Vehicle lamp lampshade test tool

Abstract

The utility model discloses a vehicle lamp lampshade testing tool, and belongs to the technical field of lampshade testing. The device mainly comprises a test board, and a supporting frame is arranged on the outer side of the upper end of the test board; the moving mechanism is arranged at the upper end of the test bench, and the moving mechanism is used for adjusting and fixing the position of the lampshade; the fixing table is installed at the upper end of the test table and located between the test table and the supporting frame, a hole is formed in the center of the fixing table, and a material blocking mechanism is arranged at the upper end of the fixing table; the weight is mounted at the upper end of the material blocking mechanism; and the winding mechanism is arranged at the lower end of the supporting frame, and the winding mechanism is used for taking back the weights. According to the car lamp lampshade testing tool, the effect that the weights do not need to be manually recycled and placed after the lampshade is tested every time is achieved.

Description

Technical Field

[0001] This application relates to the field of lamp cover testing technology, specifically a testing fixture for vehicle lamp covers. Background Technology

[0002] The headlight cover is the external protective cover of the automotive lamp, usually made of transparent or translucent plastic material. Headlight cover testing fixtures are specialized equipment and tools used to evaluate the performance and quality of headlight covers. Common testing tools are usually optical performance testing tools, chemical resistance testing tools, and mechanical performance testing equipment.

[0003] Mechanical performance testing equipment is usually an impact test, which tests the impact resistance of the lampshade by letting the weights fall freely.

[0004] A search revealed, for example, a patent with publication number CN112464370A, which specifically discloses a simulation test method for the impact of gravel on vehicle headlights. This patent tests whether the surface strength is qualified by having gravel fall freely and strike the surface of the headlight cover.

[0005] However, after each lamp cover test, it is still necessary to manually collect and place the gravel or weights, resulting in low automation. This not only reduces work efficiency but also increases manpower and material resources. Therefore, it is necessary to provide a testing fixture for automotive lamp covers to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a testing fixture for vehicle headlight covers, which achieves the effect of eliminating the need for manual collection and placement of weights after each headlight cover test.

[0008] The technical solution adopted by this application to solve its technical problem is: a testing fixture for vehicle lamp covers, comprising:

[0009] The test stand has a support frame on its upper outer side;

[0010] A moving mechanism is provided at the upper end of the test platform, and the moving mechanism is used to adjust and fix the position of the lampshade;

[0011] A fixed platform is installed on the upper end of the test platform. The fixed platform is located between the test platform and the support frame. A hole is opened in the center of the fixed platform, and a material blocking mechanism is provided at the upper end of the fixed platform.

[0012] A weight, which is installed at the upper end of the material-blocking mechanism;

[0013] A winding mechanism is provided at the lower end of the support frame, and the winding mechanism is used to retract the weight.

[0014] Furthermore, the winding mechanism has a mounting plate fixedly installed at the lower end of the support frame. A winding wheel is fixedly installed on one side of the mounting plate. A nylon rope is fixedly installed on the weight. The other end of the nylon rope is wound up and fixed to the winding wheel. A drive motor is fixedly installed on the mounting plate. The output shaft of the drive motor is fixedly installed at the center end of the winding wheel.

[0015] Furthermore, the material blocking mechanism has two sets of bearing seats fixedly installed on the upper end of the fixed platform, and a connecting rod is rotatably connected between the two sets of bearing seats. The connecting rod has two sets of threaded grooves in opposite directions, and a first adjusting member and a second adjusting member are threadedly connected to the two sets of threaded grooves respectively. The weight is placed above the first adjusting member and the second adjusting member.

[0016] Furthermore, the first adjusting member has a nut threadedly connected to the threaded groove, and a baffle is fixedly installed on one side of the nut. The baffle is located directly above the hole, and the upper surfaces of both sets of baffles are inclined in opposite directions.

[0017] Furthermore, a geared motor is fixedly installed on the upper end of the fixed platform, and the geared motor is located on one side of the bearing seat.

[0018] Furthermore, a sliding plate is fixedly installed between the two sets of bearing seats, and a groove is provided on the side of the nut away from the baffle, and the groove is slidably connected to the sliding plate.

[0019] The beneficial effects of this application are as follows: The vehicle headlight cover testing fixture provided by this application is equipped with a material blocking mechanism and a winding mechanism. After the test is completed, the winding wheel is operated to retract the nylon rope until the weight is wound back to its original position. Then the material blocking mechanism is closed, and the winding wheel is adjusted to place the weight on the baffle. The nylon rope is then unwound until it falls onto the baffle for easy testing next time. Thus, after each headlight cover test, there is no need for manual collection and placement of the weight, ensuring automated use, improving work efficiency, and reducing manpower and material resources.

