Device for testing optical vibration characteristics of automobile rearview mirror

Abstract

The utility model discloses an automobile rearview mirror optical vibration characteristic testing device, which relates to the technical field of automobile rearview mirror vibration testing and comprises a hollow vibration disc and a clamping assembly used for stably clamping a plurality of automobile rearview mirrors at the same time. And the clamping assembly comprises a plurality of rotating shafts which are rotationally connected with the inner wall of the hollow vibration disc and are in an annular array, straight gears and discs are installed on the outer walls and the top ends of the rotating shafts correspondingly, and gear rings are connected between the multiple rotating shafts in an engaged mode. According to the utility model, the L-shaped rods at the periphery of each housing extend or retract synchronously, so that a plurality of automobile rearview mirrors can be clamped or taken down at the same time, optical vibration characteristics of a large number of automobile rearview mirrors can be tested at the same time, and the test efficiency is improved; and the problem that the accuracy of a test result is affected due to the fact that a screw rod of an existing automobile rearview mirror vibration test table is easy to loosen in the vibration process and falls off after clamping is loosened in the vibration test is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile rearview mirror vibration testing, in particular to a testing device for the optical vibration characteristics of an automobile rearview mirror. Background Art

[0002] With the development of automobile manufacturing industry, the requirements for automobile rearview mirrors are getting higher and higher. After manufacturing automobile rearview mirrors, a vibration testing mechanism will be used to test the vibration resistance of automobile rearview mirrors. When testing the vibration resistance of automobile rearview mirrors, the automobile rearview mirrors will be placed in the vibration testing mechanism, and the vibration motor in the mechanism will be used to drive the mechanism to vibrate, and the automobile rearview mirror placed in the mechanism will vibrate accordingly. Then the automobile rearview mirror will be powered on for testing to observe the vibration resistance of the automobile rearview mirror; however.

[0003] A Chinese patent with patent number CN202223070409.X discloses a vehicle rearview mirror vibration test bench, which includes a vibration seat, a vibration motor is installed in the middle of the vibration seat, and a seat groove is opened on the middle bottom end wall of the vibration seat, a support is installed on the inner side of the seat groove, and a power box is installed inside the support, a support plate is placed on the bottom end of the support, and screws are passed through the end wall of the support plate, seat openings are opened on the left and right end walls of the vibration seat, and a pressing mechanism is installed on the inner side of the seat opening, the vibration motor is operated to drive the vibration seat to vibrate, and the vibrating vibration seat drives the vehicle rearview mirror placed in the seat opening to vibrate, and the vibration of the vehicle rearview mirror is used to detect the vibration resistance of the rearview mirror.

[0004] However, in the implementation of relevant technologies, it was found that the above-designed automobile rearview mirror vibration test bench has the following problems: because it simply limits the automobile rearview mirror by rotating the screw and the screw, the screw and the screw are prone to loosening during the vibration process and falling off after the clamping is loose, which affects the accuracy of the test results. At the same time, it is difficult to test multiple automobile rearview mirrors at the same time. There are many limitations. In view of this, a test device for the optical vibration characteristics of automobile rearview mirrors is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a testing device for the optical vibration characteristics of a vehicle rearview mirror, so as to achieve the purpose of conveniently and simultaneously stably clamping and testing a plurality of vehicle rearview mirrors.

[0006] In order to solve the above technical problems, the utility model provides a testing device for the optical vibration characteristics of a car rearview mirror, comprising a hollow vibration disk and a clamping assembly for stably clamping multiple car rearview mirrors at the same time, the clamping assembly comprising multiple rotating shafts in a ring array rotatably connected to the inner wall of the hollow vibration disk, the outer wall and the top of the rotating shaft are respectively installed with spur gears and discs, and the multiple rotating shafts are meshed with gear rings. The outer wall of the rotating shaft is rotatably connected to a shell installed on the top of the hollow vibration disk, and L-shaped rods are inserted around the shell. A plurality of arc-shaped guide grooves are penetrated on the top of the disc, and the inner wall of the arc-shaped guide groove is slidably connected with a limiting cylinder connected to one end of the L-shaped rod, and a stepping servo motor with a driving end connected to one of the spur gears is installed at the bottom of the hollow vibration disk.

