A device for testing the strength of an automobile bumper beam

Abstract

The utility model discloses a kind of automobile crash beam strength testing device, belong to crash beam strength test technical field, comprising: processing table, the upper portion of processing table is provided with the test plate for automobile crash beam strength test;Several moving plates, be set in the upper portion of processing table, two pull plates are welded in the side surface of moving plate, two moving blocks are welded in the bottom of moving plate, the bottom surface of processing table is provided with two sliding through-slots for the sliding of several moving blocks, the inner wall of sliding through-slot is respectively welded with limit rod and two limit plates, two limit plates adjacent side are welded with limit rod, moving block side surface is respectively inlayed with limit rod, two limit plates slidingly connected, the bottom surface of several moving plates is slidably connected with processing table, the device can continuously test the strength of multiple automobile crash beams, without disassembling and replacing automobile crash beam for testing, while preparing for next strength test during strength test process, improve the use convenience of device.

Description

Technical Field

[0001] This utility model belongs to the field of anti-collision beam strength testing technology, and in particular, a device for testing the strength of automotive anti-collision beams. Background Technology

[0002] Car crash beams require strength testing equipment for strength testing. The strength test includes bending test of the car crash beam. By compressing the car crash beam, the force and deformation curvature of the car crash beam are tested. Existing strength testing equipment often requires fixing the car crash beam during the strength test. Since the strength testing equipment needs to test the strength of multiple car crash beams, the operation is relatively complicated and inconvenient for testing multiple car crash beams, reducing the ease of use of the equipment.

[0003] A search of related technologies revealed a Chinese patent document (authorization announcement number CN217765884U) for a vehicle anti-collision beam strength testing device. This device includes a base plate, a support frame fixed to the top of the base plate, a telescopic testing machine at the bottom of the support frame, a placement frame and a first fixing block fixed to the top of the base plate, a sliding groove on the top of the placement frame, a clamping member within the groove for holding the anti-collision beam, a groove on the top of the first fixing block, a spring-loaded member within the groove, and a second fixing block fixed to the top of the spring-loaded member. This invention prevents the anti-collision beam from sliding during testing and provides a positioning device for the anti-collision beam to prevent broken debris from escaping, thereby improving the stability of the anti-collision beam and the overall safety of the device. However, the aforementioned patent is relatively complex to operate when testing the strength of multiple vehicle anti-collision beams, reducing the ease of use of the device. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle anti-collision beam strength testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle anti-collision beam strength testing device, comprising:

[0006] The processing table has a test plate for testing the strength of automotive anti-collision beams installed on its upper part.

[0007] Several movable plates are set on the upper part of the processing table. Two C-shaped symmetrical pull plates are welded to the sides of the movable plates. Two movable blocks are welded to the bottom of the movable plates. Two sliding grooves are opened on the bottom surface of the processing table for the movable blocks to slide. Limit rods and two limit plates are welded to the inner walls of the sliding grooves respectively. The adjacent sides of the two limit plates are welded to the limit rods. The sides of the movable blocks are slidably connected to the limit rods and the two limit plates respectively. The bottom surfaces of the movable plates are all slidably connected to the processing table.

[0008] Preferably, the bottom surface of the processing table is flush with the bottom surface of several movable blocks, and several support plates are welded to the bottom of the processing table.

[0009] Preferably, an inverted U-shaped support frame is provided above several support plates, and a hydraulic cylinder is embedded in the top surface of the support frame.

[0010] Preferably, the moving end of the hydraulic cylinder is connected to the test plate, and two positioning rods are welded to the top surface of the test plate.

[0011] Preferably, the inner top wall of the support frame is slidably connected to the two positioning rods, and the bottom surface of the support frame is welded to the processing table.

[0012] Preferably, the top surface of the movable plate is provided with two fixing components for fixing the car anti-collision beam. The fixing components include a fixing bracket with a recessed top and four fixing rods.

[0013] Preferably, the inner bottom wall of the fixing frame is welded to four fixing rods, and the top surface of the fixing rods is welded with fixing studs, and the fixing studs are threaded with fixing nuts for tightly abutting against the car anti-collision beam.

