A headlamp mounting bracket strength detection device

Abstract

This utility model relates to the field of headlight mounting bracket strength testing technology, and discloses a headlight mounting bracket strength testing device, comprising: a fixing component, including: two U-shaped plates arranged opposite each other for placing the headlight bracket; a horizontal plate attached to the top of the U-shaped plates, the horizontal plate having a through hole; and two bolts for fixing the headlight bracket; and a vibration component, including: a bidirectional motor fixedly mounted on a base plate; two rotating shafts respectively connected to the two output ends of the bidirectional motor, rotating synchronously with the bidirectional motor; and two pressing plates respectively fixed to the ends of the two rotating shafts away from the bidirectional motor, rotating with the shafts to press and strike the plates. This headlight mounting bracket strength testing device provides a stable and reliable fixation: the U-shaped plates support the headlight bracket, and the pressing action of the horizontal plate and the two bolts firmly fixes the headlight bracket to the equipment, avoiding the impact of bracket loosening on testing accuracy during the testing process and ensuring the accuracy of the test results.

Description

Technical Field

[0001] This utility model relates to the field of headlight mounting bracket strength testing technology, specifically a headlight mounting bracket strength testing device. Background Technology

[0002] In the automotive manufacturing and assembly industry, the strength of the headlight mounting bracket is directly related to driving safety. It needs to withstand the weight of the headlight itself, vibrations during vehicle operation, and external impacts over a long period of time. Therefore, testing its fatigue strength is crucial.

[0003] Currently, testing devices for the strength of headlight mounting brackets have several shortcomings: some devices do not securely fix the brackets, making them prone to loosening or displacement during testing, leading to distorted test data that cannot accurately reflect the actual strength of the brackets; some devices' vibration simulation effects deviate significantly from actual vehicle driving conditions, relying on simple mechanical impacts or unidirectional vibrations to achieve testing, which fails to reproduce the complex vibration environment during vehicle operation, thus limiting the reference value of the test results; furthermore, the core components of some devices wear out quickly during high-frequency vibration and friction, resulting in short device lifespan, high maintenance costs, and cumbersome operation, which hinders the improvement of testing efficiency.

[0004] Therefore, there is an urgent need for a headlight mounting bracket strength testing device that can stably fix the headlight bracket, accurately simulate the vibration state of vehicle driving, has a durable structure, and is easy to operate, in order to solve the problems existing in the prior art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a headlight mounting bracket strength testing device to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A headlight mounting bracket strength testing device, comprising:

[0008] Fixed components, including:

[0009] Two U-shaped plates positioned opposite each other are used to hold the headlight brackets;

[0010] A horizontal plate is attached to the top of the U-shaped plate, and a through hole is provided on the horizontal plate;

[0011] Bolt 2 passes through the through hole in the horizontal plate and presses the headlight bracket placed inside the U-shaped plate to fix the headlight bracket.

[0012] Vibration components, including:

[0013] A bidirectional motor is fixedly mounted on the base plate.

[0014] Two rotating shafts are connected to the two output ends of the bidirectional motor respectively, and rotate synchronously with the bidirectional motor;

[0015] Two extrusion plates are fixed to the ends of the two rotating shafts away from the bidirectional motor, and rotate with the shafts to extrude and strike the plates.

[0016] The striking plate is fixedly connected to the lower end of the slide bar, and when it is squeezed by the pressing plate, it causes the slide bar to move upward.

[0017] The sliding rod is fixedly connected to the support plate at the upper end and to the striking plate at the lower end, and can slide along the fixed plate.

[0018] A spring, fitted onto the slide bar, is located between the fixed plate and the striking plate, and is used to drive the support plate to move downward when the pressing plate moves away from the striking plate.

[0019] Basic support components, including:

[0020] The fixed plate has a sliding hole for the slide rod to pass through, which is used to support the spring and guide the slide rod to slide.

[0021] The base plate serves as the foundation for the device, supporting the bidirectional motor and the mounting plate.

[0022] A fixed bracket is bolted through and locked onto the support plate to assist in fixing the support plate.

[0023] Preferably, the inner wall of the U-shaped plate is provided with a rubber anti-slip pad layer, and the surface of the rubber anti-slip pad layer is provided with uniformly distributed anti-slip protrusions.

