A car rearview mirror rotation fatigue detection test bench

Abstract

A rotating fatigue detection test bench for automobile rearview mirrors comprises a frame, on which a control unit and an angle adjustment unit fixedly connected to a base of an automobile rearview mirror are fixedly connected, and a swing angle detection unit for elastically clamping the automobile rearview mirror is rotatably connected to the frame; the swing angle detection unit comprises a motor, a crank and a drive box, wherein the motor is fixedly mounted on the frame, and the output shaft of the motor is connected to the bottom plate of the drive box through the crank for circumferential rotation limit and radial sliding fit; a foam rubber adding port is provided on the top of the drive box, and an anti-adhesive film layer is attached to the inner wall of the drive box; the inside of the drive box covered with the anti-adhesive film layer is filled with a foam rubber layer for elastically supporting the automobile rearview mirror. The test bench can buffer and clamp automobile rearview mirror shells of different models and sizes, effectively solve the collision and friction problems between the detection equipment and the rearview mirror shell, avoid the adverse effects of collision and friction on the detection accuracy and car paint, and is widely applicable to the rotation durability detection of various models of automobile rearview mirrors.

Description

Technical Field

[0001] The invention relates to the field of detection technology, and in particular to a rotation fatigue detection test bench for automobile rearview mirrors. Background Art

[0002] As an important safety component of automobiles, automobile rearview mirrors have become a national mandatory inspection item. Although the folding performance is not a mandatory safety inspection experiment, the safety and reliability of the rearview mirror can be increased through testing. Through the folding durability test of the rearview mirror, the quality of the connecting axis between the rearview mirror and the vehicle body can be evaluated.

[0003] In the existing automotive rearview mirror durability testing equipment, the rearview mirror base is usually fixed during testing, and then the rearview mirror housing is repeatedly moved with a lever or a dial wheel, thereby achieving the effect of repeatedly folding the automotive rearview mirror to test its folding durability. However, the above testing equipment has the following defects: no matter the lever or dial wheel in the existing technology moves the rearview mirror housing, a microscopic impact will occur, and the microscopic impact will be transmitted to the hinge shaft of the rearview mirror, resulting in a decrease in the accuracy of the hinge shaft folding durability test. On the other hand, repeated collisions with the rearview mirror housing will leave scratches on the housing surface, damaging the integrity of the car paint.

[0004] Therefore, how to use a rearview mirror rotation durability detection device to solve the impact and friction problem between the lever and the rearview mirror housing is an urgent problem to be solved by those skilled in the art.

[0005] Through public patent search, the following comparative documents were found:

[0006] A rearview mirror folding durability test device (CN210375653U) discloses a rearview mirror folding durability test device, including a frame, a left folding fixture and a right folding fixture, a small stand is placed on the frame, a left folding fixture for folding the left rearview mirror and a right folding fixture for folding the right rearview mirror are installed on the working table of the small stand, and a driving mechanism for driving the left folding fixture and the right folding fixture to rotate are installed at the bottom of the left folding fixture and the right folding fixture. Its beneficial effects are: it can simultaneously meet the folding durability test of the left and right rearview mirrors, thereby reducing the manual workload and improving the test efficiency; it is simple to operate and can avoid damaging the rearview mirror.

[0007] After analysis, the above-mentioned public patent is different from the technical solution and implementation function of the present application, and therefore does not affect the novelty of the present application. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a car rearview mirror rotation fatigue detection test bench, which can buffer and clamp car rearview mirror shells of different models and sizes, effectively solving the impact and friction problems between the detection equipment and the rearview mirror shells, avoiding the adverse effects of impact and friction on the detection accuracy and car paint, and is widely applicable to rotation durability detection of various models of car rearview mirrors.

[0009] A vehicle rearview mirror rotation fatigue detection test bench comprises a frame, a control unit and a tilt adjustment unit fixedly connected to a vehicle rearview mirror base are fixedly connected to the frame, and a swing angle detection unit elastically clamped to the frame is rotatably connected; the swing angle detection unit comprises a motor, a crank and a drive box, wherein the motor is fixedly mounted on the frame, and the output shaft of the motor is connected to the bottom plate of the drive box through the crank in circumferential rotation limiting and radial sliding cooperation; a foam glue adding port is opened on the top of the drive box, and an anti-sticking film layer is attached to the inner wall of the drive box; the interior of the drive box covered with the anti-sticking film layer is filled with a foam glue layer elastically supporting the vehicle rearview mirror.

[0010] Moreover, the inclination adjustment unit includes a hinged plate and vertical plates symmetrically arranged at both ends of the hinged plate, wherein the vertical plates are vertically fixed on the top surface of the frame, and the upper part of the vertical plates is formed with arc-shaped limiting long holes; the bottom of the hinged plate is hingedly connected to the top surface of the frame, and both ends of the hinged plate are threadedly connected with adjustment bolts guided by the inner wall of the arc-shaped limiting long hole for sliding, the middle part of the hinged plate is fixedly connected to the base of the automobile rearview mirror, and a counting sensor facing the drive box is installed on one side surface of the hinged plate.