[0014] Preferably, the bottom surfaces of both fixed frames are in close contact with the movable plate, and fixed plates are connected to both sides of the fixed frames by bolts. The adjacent sides of the two fixed plates are threadedly connected to the movable plate by bolts.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0016] This automotive crash beam strength testing device allows the crash beam to be tested to be placed on top of a moving plate, moving the crash beam to a designated position. Under the power provided by the hydraulic cylinder, the testing plate moves downward to perform the strength test on the crash beam. The arranged moving plates can move the crash beam to the strength testing position, allowing for strength testing of other crash beams without disassembling the tested crash beam. This improves the ease of use of the device, reduces the time required for disassembling and installing crash beams, and increases the testing efficiency of the device for automotive crash beams.

[0017] This automotive crash beam strength testing device, thanks to its fixed component design, can position and fix automotive crash beams. While traditional clamping methods are used to position and fix crash beams, in actual use, vehicles are typically installed and fixed in a designated location. When using clamping to fix the crash beam, the clamping structure provides support to the clamped portion of the beam, reducing the accuracy of the strength test. However, thanks to the design of four fixing rods, fixing studs, and fixing nuts, the device can effectively install and fix the crash beam, enhancing the accuracy of the device's strength test. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the movable plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the limiting rod of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the fixing component of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] In the diagram: 1. Processing table; 2. Test plate; 3. Moving plate; 4. Moving block; 5. Pull plate; 6. Limiting rod; 7. Limiting plate; 8. Support plate; 9. Support frame; 10. Hydraulic cylinder; 11. Positioning rod; 12. Fixing component; 13. Fixing frame; 14. Fixing rod; 15. Fixing stud; 16. Fixing nut; 17. Fixing plate. Detailed Implementation

[0025] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0026] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0027] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0028] Please see Figures 1 to 4 A vehicle anti-collision beam strength testing device, in this embodiment including:

[0029] The processing table 1 has a test plate 2 for testing the strength of the car anti-collision beam on its upper part. The car anti-collision beam is located above the processing table 1. The car anti-collision beam is squeezed and bent during the downward movement of the test plate 2 to achieve the strength test of the car anti-collision beam. The pressure is applied to the middle or a designated position of the car anti-collision beam to form symmetrical or asymmetrical bending.

[0030] Several movable plates 3 are set on the upper part of the processing table 1. Two C-shaped symmetrical pull plates 5 are welded to the side of the movable plates 3. Two movable blocks 4 are welded to the bottom of the movable plates 3. Two sliding grooves are opened on the bottom surface of the processing table 1 for the sliding of several movable blocks 4. The two movable blocks 4 connected to the lower part of each movable plate 3 are located in the inner cavity of the two sliding grooves to fix the moving position of the movable plate 3. Limiting rods 6 and two limiting plates 7 are welded to the inner wall of the sliding grooves respectively. The two limiting plates 7 are welded to the limiting rods 6 on adjacent sides. The sides of the movable blocks 4 are slidably connected to the limiting rods 6 and the two limiting plates 7 respectively.

[0031] The bottom surfaces of several movable plates 3 are slidably connected to the processing table 1. Thanks to the design of the limiting rod 6 and two limiting plates 7 set in the inner cavity of the sliding groove, the movement path of the movable plates 3 is further fixed. A car anti-collision beam can be placed on top of each movable plate 3, which allows the car anti-collision beam to be moved to a designated position for strength testing. This facilitates strength testing of multiple car anti-collision beams without disassembling the tested car anti-collision beams to replace them with new ones, improving the ease of use of the device. At the same time, while the car anti-collision beam is being tested for strength, another car anti-collision beam can be placed on top of another movable plate 3, improving the efficiency of the device in testing the strength of the car anti-collision beams.

[0032] The bottom surface of the processing table 1 is flush with the bottom surface of several movable blocks 4. Several support plates 8 are welded to the bottom of the processing table 1. An inverted U-shaped support frame 9 is set above the support plates 8. A hydraulic cylinder 10 is embedded in the top surface of the support frame 9. The fixed end of the hydraulic cylinder 10 is connected to the support frame 9 by bolts. The movable end of the hydraulic cylinder 10 is connected to the test plate 2. The top surface of the test plate 2 is connected to the movable end of the hydraulic cylinder 10 by bolts. Two positioning rods 11 are welded to the top surface of the test plate 2. The inner top wall of the support frame 9 is slidably connected to the two positioning rods 11. The bottom surface of the support frame 9 is welded to the processing table 1. Two fixing components 12 for fixing the car anti-collision beam are set on the top surface of the movable plate 3. Thanks to the design of the fixing components 12, the position of the car anti-collision beam can be fixed.

