Automobile front windshield testing device

Abstract

The invention discloses an automobile front windshield test device, and relates to the technical field of test devices, the automobile front windshield test device comprises a workbench, a limiting mechanism and an ejection mechanism, the limiting mechanism is arranged on a fixing plate on one side of the workbench, and the ejection mechanism is arranged on a supporting seat on the other side of the workbench. According to the device, the automobile front windshield is fixed through the limiting mechanism, meanwhile, the arranged ejection mechanism adopts the design of multiple ejection holes and is matched with the striking rods in one-to-one correspondence, synchronous striking of multiple points of the front windshield in a single test can be achieved, and compared with a traditional single-station device, the device is particularly suitable for rapid detection of batch front windshields. In the aspect of launching control, through the structural design that the motor drives the shifting plate to trigger the limiting rod, the opportunity that the limiting ball is separated from the limiting groove of the sliding rod can be accurately controlled, it is ensured that the compression amount of the launching spring is consistent during launching every time, then the launching speed and impact force stability of the steel ball are ensured, and the reliability of a test result is improved.

Description

Technical Field

[0001] This invention relates to the technical field of testing equipment, and specifically to a testing device for automobile windshields. Background Technology

[0002] As a key component of a vehicle's passive safety system, the windshield not only fulfills its basic functions of shielding from wind and rain and ensuring visibility, but its strength performance is also directly related to the safety of passengers. During vehicle operation, the windshield may face unexpected situations such as impacts from gravel or flying debris. If the glass is not strong enough, it is highly susceptible to cracking or even disintegration, potentially leading to serious accidents such as injuries to occupants and loss of vehicle control. Therefore, rigorous strength testing of the windshield is a core procedure in ensuring vehicle safety performance during automotive research and development, production, and quality inspection.

[0003] In the impact testing stage, most existing catapult mechanisms are single-station designs, meaning that only a single area of ​​the glass can be impacted in a single test. To verify the strength of different areas of the glass, the glass position or device parameters need to be adjusted multiple times, making the testing process lengthy and inefficient. Furthermore, some catapult mechanisms use manual or simple mechanical triggering methods, making it difficult to precisely control the launch force and consistency of the steel ball. This results in significant dispersion in test data for the same batch of glass, failing to provide a reliable basis for product quality assessment. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for automotive windshields to overcome the aforementioned deficiencies in the prior art.

[0005] A testing device for automotive windshields includes a worktable, a limiting mechanism, and a ejection mechanism; The limiting mechanism is mounted on a fixed plate on one side of the workbench and is used to fix the windshield. The ejection mechanism is located on a support on the other side of the workbench and is used to launch steel balls forward onto the windshield for strength testing.

[0006] Preferably, the limiting mechanism includes a support column, a lower limiting column, a left limiting column, and a cylinder. The support column is disposed on a fixed plate, the lower limiting column is disposed on the lower side of the fixed plate, the left limiting column is disposed on the left side of the fixed plate, and the cylinder is disposed on a mounting seat on the right side of the fixed plate. The piston rod end of the cylinder is provided with a slider that is slidably connected to a slide rail on the mounting seat, and the slider is provided with a right limiting column.

[0007] Preferably, the ejection mechanism includes a connecting seat, a launching seat, and a motor. The connecting seat is mounted on a support base, and the launching seat is connected to the connecting seat via a connecting rod. The launching seat has launching holes for placing steel balls. A sliding rod is slidably connected to the connecting seat. The inner end of the sliding rod has a mounting plate, and the mounting plate has striking rods corresponding to the launching holes. A launching spring is sleeved on the sliding rod between the connecting seat and the mounting plate. A limiting rod is slidably connected to the outer side of the connecting seat. The inner end of the limiting rod has a limiting ball that mates with a limiting groove on the sliding rod. The outer end of the limiting rod has a drive plate, and a limiting spring is sleeved on the limiting rod. The motor is mounted on the lower side of the connecting seat, and its output shaft has a lever for actuating the drive plate.

[0008] Preferably, there are several support columns.

[0009] Preferably, there are two lower limit posts located on both sides of the fixing plate.

[0010] Preferably, four connecting rods are arranged in a matrix between the connecting seat and the launching seat, and the two ends of the mounting plate are respectively limited between the upper and lower connecting rods on both sides.

[0011] Preferably, the launching holes are provided in three places and are evenly distributed on the launching base.

[0012] Preferably, the drive plate is connected to the outer end of the limiting rod by screws.

[0013] Preferably, the actuating end of the dial is provided with a rubber pad.

[0014] The beneficial effects achieved by this invention are as follows: This application uses a limiting mechanism to fix the automotive windshield, while the ejection mechanism employs a multi-launch hole design. Combined with corresponding striking rods, it enables simultaneous impact of multiple points on the windshield in a single test, making it particularly suitable for rapid testing of batches of windshields compared to traditional single-station devices. In terms of launch control, the structure design of a motor-driven dial triggering the limiting rod precisely controls the timing of the limiting ball's disengagement from the sliding rod's limiting groove, ensuring consistent spring compression with each launch. This guarantees stable launch speed and impact force of the steel ball, improving the reliability of the test results. Simultaneously, the sliding fit between the sliding rod and the connecting seat, and the limiting design between the mounting plate and the connecting rod, ensure the accuracy of the striking rod's trajectory, preventing steel ball launch deviation due to component vibration, further guaranteeing test accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2This is a schematic diagram of the structure of the present invention when it is not installed on the workbench.