[0011] Moreover, the control unit comprises a fixing plate fixedly mounted on the frame, on which a controller is fixedly mounted; the controller is electrically connected to the motor and the counting sensor.

[0012] Moreover, the crank includes a horizontal rod and a vertical rod, wherein one end of the horizontal rod is fixedly connected to the output shaft of the motor, and an adaptive long hole extending radially along the output shaft of the motor is formed in the middle of the horizontal rod; the top of the vertical rod is fixedly connected to the bottom plate of the drive box, and the bottom of the vertical rod penetrates downwardly through the adaptive long hole and is slidably connected to the inner wall of the adaptive long hole.

[0013] Moreover, a sealing door is hingedly connected on one side wall of the driving box, and a sealing hole for passing the automobile rearview mirror and sealingly connected with the outer wall of the automobile rearview mirror is formed on the other side wall of the driving box.

[0014] The advantages and technical effects of the present invention are:

[0015] A vehicle rearview mirror rotation fatigue detection test bench of the present invention provides main body support for the detection test bench through a frame; a swing angle detection unit on the frame is used for buffering and clamping the shell of the vehicle rearview mirror for positioning; during the buffering and clamping positioning, a foam rubber layer in a drive box and the rearview mirror shell form a flexible connection, which is closer to the real scene of manually driving the rearview mirror and improves the accuracy of the detection; an inclination adjustment unit is used for adjusting the inclination angle of the vehicle rearview mirror shell and the rearview mirror base, which can be used to adapt and install vehicle rearview mirrors and rearview mirror bases of different models and sizes on the one hand, and on the other hand, can adjust the friction between the rearview mirror shell and the rearview mirror base, thereby performing accelerated fatigue testing; finally, a control unit is used for collecting counting sensor data and controlling the operation of a motor.

[0016] The invention discloses a vehicle rearview mirror rotation fatigue detection test bench, which adjusts the installation inclination angle of the rearview mirror base by means of a hinged plate hingedly connected to the top surface of a frame, provides a flipping guide for the hinged plate by means of an adaptive long hole on a vertical plate, and finally positions and tightens the inclination angle by means of adjusting bolts at both ends of the hinged plate.

[0017] The present invention discloses a car rearview mirror rotation fatigue detection test bench, in which a horizontal rod and a vertical rod are used to form a crank. It should be noted that the output shaft of the motor and the rotating shaft of the rearview mirror are not coaxially arranged. Therefore, when the motor drives the crank to provide the drive box with rotational power with the rotating shaft of the rearview mirror as the center, the horizontal rod and the vertical rod will inevitably produce relative sliding displacement. Therefore, the present invention is designed so that the motor drives the horizontal rod to rotate on the horizontal plane, and the adaptive long hole on the horizontal rod provides the vertical rod with swinging power and sliding guide. This design solves the problem of self-locking rotation when the output shaft of the motor and the rotating shaft of the rearview mirror are not coaxial, and also avoids any structure on the test bench from colliding with the rearview mirror housing. The detection accuracy is significantly higher than that of the prior art, and the vehicle paint will not be damaged. The test bench is a car rearview mirror rotation fatigue detection test bench with high creativity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle (sealed door not installed);

[0020] In the figure: 1-sealing door; 2-hinge plate; 3-adjusting bolt; 4-arc-shaped limit long hole; 5-vertical plate; 6-controller; 7-fixing plate; 8-frame; 9-foam glue adding port; 10-drive box; 11-foam glue layer; 12-rearview mirror base; 13-rearview mirror; 14-sealing hole; 15-anti-stick film layer; 16-vertical rod; 17-horizontal rod; 18-motor; 19-adaptive long hole. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings. It should be noted that the embodiments are illustrative, not restrictive, and the protection scope of the present invention cannot be limited thereby.

[0022] A vehicle rearview mirror rotation fatigue detection test bench comprises a frame 8, to which a control unit and a tilt adjustment unit fixedly connected to a vehicle rearview mirror base 12 are fixedly connected, and a swing angle detection unit rotatably connected to an elastically clamped vehicle rearview mirror 13 is rotatably connected to the frame; the swing angle detection unit comprises a motor 18, a crank and a drive box 10, wherein the motor is fixedly mounted on the frame, and the output shaft of the motor is connected to the bottom plate of the drive box by the crank through circumferential rotation limiting and radial sliding fit; a foam glue adding port 9 is opened on the top of the drive box, and an anti-sticking film layer 15 is attached to the inner wall of the drive box; the interior of the drive box covered with the anti-sticking film layer is filled with a foam glue layer 11 for elastically supporting the vehicle rearview mirror.

[0023] Moreover, the inclination adjustment unit includes a hinged plate 2 and vertical plates 5 symmetrically arranged at both ends of the hinged plate, wherein the vertical plates are vertically fixed on the top surface of the frame, and the upper part of the vertical plates is formed with arc-shaped limiting long holes 4; the bottom of the hinged plate is hingedly connected to the top surface of the frame, and both ends of the hinged plate are threadedly connected with adjustment bolts 3 guided by the inner wall of the arc-shaped limiting long hole. The middle part of the hinged plate is fixedly connected to the base of the automobile rearview mirror, and a counting sensor facing the drive box is installed on one side surface of the hinged plate.