[0033] The fixing assembly 12 includes a top-recessed fixing bracket 13 and four fixing rods 14. The inner bottom wall of the fixing bracket 13 is welded to the four fixing rods 14. Fixing studs 15 are welded to the top surface of the fixing rods 14. The fixing studs 15 are threadedly connected to fixing nuts 16 for tightly abutting against the vehicle's anti-collision beam. The bottom surfaces of both fixing brackets 13 are tightly abutting against the movable plate 3. Fixing plates 17 are bolted to both sides of the fixing brackets 13. The adjacent sides of the two fixing plates 17 are threadedly connected to the movable plate 3 by bolts. The vehicle anti-collision beam typically includes a crossbeam, a vertical beam, and a positioning plate. The positioning plate typically has four through holes, and the positioning plate is connected and fixed by bolts. Currently, when installing automotive crash beams, the position of the crash beam is often fixed by clamping during strength testing. However, the clamped part supports the crash beam, reducing the accuracy of the strength test. A solution is to use four fixing rods 14 and fixing studs 15 that pass through the through holes of the positioning plate of the crash beam. With the fixing studs 15 inside the through holes, the positioning plate of the crash beam is tightened and fixed using fixing nuts 16. This eliminates the need for clamping and prevents the clamped part of the crash beam from being supported, thus reducing the accuracy of the test.

[0034] In order to fix it, the positioning plate of the car anti-collision beam is sleeved on the surface of the fixing rod 14 and the fixing stud 15, and the fixing nut 16 moves along the thread path of the fixing stud 15 so that the fixing nut 16 is tightly against the positioning plate of the car anti-collision beam, thereby realizing the installation and fixation of the car anti-collision beam.

[0035] In order to conduct the test, the hydraulic cylinder 10 provides power so that the test plate 2 squeezes the car anti-collision beam during the movement, thereby realizing the strength test of the car anti-collision beam. At the same time, the test plate 2 drives the two positioning rods 11 to move down along the path of the support frame 9 during the movement, thereby enhancing the vertical movement stability of the test plate 2.

[0036] For movement, the moving block 4 can move along the path of the limiting rod 6 and the limiting plate 7, so that the moving plate 3 moves on the top surface of the processing table 1. The moving plate 3 drives the car anti-collision beam to the designated position for strength testing. Thanks to the design of multiple moving plates 3, the strength testing of multiple car anti-collision beams can be realized without disassembling the car anti-collision beam after the test is completed and replacing it with a new car anti-collision beam for testing, which improves the ease of use of the device. At the same time, during the car anti-collision beam strength test, another car anti-collision beam can be installed and fixed on top of the moving plate 3, providing conditions for continuous strength testing of car anti-collision beams and improving testing efficiency. The bottom surface of the moving block 4 is threaded with a clamping bolt for pressing against the limiting rod 6, which can fix the position of the moving plate 3 and prevent the car anti-collision beam from shaking or shifting during the test. At the same time, when the moving plate 3 drives the car anti-collision beam to the strength test position, the clamping bolt is in a groove at the position of the limiting rod 6, which restricts the position of the clamping bolt and strengthens the position fixation effect of the car anti-collision beam. The specific stability enhancement can be determined according to the actual use requirements.

[0037] After the car crash beam is moved to the strength test position, it can be lowered on both sides of the support frame 9 by two external shielding plates. Tempered glass can be installed on the shielding plates to provide visibility and ensure they are flush against the processing table 1, thus shielding the car crash beam undergoing strength testing, preventing it from breaking and scattering debris, and enhancing the safety of the device. The shielding plates are fitted with 12mm tempered laminated glass (impact resistance ≥15kJ / m). 2 The device is 1.8m high and extends 500mm on each side of the test area. After being moved to the designated position, the gap between its bottom and the processing table is ≤5mm. Specific protective measures can be determined according to actual usage needs. It is not the problem to be solved by this utility model, nor is it the innovative content to be protected by this utility model, and will not be described in detail.