[0017] Figure 3 This is a schematic diagram of the limiting mechanism of the present invention.

[0018] Figure 4 and Figure 5 This is a schematic diagram of the ejection mechanism of the present invention.

[0019] In the diagram, 1. Workbench; 11. Fixed plate; 12. Support base; 2. Limiting mechanism; 21. Support column; 22. Lower limit column; 23. Left limit column; 24. Cylinder; 25. Mounting base; 26. Slide rail; 27. Slider; 28. Right limit column; 3. Ejection mechanism; 31. Connecting base; 32. Connecting rod; 33. Launching base; 331. Launching hole; 332. Steel ball; 34. Slide rod; 35. Mounting plate; 351. Strike rod; 36. Launching spring; 37. Limiting rod; 371. Limiting ball; 372. Drive plate; 373. Limiting spring; 38. Motor; 39. Paddle plate; 391. Rubber pad. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0022] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] like Figure 1-5As shown, the present invention provides a testing device for automotive windshields, including a worktable 1, a limiting mechanism 2, and an ejection mechanism 3; In addition, the limiting mechanism 2 is mounted on a fixed plate 11 on one side of the workbench 1 and is used to fix the windshield. The limiting mechanism 2 includes a support column 21, a lower limiting column 22, a left limiting column 23 and a cylinder 24. Several support columns 21 are provided and mounted on the fixed plate 11. Two lower limiting columns 22 are provided on both sides of the lower end of the fixed plate 11, providing two balanced positioning points for the bottom of the windshield. The left limiting column 23 is located on the left side of the fixed plate 11. The cylinder 24 is mounted on a mounting seat 25 on the right side of the fixed plate 11. The piston rod end of the cylinder 24 is provided with a slider 27 that is slidably connected to the slide rail 26 on the mounting seat 25. The slider 27 is provided with a right limiting column 28. By using limiting posts in the lower, left, and right directions, a stable positioning and clamping system is formed, ensuring that the glass is quickly and accurately positioned in the preset position and will not move or deflect during impact.

[0024] In addition, the ejection mechanism 3 is located on the support base 12 on the other side of the workbench 1 and is used to launch steel balls 332 towards the windshield for strength testing. The ejection mechanism 3 includes a connecting base 31, a launching base 33 and a motor 38. The connecting base 31 is located on the support base 12. The launching base 33 is connected to the connecting base 31 by connecting rods 32. There are four connecting rods 32 arranged in a matrix between the connecting base 31 and the launching base 33, which ensures the stability of the launching base 33 relative to the connecting base 31. The launching base 33 is provided with launching holes 331 for placing steel balls 332. There are three launching holes 331 and they are evenly distributed on the launching base 33. The glass can be installed at one time and three impact tests at different points can be carried out continuously, which greatly improves the testing efficiency. However, a sliding rod 34 is slidably connected to the connecting seat 31. The inner end of the sliding rod 34 is provided with a mounting plate 35. The two ends of the mounting plate 35 are respectively limited between the upper and lower connecting rods 32 on both sides. The mounting plate 35 is provided with a striking rod 351 corresponding to the firing hole 331. A firing spring 36 is sleeved on the sliding rod 34 and located between the connecting seat 31 and the mounting plate 35. A limiting rod 37 is slidably connected to the outer side of the connecting seat 31. The inner end of the limiting rod 37 is provided with a limiting ball 371 that cooperates with the limiting groove on the sliding rod 34. The outer end of the limiting rod 37 is provided with a driving plate 372. The driving plate 372 is connected to the outer end of the limiting rod 37 by screws, which facilitates the disassembly and assembly of the driving plate 372. In addition, a limiting spring 373 is sleeved on the limiting rod 37, and the motor 38 is installed on the lower side of the connecting seat 31, and its output shaft is provided with a lever 39 for actuating the drive plate 372. The actuating end of the lever 39 is provided with a rubber pad 391, which can buffer the impact when the lever 39 collides with the drive plate 372. The launch spring 36 is used to store and release energy. The launch speed of the steel ball 332 can be precisely controlled by preset spring compression, ensuring that the impact conditions are consistent for each test and that the test data is highly comparable.

[0025] Detailed implementation methods and principles: When testing a car windshield, the operator places the windshield to be tested on the lower limit post 22 of the fixing plate 11, using the lower limit post 22 to achieve initial vertical support and positioning of the glass. Next, adjust the horizontal position of the windshield so that the left side of the windshield is in close contact with the left limiting post 23 on the left side of the fixing plate 11. The left limiting post 23 completes the horizontal positioning of the left side of the windshield, restricting its horizontal movement to the left. Activate the cylinder 24 on the right side of the fixing plate 11. The piston rod of the cylinder 24 drives the slider 27 to slide along the slide rail 26 on the mounting base 25. Simultaneously, the slider 27 drives the right limit post 28 on it to move towards the windshield until the right limit post 28 is tightly fitted with the right side of the glass. At this point, the windshield is fixed.

