotating body welding platform in conjunction with a positioning mechanism for positioning. The angle between the test trolley and the body welding platform can be adjusted according to actual needs to meet the different angles required during collision testing, without having to repeatedly disassemble and reassemble the body-in-white, thus improving testing efficiency. Furthermore, an auxiliary welding mechanism can be used to assist the body welding platform in strengthening the fixation effect on the body-in-white.

[0018] The above overview is for illustrative purposes only and is not intended to limit the scope of the invention in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention from a first-view perspective;

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of area A structure;

[0023] Figure 4 This is a cross-sectional view of the present invention from a second perspective;

[0024] Figure 5 This is an axonometric view of the vehicle body welding platform of this utility model;

[0025] Figure 6 This is a schematic diagram showing the angle adjustment between the test trolley and the vehicle body welding platform of this utility model;

[0026] Figure 7 This is a schematic diagram of an existing metal base with a matrix of holes.

[0027] Reference numerals: 1. Test trolley; 2. Body welding platform; 3. Platform fixing bolt; 4. First hexagonal nut; 5. Positioning mechanism; 6. Auxiliary welding mechanism; 501. Central positioning post; 502. Through hole; 503. Top post; 504. Spring; 505. Positioning hole; 601. Second hexagonal nut; 602. Threaded rod; 603. Threaded sleeve; 604. Welding plate; 71. Lifting ring. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] like Figures 1-6 As shown, this utility model embodiment provides a welding platform for automobile simulated collision test, including a test trolley 1, a body welding platform 2 on the upper surface of the test trolley 1, four first hexagonal nuts 4 symmetrically fixedly connected to the inner side wall of the test trolley 1, four platform fixing bolts 3 slidably connected to the inner side wall of each of the four body welding platforms 2, the platform fixing bolts 3 being threadedly connected to the first hexagonal nuts 4, a positioning mechanism 5 installed between the middle of the body welding platform 2 and the body welding platform 2, four auxiliary welding mechanisms 6 symmetrically installed on the upper surface of the body welding platform 2, four lifting rings 71 symmetrically fixedly connected to the outer side wall of the body welding platform 2, and the body welding platform 2 adopts a rectangular steel frame structure, which is symmetrical in all directions.

[0032] The positioning mechanism 5 is used to position the angle between the test trolley 1 and the body welding platform 2.

[0033] In one embodiment, the positioning mechanism 5 includes a central positioning post 501, a through hole 502, two top posts 503, two springs 504, and a plurality of positioning holes 505.

[0034] Among them, the central positioning post 501 is fixedly connected to the middle of the upper surface of the test trolley 1, the through hole 502 is opened in the middle of the upper surface of the vehicle body welding platform 2, the inner side wall of the through hole 502 is slidably connected to the outer side wall of the central positioning post 501, and several positioning holes 505 are all opened in the middle of the outer side wall of the central positioning post 501.

[0035] The outer walls of the two top pillars 503 are slidably connected to the inner wall of the vehicle body welding platform 2. One end of each of the two springs 504 is fixedly connected to one end of the two top pillars 503, and the other end of each of the two springs 504 is fixedly connected to the inner wall of the vehicle body welding platform 2. The outer walls of the top pillars 503 are slidably connected to the inner wall of the positioning hole 505.

[0036] The test trolley 1 and the vehicle body welding platform 2 are positioned by the central positioning post 501 in conjunction with the through hole 502. When the central positioning post 501 slides into the through hole 502, the outer wall of the central positioning post 501 is used to squeeze one end of the top post 503, so that the spring 504 is compressed under the pressure. When the positioning hole 505 is located at one end of the top post 503, the compressed spring 504 is used to push the top post 503 into the positioning hole 505.

[0037] In one embodiment, each of the four auxiliary welding mechanisms 6 includes a second hexagonal nut 601, a threaded rod 602, a threaded sleeve 603, and a welding plate 604.

[0038] The second hexagonal nut 601 is fixedly connected to the upper surface of the vehicle body welding platform 2, the bottom of the outer side wall of the threaded rod 602 is threadedly connected to the inner side wall of the second hexagonal nut 601, the threaded sleeve 603 is threadedly connected to the top of the outer side wall of the threaded rod 602, and the welding plate 604 is fixedly connected to the top of the threaded sleeve 603.

[0039] The threaded rod 602 is connected to the second hexagonal nut 601 by rotating the threaded rod, and then the threaded sleeve 603 is rotated to drive the welding plate 604 to fit against the bottom of the body-in-white by rotating the thread.