[0007] Furthermore, the disc and the limiting cylinder are both located inside the shell, and the gear ring is placed inside the hollow vibration disc and is rotatably connected between the inner top wall and the inner bottom wall of the hollow vibration disc.

[0008] Furthermore, the plurality of discs are respectively located directly above the plurality of spur gears, the rotating shaft is installed between the center of the bottom of the disc and the center of the top of the spur gear, and the driving end of the stepping servo motor is rotationally connected to the hollow vibration disc.

[0009] Furthermore, a vibration motor is installed on the top of the hollow vibration disk, a cam is installed on the driving end of the vibration motor, and the vibration motor is located at the center of the top of the hollow vibration disk.

[0010] Furthermore, a plurality of control buttons are installed on the outer wall of the hollow vibration disk, two of which are electrically connected to the step servo motor, and another control button is electrically connected to the vibration motor, and an elastic gasket is installed on one side of the top end of the L-shaped rod.

[0011] Furthermore, a power supply box is provided at the bottom of the hollow vibration disk, a damping telescopic rod and a shock-absorbing spring are installed between the power supply box and the hollow vibration disk, and the shock-absorbing spring is sleeved on the outside of the damping telescopic rod.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] 1. In the utility model, the L-shaped rods around each shell are extended or retracted synchronously, which is convenient for clamping or removing multiple automobile rearview mirrors at the same time, and convenient for testing the optical vibration characteristics of a large number of automobile rearview mirrors at the same time, thereby improving the test efficiency and avoiding the problem that the screw rod of the existing automobile rearview mirror vibration test bench is easy to loosen during the vibration process and fall off after the clamping is loose, thereby affecting the accuracy of the test results.

[0014] 2. In the utility model, the optical vibration characteristics of the automobile rearview mirror are tested when the vibration motor is working. By setting a plurality of control buttons, it is convenient to control the step servo motor and the vibration motor separately, making the operation more convenient and quick. A short pulse signal can be sent to the step servo motor by pressing one of the control buttons to drive it to rotate a short distance, thereby avoiding the problem of damage to the automobile rearview mirror due to excessive clamping due to excessive rotation distance. It is also convenient to gradually clamp the automobile rearview mirror, and the elasticity of the elastic gasket is used to further avoid the problem of damage to the automobile rearview mirror due to excessive clamping. At the same time, the friction between the L-shaped rod and the automobile rearview mirror is increased after deformation, ensuring more stable clamping, and avoiding the problem of loosening of the automobile rearview mirror during the optical vibration characteristics test and affecting the accuracy of the test after falling.

[0015] 3. In the utility model, a power supply box is provided for power-on testing of the automobile rearview mirror. By providing and utilizing the elastic reset principle of the shock-absorbing spring, the energy of impact is converted into elastic potential energy to reduce the transmission of impact. At the same time, the damping effect generated when the damping telescopic rod is extended and retracted is utilized to reduce the impact force, thereby absorbing the shock of the power supply box at the bottom of the hollow vibration plate, thereby preventing the power supply box from being damaged by vibration and extending the service life of the power supply box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a testing device for optical vibration characteristics of a vehicle rearview mirror according to the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a shell in a testing device for optical vibration characteristics of a rearview mirror of an automobile according to the utility model;

[0019] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0020] Figure 4 for Figure 2 A magnified view of the structure at point B.