[0024] Preferably, the spring is a cylindrical helical compression spring with a wire diameter of 3-5 mm and a free length that is 1.2-1.5 times the effective sliding stroke of the slide rod.

[0025] Preferably, the contact surface between the slide rod and the sliding hole of the fixing plate is provided with a chrome-plated wear-resistant layer, and the thickness of the chrome-plated wear-resistant layer is 0.05-0.1mm.

[0026] Preferably, the end of the extrusion plate away from the rotating shaft has a circular arc transition structure with a radius of 5-8 mm.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. The headlight mounting bracket strength testing device is securely and reliably fixed: the headlight bracket is supported by a U-shaped plate, and with the clamping action of the horizontal plate and bolts, the headlight bracket can be firmly fixed to the equipment, avoiding the impact of bracket loosening on the testing accuracy during the testing process and ensuring the accuracy of the test results.

[0029] 2. The headlight mounting bracket strength testing device simulates vibration realistically: by using a bidirectional motor to drive the rotating shaft and the extrusion plate to rotate, and in conjunction with components such as the slide rod and spring, the support plate can move up and down reciprocatingly. This can effectively simulate the vibration state during vehicle operation, making the testing of the fatigue strength of the headlight bracket more in line with actual use scenarios, and the test results more valuable for reference.

[0030] 3. The headlight mounting bracket strength testing device has a stable and durable structure: the fixing plate provides stable support for the slide rod and spring, and the sliding connection between the slide rod and the fixing plate ensures the stability of the support plate movement; some components, such as the slide rod, are equipped with a chrome-plated wear-resistant layer, and the ends of the extrusion plate adopt a rounded transition structure, which reduces wear between components and extends the service life of the device.

[0031] 4. The headlight mounting bracket strength testing device is easy and efficient to operate: the headlight bracket is fixed by bolts and other components, which is simple and convenient to operate, and facilitates quick installation and disassembly of the bracket, thus improving the efficiency of testing. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0033] Figure 2 This is a three-dimensional schematic diagram of the support plate and related structures of this utility model;

[0034] Figure 3 This is a bottom view of the structure of this utility model.

[0035] In the diagram: 1. Support plate; 2. Fixed bracket; 3. Bolt 1; 4. U-shaped plate; 5. Horizontal plate; 6. Bolt 2; 7. Sliding rod; 8. Spring; 9. Fixed plate; 10. Base plate; 11. Striking plate; 12. Bidirectional motor; 13. Rotating shaft; 14. Extrusion plate. Detailed Implementation

[0036] 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.

[0037] Example:

[0038] Please refer to Figures 1-3.

[0039] A headlight mounting bracket strength testing device, comprising:

[0040] Fixed components, including:

[0041] Two U-shaped plates 4 arranged opposite each other are used to place the headlight brackets;

[0042] A horizontal plate 5 is attached to the top of the U-shaped plate 4, and a through hole is provided on the horizontal plate 5;

[0043] Bolt 26 passes through the through hole in the horizontal plate 5 and presses the headlight bracket placed in the U-shaped plate 4 to fix the headlight bracket.

[0044] Vibration components, including:

[0045] A bidirectional motor 12 is fixedly mounted on the base plate 10;

[0046] Two rotating shafts 13 are respectively connected to the two output ends of the bidirectional motor 12 and rotate synchronously with the bidirectional motor 12;

[0047] Two pressing plates 14 are respectively fixed to the ends of the two rotating shafts 13 away from the bidirectional motor 12, and rotate with the rotating shafts 13 to press and strike the plate 11.

[0048] The striking plate 11 is fixedly connected to the lower end of the slide bar 7. When it is squeezed by the pressing plate 14, it drives the slide bar 7 to move upward.

[0049] The upper end of the sliding rod 7 is fixedly connected to the support plate 1, and the lower end is connected to the striking plate 11. It can slide along the fixed plate 9.

[0050] Spring 8, sleeved on slide bar 7, is located between fixed plate 9 and striking plate 11, and is used to drive support plate 1 to move down when pressing plate 14 moves away from striking plate 11.

[0051] Basic support components, including:

[0052] The fixed plate 9 has a sliding hole through which the slide rod 7 passes, which is used to support the spring 8 and guide the slide rod 7 to slide.

[0053] The base plate 10 serves as the foundation of the device, supporting the bidirectional motor 12 and the fixing plate 9.