[0024] Furthermore, the control unit comprises a fixing plate 7 fixedly mounted on the frame, on which a controller 6 is fixedly mounted; the controller is electrically connected to the motor and the counting sensor.

[0025] Moreover, the crank includes a horizontal rod 17 and a vertical rod 16, wherein one end of the horizontal rod is fixedly connected to the output shaft of the motor, and an adaptive long hole 19 extending radially along the output shaft of the motor is formed in the middle of the horizontal rod; the top of the vertical rod is fixedly connected to the bottom plate of the drive box, and the bottom of the vertical rod penetrates downwardly through the adaptive long hole and is slidably connected with the inner wall of the adaptive long hole.

[0026] Moreover, a sealing door 1 is hingedly connected to one side wall of the driving box, and a sealing hole 14 for passing the automobile rearview mirror and sealingly connected to the outer wall of the automobile rearview mirror is formed on the other side wall of the driving box.

[0027] In addition, in the present invention, preferably, the controller, the counting sensor and the motor are all mature products in the prior art.

[0028] In addition, in the present invention, preferably, the sealing connection between the sealing door and the sealing hole and the driving box body adopts mature technical means in the prior art.

[0029] In order to more clearly illustrate the specific implementation of the present invention, an embodiment is provided below in conjunction with the accompanying drawings:

[0030] like Figure 1 As shown, during the inspection, the rearview mirror base must be fixed on the hinged plate first. When installing the rearview mirror base, it is necessary to place a level on the shaft connecting the rearview mirror base and the rearview mirror, then loosen the adjustment bolt and flip the hinged plate. When the level shows that the top surface of the shaft is completely horizontal, tighten the adjustment bolt; then open the sealing door of the drive box, apply an anti-sticking film layer on the inner wall of the drive box, and then pass the shaft of the rearview mirror from the sealing hole of the drive box to the inside of the drive box, then close the sealing door, and finally fill the inside of the drive box with a foam layer through the foam adding port on the top of the drive box. When the foam layer fills the inside of the drive box and solidifies and fixes it, start the motor. The motor drives the horizontal rod to rotate on the horizontal plane, and the horizontal rod drives the vertical rod and the drive box to reciprocate and swing on the horizontal plane. When the drive box swings to the specified position, the counting sensor is triggered, and the counting sensor records a reciprocating swing movement of the drive box.

[0031] It should be noted that when conducting accelerated fatigue tests, the inclination angle of the hinged plate can be adjusted as needed to increase the friction between the rearview mirror base and the rearview mirror connection shaft, thereby improving the rotational endurance test strength and appropriately shortening the test time.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A vehicle rearview mirror rotation fatigue detection test bench, characterized in that: The invention comprises a frame, a control unit and a tilt adjustment unit fixedly connected to a rearview mirror base are fixedly connected to the frame, and a swing angle detection unit elastically clamped to the rearview mirror is rotatably connected to the frame; the swing angle detection unit comprises a motor, a crank and a drive box, wherein the motor is fixedly mounted on the frame, and the output shaft of the motor is connected to the bottom plate of the drive box through the crank in a circumferential rotation limit and radial sliding fit; a foaming glue adding port is provided on the top of the drive box, and an anti-sticking film layer is attached to the inner wall of the drive box; a foaming glue layer elastically supporting the rearview mirror of the car is filled inside the drive box covered by the anti-sticking film layer; The tilt adjustment unit comprises a hinged plate and vertical plates symmetrically arranged at both ends of the hinged plate, wherein the vertical plates are vertically fixed on the top surface of the frame, and arc-shaped limiting long holes are formed on the upper parts of the vertical plates; the bottom of the hinged plate is hingedly connected to the top surface of the frame, and both ends of the hinged plate are threadedly connected with adjustment bolts guided by the inner wall of the arc-shaped limiting long hole, the middle part of the hinged plate is fixedly connected to the automobile rearview mirror base, and a counting sensor facing the drive box is installed on one side of the hinged plate; The control unit comprises a fixing plate fixedly mounted on the frame, on which a controller is fixedly mounted; the controller is electrically connected to the motor and the counting sensor.

2. The automobile rearview mirror rotation fatigue detection test bench according to claim 1, characterized in that: The crank includes a horizontal rod and a vertical rod, wherein one end of the horizontal rod is fixedly connected to the output shaft of the motor, and an adaptive long hole extending radially along the output shaft of the motor is formed in the middle of the horizontal rod; the top of the vertical rod is fixedly connected to the bottom plate of the drive box, and the bottom of the vertical rod penetrates downwardly through the adaptive long hole and is slidably connected to the inner wall of the adaptive long hole.

3. The automobile rearview mirror rotation fatigue detection test bench according to claim 1, characterized in that: A sealing door is hingedly connected on one side wall of the driving box, and a sealing hole is formed on the other side wall of the driving box to pass through the automobile rearview mirror and is sealedly connected to the outer wall of the automobile rearview mirror.

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