[0021] Numbers in the figure:

[0022] 1. Hollow vibration plate;

[0023] 2. Clamping assembly; 201. Rotating shaft; 202. Spur gear; 203. Gear ring; 204. Housing; 205. L-shaped rod; 206. Disc; 207. Limiting cylinder; 208. Arc guide groove; 209. Stepping servo motor;

[0024] 3. Elastic gasket; 4. Vibration motor; 5. Outrigger; 6. Control button; 7. Power box; 8. Damping telescopic rod; 9. Shock-absorbing spring.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] An existing automobile rearview mirror vibration test bench has problems in actual application. Because it simply limits the automobile rearview mirror by rotating the screw and the screw, the screw and the screw are prone to loosening during the vibration process and falling off after the clamping is loose, which affects the accuracy of the test results. At the same time, it is difficult to test multiple automobile rearview mirrors at the same time, and there are many limitations.

[0030] Embodiment 1

[0031] Depend on Figure 1-Figure 4The utility model provides a testing device for the optical vibration characteristics of a vehicle rearview mirror.

[0032] Specifically, by Figure 1 , Figure 3 and Figure 4 Provided is a hollow vibration disk 1 and a clamping assembly 2 for simultaneously and stably clamping a plurality of automobile rearview mirrors, wherein the clamping assembly 2 comprises a plurality of rotating shafts 201 in a ring array rotatably connected to the inner wall of the hollow vibration disk 1, a spur gear 202 and a disc 206 are respectively installed on the outer wall and the top of the rotating shaft 201, a gear ring 203 is meshingly connected between the plurality of rotating shafts 201, the outer wall of the rotating shaft 201 is rotatably connected to a shell 204 installed on the top of the hollow vibration disk 1, an L-shaped rod 205 is inserted around the shell 204, a plurality of arc-shaped guide grooves 208 are penetrated through the top of the disc 206, a limiting cylinder 207 connected to one end of the L-shaped rod 205 is slidably connected to the inner wall of the arc-shaped guide groove 208, a stepping servo motor 209 whose driving end is connected to one of the spur gears 202 is installed at the bottom of the hollow vibration disk 1, and a plurality of legs 5 are installed at the bottom thereof to keep the stepping servo motor 209 away from the ground in order to increase the height of the hollow vibration disk 1;

[0033] The disc 206 and the limiting cylinder 207 are both located inside the shell 204, the toothed ring 203 is placed inside the hollow vibration disk 1 and is rotatably connected between the inner top wall and the inner bottom wall of the hollow vibration disk 1, the shell 204 protects the disc 206 and the limiting cylinder 207 therein, and prolongs the service life of the disc 206 and the limiting cylinder 207, and a plurality of balls are embedded at the bottom of the toothed ring 203. By setting the balls, the friction between the toothed ring 203 and the inner wall of the hollow vibration disk 1 is reduced, ensuring that the toothed ring 203 is in a stable state. The ring 203 rotates more smoothly in the hollow vibration disk 1; the material of the ball can be stainless steel, which can extend the service life of the ball and avoid rusting and affecting the effect of reducing friction; the multiple discs 206 are respectively located directly above the multiple spur gears 202, and the shaft 201 is installed between the center of the bottom of the disc 206 and the center of the top of the spur gear 202. The driving end of the stepping servo motor 209 is rotatably connected to the hollow vibration disk 1, and the multiple discs 206 are respectively connected to the multiple shafts 201. It is aligned with multiple spur gears 202 up and down to ensure that multiple car rearview mirrors can be clamped at the same time; when the stepper servo motor 209 is working, its driving end is rotatably connected to the hollow vibration disk 1 and drives the spur gear 202 to rotate; the driving end of the stepper servo motor 209 is controlled to rotate forward and reverse, thereby driving one of the spur gears 202 in the hollow vibration disk 1 to rotate, and the gear ring 203 is used to make the remaining spur gears 202 rotate synchronously, and then the disk 206 in the shell 204 is driven to rotate through the rotating shaft 201, and the arc-shaped guide groove 208 is used to limit and guide the limiting cylinder 207, so that the L-shaped rods 205 around each shell 204 are synchronously extended or retracted, so as to facilitate the simultaneous clamping or removal of multiple car rearview mirrors, and facilitate the simultaneous testing of the optical vibration characteristics of a large number of car rearview mirrors, thereby improving the test efficiency and avoiding the problem that the screw rod of the existing car rearview mirror vibration test bench is easy to loosen during the vibration process and fall off after the clamping is loose, thereby affecting the accuracy of the test results.