[0026] The operator places test steel balls 332 into the three launch holes 331 on the launch base 33, and manually pulls the slide bar 34 of the ejection mechanism 3. The slide bar 34 slides along the connecting seat 31 and drives the mounting plate 35 at the inner end to move synchronously. The launch spring 36 between the mounting plate 35 and the connecting seat 31 is compressed and stores elastic potential energy. As the slide bar 34 moves outward, when the limiting groove on the slide bar 34 moves to the position corresponding to the limiting ball 371 at the inner end of the limiting rod 37, the limiting rod 37 slides under the elastic force of the limiting spring 373, so that the limiting ball 371 is embedded in the limiting groove of the slide bar 34, thereby realizing the limiting lock of the slide bar 34. At this time, the launch spring 36 remains compressed and the ejection mechanism 3 is in the ready-to-launch state. Next, the motor 38 is started. The output shaft of the motor 38 drives the dial plate 39 to rotate. When the dial plate 39 rotates to contact the drive plate 372 at the outer end of the limit rod 37, the dial plate 39 generates an outward pushing force on the drive plate 372. The drive plate 372 drives the limit rod 37 to slide outward against the elastic force of the limit spring 373, so that the limit ball 371 at the inner end of the limit rod 37 disengages from the limit groove of the slide rod 34, releasing the limit lock on the slide rod 34. The launch spring 36, which is in a compressed state, quickly resets, releases elastic potential energy, and pushes the mounting plate 35 to move inward quickly. The striking rods 351 on the mounting plate 35, which correspond one-to-one with the launch holes 331, synchronously and at high speed strike the steel ball 332 in the launch hole 331. Under the impact force of the striking rods 351, the steel ball 332 is synchronously shot out from the three launch holes 331 and strikes the corresponding test area of ​​the fixed windshield in front.

[0027] The testers observed and recorded data such as the glass breakage and crack propagation morphology under the impact of a steel ball (332), completing a strength test.

[0028] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automotive windshield testing apparatus, characterized by: Including workbench (1), limiting mechanism (2) and catapult mechanism (3); The limiting mechanism (2) is arranged on the fixed plate (11) on one side of the workbench (1) and is used for fixing the front windshield; The catapult mechanism (3) is arranged on the support seat (12) on the other side of the workbench (1) and is used for launching the steel ball (332) to the front windshield for strength test.

2. The apparatus for testing an automobile front windshield glass as set forth in claim 1, wherein: The limiting mechanism (2) includes a support column (21), a lower limiting column (22), a left limiting column (23) and a cylinder (24), the support column (21) is arranged on the fixed plate (11), the lower limiting column (22) is arranged on the lower side of the fixed plate (11), the left limiting column (23) is arranged on the left side of the fixed plate (11), the cylinder (24) is arranged on the mounting seat (25) on the right side of the fixed plate (11), the piston rod end of the cylinder (24) is provided with a sliding block (27) which is slidingly connected with a sliding rail (26) on the mounting seat (25), and the sliding block (27) is provided with a right limiting column (28).

3. The apparatus of claim 1, wherein: The catapult mechanism (3) includes a connecting seat (31), a launching seat (33) and a motor (38), the connecting seat (31) is arranged on the support seat (12), the connecting seat (31) is connected with the launching seat (33) through a connecting rod (32), the launching seat (33) is provided with a launching hole (331) for placing the steel ball (332), the connecting seat (31) is slidingly connected with a sliding rod (34), the inner end of the sliding rod (34) is provided with a mounting plate (35), the mounting plate (35) is provided with a striker (351) corresponding to the launching hole (331), the sliding rod (34) is provided with a launching spring (36) between the connecting seat (31) and the mounting plate (35), the outer side of the connecting seat (31) is slidingly connected with a limiting rod (37), the inner end of the limiting rod (37) is provided with a limiting ball (371) matched with a limiting groove on the sliding rod (34), the outer end of the limiting rod (37) is provided with a driving plate (372), the limiting rod (37) is provided with a limiting spring (373), and the motor (38) is installed on the lower side of the connecting seat (31) and is provided with a dial plate (39) on the output shaft for dialing the driving plate (372).

4. The apparatus of claim 2, wherein: The support column (21) is provided with a plurality of.

5. The apparatus of claim 2, wherein: The lower limiting column (22) is provided with two and arranged on both sides of the fixed plate (11).

6. The apparatus of claim 2, wherein: The connecting rod (32) is provided with four and arranged in a matrix between the connecting seat (31) and the launching seat (33), and the two ends of the mounting plate (35) are limited between the upper and lower connecting rods (32) on both sides.

7. The apparatus of claim 3, wherein: The launching hole (331) is provided with three and is uniformly distributed on the launching seat (33).

8. The apparatus of claim 3, wherein: The driving plate (372) is connected with the outer end of the limiting rod (37) through screws.

9. The apparatus of claim 3, wherein: The dialing end of the dial plate (39) is provided with a rubber pad (391).

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