[0054] The fixed bracket 2 is threaded through and locked onto the support plate 1 by bolt 3, and is used to assist in fixing the support plate 1;

[0055] Specifically, the fixing component: the headlight bracket is supported by two opposing U-shaped plates. After the horizontal plate 5 is attached to the top of the U-shaped plate, bolt 2 6 passes through the through hole of the horizontal plate 5 and presses the headlight bracket, so as to achieve a firm fixation of the bracket on the device, ensure the stability of the bracket position during the test, and avoid the impact of loosening on the test accuracy.

[0056] Vibration assembly: The bidirectional motor 12 drives the two rotating shafts 13 to rotate, which in turn drives the extrusion plate 14 to rotate synchronously. When the extrusion plate 14 rotates to contact the striking plate 11, it pushes the striking plate 11 to move upward, which in turn drives the slide rod 7 and the support plate 1 to move upward. When the extrusion plate 14 rotates away from the striking plate 11, the spring 8 is sleeved on the slide rod 7 and located between the fixed plate 9 and the striking plate 11. Due to the elastic reset, a downward pulling force is generated, which drives the support plate 1 to move downward. By simulating the reciprocating motion of moving upward and downward, the vibration during vehicle driving is simulated, thereby testing the fatigue strength of the headlight bracket.

[0057] Basic support components: The fixed plate 9 provides guidance for the sliding rod 7 through the sliding hole, ensuring the vertical and stable movement of the sliding rod 7, while supporting the spring 8; the base plate 10 serves as the basic carrier of the entire device, fixing the bidirectional motor 12 and the fixed plate 9; the fixed bracket 2 is locked to the support plate 1 by bolt 3, which helps to enhance the structural stability of the support plate 1 and prevents the support plate 1 from deforming during vibration.

[0058] In the embodiment: the inner wall of the U-shaped plate 4 is provided with a rubber anti-slip pad layer, and the surface of the rubber anti-slip pad layer is provided with uniformly distributed anti-slip protrusions;

[0059] Specifically, the rubber anti-slip pad layer on the inner wall of the U-shaped plate and the evenly distributed anti-slip protrusions on the surface can increase the friction between the headlight bracket and the U-shaped plate; during the vibration test of the device, it can effectively prevent the bracket from shifting or shaking due to vibration, ensuring that the bracket is always in a stable fixed state and guaranteeing the accuracy of the test results.

[0060] In the embodiment: the spring 8 is a cylindrical helical compression spring 8 with a wire diameter of 3-5mm and a free length of 1.2-1.5 times the effective sliding stroke of the slide rod 7;

[0061] Specifically, a cylindrical helical compression spring 8 is used, which can stably store and release energy through elastic deformation, ensuring that the support plate 1 can move down quickly and smoothly after the compression plate 14 moves away, simulating the vibration rhythm of a real vehicle.

[0062] The design of a steel wire diameter of 3-5mm and a free length that is 1.2-1.5 times the effective sliding stroke of the slide bar 7 and the cross plate ensures that the spring 8 has sufficient elasticity to drive the support plate 1 to return to its original position, while avoiding excessive elasticity that leads to excessive vibration amplitude or insufficient vibration that leads to insufficient vibration. This makes the vibration intensity more consistent with the actual driving state of the vehicle and improves the authenticity of the detection.

[0063] In this embodiment: the contact surface between the slide rod 7 and the sliding hole of the fixing plate 9 is provided with a chrome-plated wear-resistant layer, the thickness of which is 0.05-0.1mm;

[0064] Specifically, the contact surface between the slide rod 7 and the sliding hole of the fixed plate 9 is provided with a 0.05-0.1mm thick chrome-plated wear-resistant layer. The chrome-plated layer has high hardness and strong wear resistance, which can reduce the wear of the two during the high-frequency reciprocating sliding process, extend the service life of the device, and at the same time prevent the slide rod 7 from shaking due to wear, ensure the stability of the support plate 1 during vibration, and maintain the detection accuracy.

[0065] In the embodiment: the end of the extrusion plate 14 away from the rotating shaft 13 has a rounded transition structure with a radius of 5-8mm;

[0066] Specifically, the end of the extrusion plate 14 away from the rotating shaft 13 adopts a circular arc transition structure with a radius of 5-8mm, which can reduce stress concentration when the extrusion plate 14 contacts the striking plate 11; during the high-frequency impact process, the circular arc structure can reduce the local wear rate, and at the same time avoid uneven force on the striking plate 11 due to sharp edges and corners, such as local deformation, to ensure that the action of the striking plate 11 driving the slide bar 7 to move upward is stable and maintain the consistency of the vibration rhythm.