[0020] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is an overall schematic diagram of a vehicle lamp cover testing fixture according to this application;

[0023] Figure 2 for Figure 1 A separate enlarged schematic diagram of China Mobile's organizational structure;

[0024] Figure 3 for Figure 1 A separate schematic diagram of the central fixed platform;

[0025] Figure 4 for Figure 3 A schematic diagram of the exploded structure of the middle part;

[0026] The following are the labeling elements in the figure:

[0027] 1. Test stand; 11. Support frame; 12. Fixing platform; 13. Hole;

[0028] 2. Material stop mechanism; 21. Bearing housing; 22. Connecting rod; 23. Threaded groove; 24. Slide plate; 25. First adjusting component; 251. Nut; 252. Baffle; 253. Slide groove; 26. Second adjusting component; 27. Gear motor;

[0029] 3. Winding mechanism; 31. Winding reel; 32. Mounting plate; 33. Drive motor; 34. Nylon rope;

[0030] 4. Moving mechanism; 41. Slide rail; 42. Slider; 43. Base plate; 44. Handle;

[0031] 5. Lampshade; 6. Placement rack; 61. Groove; 7. Weight. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0034] like Figures 1-2 As shown, this application provides a testing fixture for vehicle lamp covers, including a test bench 1 and a support frame 11 fixed to the outer side of the upper end of the test bench 1. The test bench 1 is used to place the lamp cover 5 to be tested. The upper end of the test bench 1 is also provided with a moving mechanism 4, which is used to adjust and fix the position of the lamp cover 5 to facilitate testing of the lamp cover 5.

[0035] The moving mechanism 4 has a slide rail 41 fixedly installed on the upper end of the test bench 1. A slider 42 is slidably connected to the upper end of the slide rail 41. A base plate 43 is fixedly installed on the upper end of the slider 42. Therefore, the base plate 43 can slide on the slide rail 41 through the slider 42.

[0036] Meanwhile, a placement rack 6 is fixedly installed on the upper end of the base plate 43. The placement rack 6 is detachable and replaceable, and a groove 61 is provided on the placement rack 6. The shape of the groove 61 is consistent with that of the lampshade 5. Therefore, when installing the lampshade 5, it can be placed and snapped into the groove 61.

[0037] Furthermore, a handle 44 is fixedly installed on one side of the base plate 43, which allows the base plate 43 to be easily pulled outward.

[0038] like Figure 1 and Figures 3-4 As shown, a fixed platform 12 is also fixedly installed on the upper end of the test platform 1. The fixed platform 12 is located between the test platform 1 and the support frame 11. A hole 13 is opened at the center of the fixed platform 12, and a material blocking mechanism 2 is also provided on the upper end of the fixed platform 12. The material blocking mechanism 2 has two sets of bearing seats 21 fixedly installed on the upper end of the fixed platform 12. A connecting rod 22 is rotatably connected between the two sets of bearing seats 21. In this application, two sets of threaded grooves 23 with opposite directions are opened on the connecting rod 22. A first adjusting member 25 and a second adjusting member 26 are respectively threadedly connected to the two sets of threaded grooves 23. It should be noted that the first adjusting member 25 and the second adjusting member 26 have the same structure. For ease of understanding, the following description takes the first adjusting member 25 as an example. Specifically:

[0039] The first adjusting member 25 has a nut 251 threadedly connected to the threaded groove 23. A baffle 252 is fixedly installed on one side of the nut 251. The baffle 252 is located directly above the hole 13. It should be noted that when the first adjusting member 25 and the second adjusting member 26 are in the initial position, the two sets of baffles 252 are in a close contact state. At the same time, a reduction motor 27 is fixedly installed on the upper end of the fixed platform 12. The reduction motor 27 is located on one side of the bearing seat 21, and the output shaft of the reduction motor 27 is fixedly installed between the connecting rod 22.

[0040] To improve the stability of the movement of the baffle 252, a sliding plate 24 is fixedly installed between the two sets of bearing seats 21, and a groove 253 is provided on the side of the nut 251 away from the baffle 252. The groove 253 is slidably connected to the sliding plate 24. Therefore, when the reduction motor 27 starts and drives the connecting rod 22 to rotate, the nut 251 will move outward along the sliding plate 24, causing the baffle 252 to move outward horizontally.

[0041] Furthermore, a weight 7 is placed above the first adjusting member 25 and the second adjusting member 26. Therefore, when the lampshade 5 is subjected to an impact strength test, the reduction motor 27 is started to drive the connecting rod 22 to rotate. At the same time, the first adjusting member 25 and the second adjusting member 26 open outwards simultaneously. At this time, the weight 7 will fall downwards with gravity and pass through the hole 13 until it falls onto the lampshade 5, thereby completing the impact strength test of the lampshade 5.