[0038] The sliding gap between the moving block 4 and the limiting rod 6 and the limiting plate 7 is 0.05-0.1mm. The contact surface is chrome-plated (hardness ≥ HRC50) to reduce wear and ensure smooth movement without jamming.

[0039] Hydraulic cylinder 10 is a conventional instrument. Its working principle, size, and model are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. In order to facilitate the inspection, maintenance, and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function, and batch. Therefore, even if there is a certain difference between two or more electrical control devices, the synchronous movement of the electrical control devices can still be maintained under the action of the controller. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this utility model.

[0040] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0041] Working principle

[0042] When in use, the car anti-collision beam strength testing device can be used to fix the car anti-collision beam on the upper part of the two fixing frames 13 through the fixing rod 14, fixing stud 15, and fixing nut 16. With the connection of the fixing plate 17, the car anti-collision beam can be fixed on the upper part of the moving plate 3 without clamping the car anti-collision beam.

[0043] The moving block 4 moves along the path of the limiting rod 6 and the limiting plate 7, which can realize the movement of several moving plates 3 on the top surface of the processing table 1. When the car anti-collision beam moves to the designated position, the hydraulic cylinder 10 is activated, so that the test plate 2 squeezes the car anti-collision beam during the downward movement, thereby realizing the strength test of the car anti-collision beam.

[0044] Multiple car crash beams can be fixedly installed on top of multiple movable plates 3 to achieve strength testing of multiple car crash beams. At the same time, while the car crash beams are being tested for strength, another car crash beam can be fixedly installed on top of another movable plate 3 to achieve continuous strength testing of the car crash beams.

[0045] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the strength of an automotive anti-collision beam, characterized in that, include: A processing table (1) is provided on the upper part of which a test plate (2) for testing the strength of automobile anti-collision beams is provided; Several movable plates (3) are set on the upper part of the processing table (1). Two C-shaped symmetrical pull plates (5) are set on the side of the movable plates (3). Two movable blocks (4) are set on the bottom of the movable plates (3). Two sliding grooves for sliding of several movable blocks (4) are opened on the bottom surface of the processing table (1). The inner wall of the sliding groove is connected to a limit rod (6) and two limit plates (7). The two limit plates (7) are connected to the limit rod (6) on their adjacent sides. The side of the movable block (4) is connected to the limit rod (6) and the two limit plates (7) respectively. The bottom surface of several movable plates (3) is connected to the processing table (1).

2. The vehicle anti-collision beam strength testing device according to claim 1, characterized in that: The bottom surface of the processing table (1) is flush with the bottom surface of several moving blocks (4), and several support plates (8) are provided at the bottom of the processing table (1).

3. The vehicle anti-collision beam strength testing device according to claim 2, characterized in that: A support frame (9) in the shape of an inverted U is provided above several of the support plates (8), and a hydraulic cylinder (10) is embedded in the top surface of the support frame (9).

4. The vehicle anti-collision beam strength testing device according to claim 3, characterized in that: The moving end of the hydraulic cylinder (10) is connected to the test plate (2), and two positioning rods (11) are provided on the top surface of the test plate (2).

5. The vehicle anti-collision beam strength testing device according to claim 4, characterized in that: The inner top wall of the support frame (9) is connected to two positioning rods (11), and the bottom surface of the support frame (9) is connected to the processing table (1).

6. The vehicle anti-collision beam strength testing device according to claim 5, characterized in that: The top surface of the movable plate (3) is provided with two fixing components (12) for fixing the car anti-collision beam. The fixing components (12) include a fixing bracket (13) with a recessed top and four fixing rods (14).

7. The vehicle anti-collision beam strength testing device according to claim 6, characterized in that: The inner bottom wall of the fixing frame (13) is connected to four fixing rods (14). The top surface of the fixing rods (14) is provided with fixing studs (15), and the fixing studs (15) are connected with fixing nuts (16) for tightly abutting against the car anti-collision beam.

8. The vehicle anti-collision beam strength testing device according to claim 7, characterized in that: The bottom surfaces of both fixed frames (13) are in close contact with the movable plate (3), and fixed plates (17) are connected to both sides of the fixed frames (13). The adjacent sides of the two fixed plates (17) are connected to the movable plate (3).

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