[0067] In the embodiment: the bidirectional motor 12 is an existing structure, and the control circuit can be implemented by a person skilled in the art through simple programming. It is common knowledge in the art. It is only used and not modified. Therefore, the control method and circuit connection will not be described in detail.

[0068] Working Principle: The working principle of this headlight mounting bracket strength testing device is as follows: First, the headlight bracket is placed inside two U-shaped plates. Then, the horizontal plate 5 is attached to the U-shaped plates. Bolt 2 6 passes through the horizontal plate 5 and presses the headlight bracket, thus fixing it to the device. The headlight is then installed on the bracket. After the bidirectional motor 12 is turned on, the motor drives the two rotating shafts 13 to rotate. The rotating shafts 13 then drive the two pressing plates 14 to rotate, pressing the striking plate 11. This causes the striking plate 11 to move the sliding rod 7 upwards, which in turn moves the support plate 1 upwards. When the pressing plate 14 moves away from the striking plate 11, the support plate 1 moves downwards under the action of the spring 8. The fixing plate 9 supports the spring 8 and the sliding rod 7. The sliding rod 7 is slidably connected to the fixing plate 9, enabling stable movement of the support plate 1. The vibration process simulates the vehicle's driving state, thereby testing the fatigue strength of the headlight bracket. Furthermore, bolt 1 3 is used to pass through the fixing bracket 2 and lock the fixing bracket 2 onto the support plate 1.

[0069] 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 headlight mounting bracket strength testing device, characterized in that, include: Fixed components, including: Two U-shaped plates (4) are arranged opposite each other to hold the headlight bracket; A horizontal plate (5) is attached to the top of the U-shaped plate (4), and a through hole is provided on the horizontal plate (5); Bolt 2 (6) passes through the through hole of the horizontal plate (5) and presses the headlight bracket placed in the U-shaped plate (4) to fix the headlight bracket; Vibration components, including: A bidirectional motor (12) is fixedly mounted on the base plate (10); Two rotating shafts (13) are respectively connected to the two output ends of the bidirectional motor (12) and rotate synchronously with the bidirectional motor (12); Two pressing plates (14) are fixed to the ends of the two rotating shafts (13) away from the bidirectional motor (12), and rotate with the rotating shafts (13) to press the striking plate (11). The striking plate (11) is fixedly connected to the lower end of the slide bar (7). When squeezed by the pressing plate (14), it drives the slide bar (7) to move upward. The upper end of the sliding rod (7) is fixedly connected to the support plate (1), and the lower end is connected to the striking plate (11), which can slide along the fixed plate (9); Spring (8), sleeved on slide bar (7), is located between fixed plate (9) and striking plate (11) and is used to drive support plate (1) to move down when pressing plate (14) moves away from striking plate (11); Basic support components, including: The fixed plate (9) has a sliding hole through which the slide rod (7) passes, which is used to support the spring (8) and guide the slide rod (7) to slide. The base plate (10) serves as the foundation of the device, supporting the bidirectional motor (12) and the fixing plate (9). The fixed bracket (2) is inserted and locked onto the support plate (1) by a bolt (3) to assist in fixing the support plate (1).

2. The headlight mounting bracket strength testing device according to claim 1, characterized in that: The inner wall of the U-shaped plate (4) is provided with a rubber anti-slip pad layer, and the surface of the rubber anti-slip pad layer is provided with uniformly distributed anti-slip protrusions.

3. The headlight mounting bracket strength testing device according to claim 1, characterized in that: The spring (8) is a cylindrical helical compression spring with a wire diameter of 3-5 mm and a free length of 1.2-1.5 times the effective sliding stroke of the slide bar (7).

4. The headlight mounting bracket strength testing device according to claim 1, characterized in that: The contact surface between the slide rod (7) and the sliding hole of the fixing plate (9) is provided with a chrome-plated wear-resistant layer, the thickness of which is 0.05-0.1mm.

5. The headlight mounting bracket strength testing device according to claim 1, characterized in that: The end of the extrusion plate (14) away from the rotating shaft (13) has a circular arc transition structure with a radius of 5-8 mm.

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