[0040] In operation, this invention first moves the vehicle body welding platform 2 onto the test trolley 1 using a lifting ring 71. Then, the test trolley 1 and the vehicle body welding platform 2 are positioned using a central positioning post 501 in conjunction with a through hole 502. When the central positioning post 501 slides into the through hole 502, the outer wall of the central positioning post 501 presses against one end of the top post 503, causing the spring 504 to compress under pressure. When the positioning hole 505 is located at one end of the top post 503, the compressed spring 504 pushes the top post 503 into the positioning hole 505 to position the test trolley 1 and the vehicle body welding platform 2. This also increases the resistance during the rotation of the vehicle body welding platform 2, allowing the angle of the vehicle body welding platform 2 to be determined using the resistance.

[0041] After the body welding platform 2 is hoisted, the angle between the body welding platform 2 and the test trolley 1 is adjusted by rotating the body welding platform 2 in conjunction with the positioning mechanism 5, so as to carry out frontal collision, side collision and rear-end collision tests according to actual needs. After the angle is adjusted, the platform fixing bolts 3 and the first hexagonal nut 4 can still be used to fix the body welding platform 2 and the test trolley 1.

[0042] After the angle of the body welding platform 2 is adjusted, the platform fixing bolt 3 is used to thread the body welding platform 2 through the first hexagonal nut 4 to fix the test trolley 1 and the body welding platform 2. Then, according to the test requirements, the body white is hoisted onto the surface of the body welding platform 2 and fixed by welding.

[0043] When it is necessary to improve the fixing strength of the body-in-white, the threaded rod 602 is connected to the second hexagonal nut 601 by rotating the threaded sleeve 603, and then the threaded sleeve 603 is rotated to drive the welding plate 604 to fit against the bottom of the body-in-white, so that the welding plate 604 and the body-in-white are fixed by welding again, thereby improving the fixing effect of the body-in-white to meet the testing requirements.

[0044] After the test is completed, the body welding platform 2 is separated from the body white by cutting. Then, the body welding platform 2 is flipped and reconnected to the test trolley 1 to eliminate the deformation of the body welding platform 2 caused by body welding and cutting, so that the body welding platform 2 can undergo multiple collision test tests.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A welding platform for a simulated crash test of a vehicle, comprising a test sled (1), characterized in that The upper surface of the test trolley (1) is provided with a vehicle welding platform (2), the inner side wall of the test trolley (1) is symmetrically connected with four first hexagonal nuts (4), the inner side wall of the vehicle welding platform (2) is slidably connected with four platform fixing bolts (3), the platform fixing bolt (3) is threadedly connected with the first hexagonal nut (4), the middle part of the vehicle welding platform (2) is provided with a positioning mechanism (5), and the upper surface of the vehicle welding platform (2) is symmetrically provided with four auxiliary welding mechanisms (6). The positioning mechanism (5) is used for positioning the angle between the test trolley (1) and the vehicle welding platform (2).

2. The welding platform for simulated crash test of an automobile according to claim 1, characterized in that: The positioning mechanism (5) comprises a center positioning column (501), a through hole (502), two top columns (503), two springs (504) and a plurality of positioning holes (505). The center positioning column (501) is fixedly connected to the middle part of the upper surface of the test trolley (1), the through hole (502) is formed in the middle part of the upper surface of the vehicle welding platform (2), the inner side wall of the through hole (502) is slidably connected to the outer side wall of the center positioning column (501), and a plurality of positioning holes (505) are formed in the middle part of the outer side wall of the center positioning column (501).

3. The welding platform for simulated crash testing of an automobile according to claim 2, characterized in that: The outer side walls of the two top columns (503) are slidably connected to the inner side walls of the vehicle welding platform (2), one ends of the two springs (504) are fixedly connected to one ends of the two top columns (503), and the other ends of the two springs (504) are fixedly connected to the inner side walls of the vehicle welding platform (2), and the outer side walls of the top columns (503) are slidably connected to the inner side walls of the positioning holes (505).

4. The welding platform for simulated crash testing of an automobile according to claim 1, characterized in that: The four auxiliary welding mechanisms (6) each comprise a second hexagonal nut (601), a threaded rod (602), a threaded sleeve (603) and a welding plate (604). The second hexagonal nut (601) is fixedly connected to the upper surface of the vehicle welding platform (2), the outer side wall bottom of the threaded rod (602) is threadedly connected to the inner side wall of the second hexagonal nut (601), the threaded sleeve (603) is threadedly connected to the outer side wall top of the threaded rod (602), and the welding plate (604) is fixedly connected to the top of the threaded sleeve (603).

5. The welding platform for simulated crash testing of an automobile of claim 1, wherein: The outer side wall of the vehicle welding platform (2) is symmetrically fixedly connected with four lifting rings (71).

6. The welding platform for simulated crash testing of an automobile of claim 1, wherein: The vehicle welding platform (2) adopts a rectangular steel frame structure, which is symmetrical in up-down and left-right directions.

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