[0034] Embodiment 2

[0035] On the basis of the first embodiment, further, as a specific implementation of the present utility model, the present utility model provides a testing device for the optical vibration characteristics of a vehicle rearview mirror.

[0036] Specifically, by Figure 1 and Figure 3It is given that a vibration motor 4 is installed on the top of the hollow vibration disk 1, a cam is installed on the driving end of the vibration motor 4, the vibration motor 4 is located at the center of the top of the hollow vibration disk 1, and a plurality of control buttons 6 are installed on the outer wall of the hollow vibration disk 1, two of which are electrically connected to the step servo motor 209, and the other control button 6 is electrically connected to the vibration motor 4, an elastic gasket 3 is installed on one side of the top of the L-shaped rod 205, a power box 7 is provided at the bottom of the hollow vibration disk 1, a damping telescopic rod 8 and a shock-absorbing spring 9 are installed between the power box 7 and the hollow vibration disk 1, and the shock-absorbing spring 9 is sleeved on the outside of the damping telescopic rod 8;

[0037] When the vibration motor 4 is working, its driving end drives the cam to rotate, thereby vibrating the hollow vibration plate 1, and then testing the optical vibration characteristics of the car rearview mirror. By setting a plurality of control buttons 6, it is convenient to control the stepping servo motor 209 and the vibration motor 4 separately, making the operation more convenient and quick, and by pressing one of the control buttons 6, a short pulse signal can be sent to the stepping servo motor 209 to drive it to rotate a short distance, thereby avoiding the problem of damage to the car rearview mirror due to excessive rotation distance and excessive clamping, and facilitating the gradual clamping of the car rearview mirror, and utilizing the elasticity of the elastic gasket 3 to further avoid damage to the car rearview mirror due to excessive clamping. The problem of deformation is solved. At the same time, the friction between the L-shaped rod 205 and the car rearview mirror is increased after deformation, ensuring that the clamping is more stable, avoiding the car rearview mirror from loosening during the optical vibration characteristic test and affecting the accuracy of the test after falling; by setting a power box 7, it is used to power on the car rearview mirror for testing. By setting and utilizing the elastic reset principle of the shock-absorbing spring 9, the impact energy is converted into elastic potential energy to reduce the transmission of the impact. At the same time, the damping effect generated by the extension and retraction of the damping telescopic rod 8 is utilized to reduce the impact force, thereby absorbing the shock of the power box 7 at the bottom of the hollow vibration plate 1, avoiding the power box 7 from being damaged by vibration, and extending the service life of the power box 7.

[0038] Working principle:

[0039] The driving end of the step servo motor 209 is controlled to rotate forward and reverse, thereby driving one of the spur gears 202 in the hollow vibration disk 1 to rotate, and the gear ring 203 is used to make the other spur gears 202 rotate synchronously, and then the disk 206 in the shell 204 is driven to rotate through the rotating shaft 201, and the arc-shaped guide groove 208 is used to limit and guide the limiting cylinder 207, so that the L-shaped rods 205 around each shell 204 are synchronously extended or retracted, so as to facilitate the clamping or removal of multiple automobile rearview mirrors at the same time, and facilitate the optical vibration characteristics testing of a large number of automobile rearview mirrors at the same time, thereby improving the test efficiency and avoiding the problem that the screw rod of the existing automobile rearview mirror vibration test bench is easy to loosen during the vibration process and fall off after the clamping is loose, thereby affecting the accuracy of the test results.