[0042] In this application, the upper surfaces of the two sets of baffles 252 are inclined in opposite directions, so that the weight 7 slides towards the middle of the baffle 252 when it falls, and will not move with the baffle 252.

[0043] To facilitate the retrieval and reuse of the weight 7, a winding mechanism 3 is provided at the lower end of the support frame 11. The winding mechanism 3 has a mounting plate 32 fixedly installed at the lower end of the support frame 11. A winding wheel 31 is fixedly installed on one side of the mounting plate 32, and a nylon rope 34 is fixedly installed on the weight 7. The other end of the nylon rope 34 is wound up and fixed to the winding wheel 31. A drive motor 33 is also fixedly installed on the mounting plate 32. The output shaft of the drive motor 33 is fixedly installed at the center end of the winding wheel 31. Therefore, the drive motor 33 can drive the winding wheel 31 to rotate, and perform winding and unwinding operations on the nylon rope 34.

[0044] In this application, the drive motor 33 and the geared motor 27 are controlled by a PLC program.

[0045] In summary: When testing the impact strength of the lampshade 5, first adjust the baffle mechanism 2 so that the first adjusting member 25 and the second adjusting member 26 are in contact, then start the drive motor 33 to make the winding wheel 31 rotate so that the nylon rope 34 is completely unwound and falls freely onto the baffle 252.

[0046] Then, the baffle 252 is opened by adjusting the baffle mechanism 2, and then the weight 7 falls freely under gravity until it falls onto the lampshade 5 for impact strength testing.

[0047] After the test is completed, the take-up wheel 31 is operated to retract the nylon rope 34 until the weight 7 is rewound and reset. Then the material stop mechanism 2 is closed so that the first adjusting member 25 and the second adjusting member 26 are put into contact again.

[0048] At this point, adjust the take-up wheel 31 to place the weight 7 on the baffle 252, and unwind the nylon rope 34 until it falls onto the baffle 252 for easy testing next time. Thus, after each test of the lampshade 5, there is no need to manually retrieve and place the weight 7, ensuring automated use, improving work efficiency, and reducing manpower and material resources.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing fixture for vehicle headlight covers, characterized in that: include: Test bench (1), with a support frame (11) provided on the outer side of the upper end of the test bench (1); A moving mechanism (4) is provided at the upper end of the test platform (1), and the moving mechanism (4) is used to adjust and fix the position of the lampshade; A fixed platform (12) is installed on the upper end of the test platform (1). The fixed platform (12) is located between the test platform (1) and the support frame (11). A hole (13) is opened at the center of the fixed platform (12). A material blocking mechanism (2) is provided at the upper end of the fixed platform (12). Weight (7), which is installed at the upper end of the material blocking mechanism (2); A winding mechanism (3) is provided at the lower end of the support frame (11) and is used to retract the weight (7); The winding mechanism (3) has a mounting plate (32) fixedly installed at the lower end of the support frame (11). A winding wheel (31) is fixedly installed on one side of the mounting plate (32). A nylon rope (34) is fixedly installed on the weight (7). The other end of the nylon rope (34) is wound up and fixed on the winding wheel (31). A drive motor (33) is fixedly installed on the mounting plate (32). The output shaft of the drive motor (33) is fixedly installed at the center end of the winding wheel (31). The drive motor (33) is adapted to drive the winding wheel (31) to rotate, and to perform winding and unwinding operations on the nylon rope (34).

2. The testing fixture for vehicle lamp covers according to claim 1, characterized in that: The material blocking mechanism (2) has two sets of bearing seats (21) fixedly installed on the upper end of the fixed platform (12). A connecting rod (22) is rotatably connected between the two sets of bearing seats (21). Two sets of threaded grooves (23) with opposite directions are opened on the connecting rod (22). A first adjusting member (25) and a second adjusting member (26) are respectively threaded onto the two sets of threaded grooves (23). The weight (7) is placed above the first adjusting member (25) and the second adjusting member (26).

3. The testing fixture for vehicle lamp covers according to claim 2, characterized in that: The first adjusting member (25) has a nut (251) threadedly connected to the threaded groove (23). A baffle (252) is fixedly installed on one side of the nut (251). The baffle (252) is located directly above the hole (13). The upper surfaces of the two sets of baffles (252) are inclined in opposite directions.

4. The testing fixture for vehicle lamp covers according to claim 3, characterized in that: A geared motor (27) is fixedly installed on the upper end of the fixed platform (12), and the geared motor (27) is located on one side of the bearing seat (21).

5. The testing fixture for vehicle lamp covers according to claim 4, characterized in that: A sliding plate (24) is fixedly installed between the two sets of bearing seats (21). A groove (253) is provided on the side of the nut (251) away from the baffle (252), and the groove (253) is slidably connected to the sliding plate (24).

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