[0040] When the vibration motor 4 is working, its driving end drives the cam to rotate, thereby vibrating the hollow vibration plate 1, and then testing the optical vibration characteristics of the car rearview mirror. By setting a plurality of control buttons 6, it is convenient to control the stepping servo motor 209 and the vibration motor 4 separately, making the operation more convenient and quick, and by pressing one of the control buttons 6, a short pulse signal can be sent to the stepping servo motor 209 to drive it to rotate a short distance, thereby avoiding the problem of damage to the car rearview mirror due to excessive rotation distance and excessive clamping, and facilitating the gradual clamping of the car rearview mirror, and utilizing the elasticity of the elastic gasket 3 to further avoid damage to the car rearview mirror due to excessive clamping. The problem of deformation is solved. At the same time, the friction between the L-shaped rod 205 and the car rearview mirror is increased after deformation, ensuring that the clamping is more stable, avoiding the car rearview mirror from loosening during the optical vibration characteristic test and affecting the accuracy of the test after falling; by setting a power box 7, it is used to power on the car rearview mirror for testing. By setting and utilizing the elastic reset principle of the shock-absorbing spring 9, the impact energy is converted into elastic potential energy to reduce the transmission of the impact. At the same time, the damping effect generated by the extension and retraction of the damping telescopic rod 8 is utilized to reduce the impact force, thereby absorbing the shock of the power box 7 at the bottom of the hollow vibration plate 1, avoiding the power box 7 from being damaged by vibration, and extending the service life of the power box 7.

[0041] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A test device for optical vibration characteristics of a rearview mirror of an automobile, comprising: Hollow vibrating plate (1); A clamping assembly (2) for stably clamping a plurality of automobile rearview mirrors at the same time; The clamping assembly (2) is characterized in that the clamping assembly (2) comprises a plurality of rotating shafts (201) in an annular array and rotatably connected to the inner wall of the hollow vibration disk (1); the outer wall and the top of the rotating shaft (201) are respectively installed with a spur gear (202) and a disc (206); a gear ring (203) is meshedly connected between the plurality of rotating shafts (201); the outer wall of the rotating shaft (201) is rotatably connected to a shell (204) installed on the top of the hollow vibration disk (1); L-shaped rods (205) are inserted around the shell (204); a plurality of arc-shaped guide grooves (208) are penetrated through the top of the disc (206); the inner wall of the arc-shaped guide groove (208) is slidably connected with a limiting cylinder (207) connected to one end of the L-shaped rod (205); and a stepping servo motor (209) whose driving end is connected to one of the spur gears (202) is installed at the bottom of the hollow vibration disk (1).

2. A testing device for optical vibration characteristics of a vehicle rearview mirror according to claim 1, characterized in that: The disc (206) and the limiting cylinder (207) are both located inside the shell (204), and the toothed ring (203) is placed inside the hollow vibration disc (1) and is rotatably connected between the inner top wall and the inner bottom wall of the hollow vibration disc (1).

3. A testing device for optical vibration characteristics of a vehicle rearview mirror according to claim 2, characterized in that: The plurality of circular disks (206) are respectively located directly above the plurality of spur gears (202); the rotating shaft (201) is installed between the center of the bottom of the circular disk (206) and the center of the top of the spur gear (202); and the driving end of the stepping servo motor (209) is rotationally connected to the hollow vibration disk (1).

4. A testing device for optical vibration characteristics of a vehicle rearview mirror according to claim 3, characterized in that: A vibration motor (4) is installed on the top of the hollow vibration disk (1), a cam is installed on the driving end of the vibration motor (4), and the vibration motor (4) is located at the center of the top of the hollow vibration disk (1).

5. The device for testing the optical vibration characteristics of a rearview mirror of a vehicle according to claim 4, characterized in that: A plurality of control buttons (6) are installed on the outer wall of the hollow vibration disk (1), two of which are electrically connected to the step servo motor (209), and another of which is electrically connected to the vibration motor (4). An elastic gasket (3) is installed on one side of the top end of the L-shaped rod (205).

6. The device for testing the optical vibration characteristics of a rearview mirror of a vehicle according to claim 5, characterized in that: A power supply box (7) is arranged at the bottom of the hollow vibration plate (1), a damping telescopic rod (8) and a shock absorbing spring (9) are installed between the power supply box (7) and the hollow vibration plate (1), and the shock absorbing spring (9) is sleeved on the outside of the damping telescopic rod (8).

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