A vehicle rearview mirror detection device and its detection method

Abstract

The present invention relates to the technical field of automotive rearview mirror detection, and particularly relates to a vehicle rearview mirror detection device and its detection method, including: a fixed frame and a test component; the test component includes a folding drive seat, a second sliding seat, a first sliding seat, and a drive component arranged in sequence from top to bottom. The first sliding seat slides along a first direction, the second sliding seat slides along a second direction, and the folding drive seat is rotatably arranged on the second sliding seat through a rotating shaft; two support arms are provided at the bottom of the second sliding seat, and two sliding grooves for the two support arms to slide are provided above the first sliding seat. Needle roller rows are provided at the bottom of the support arms, and at least two spring plungers and a plurality of pressure plates are arranged on the side wall of the support arm facing the sliding groove. Through the setting of the test component, the labor intensity is reduced, the test efficiency is improved, and through the setting of the spring plungers and the pressure plates, the folding force can be accurately measured, avoiding the subjectivity of manual testing and effectively ensuring the consistency of product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive rearview mirror detection, and particularly to a vehicle rearview mirror detection device and a detection method thereof. Background Art

[0002] Automotive rearview mirrors are important safety components during vehicle driving. Drivers can observe the situations behind, on the sides, and below the vehicle through the rearview mirrors, thus ensuring safe driving.

[0003] During the production process of rearview mirrors, the hinge shafts of rearview mirrors are assembled by press-fitting. After the press-fitting is completed, manual rotation of adjustment screws is used to adjust the locking degree of the hinge shafts, so that the folding force of the rearview mirrors meets the usage requirements. However, after the adjustment is completed, the rearview mirrors are manually folded and unfolded multiple times to ensure smooth operation. This testing method not only has a large labor intensity and consumes a long time, seriously affecting production efficiency, but also due to individual differences and subjectivity of manual labor, it is difficult to ensure the consistency of product quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a vehicle rearview mirror detection device and a detection method thereof, which can effectively solve the problems in the background art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a vehicle rearview mirror detection device and a detection method thereof, including: a fixed frame, and a testing component arranged on one side of the fixed frame;

[0006] The testing component includes a folding driving seat, a second sliding seat, a first sliding seat, and a driving component arranged in sequence from top to bottom. The driving component is used to drive the first sliding seat to slide along a first direction, the second sliding seat slides along a second direction perpendicular to the first direction, and the folding driving seat is rotatably arranged on the second sliding seat through a rotating shaft;

[0007] Two support arms are arranged at the bottom of the second sliding seat. Two sliding grooves for the two support arms to slide are arranged above the first sliding seat. Needle roller rows are arranged at the bottom of the support arms, and at least two spring plungers and a plurality of pressure plates are arranged on the side wall of the support arm facing the sliding groove;

[0008] During testing, the side wall of the sliding groove on one side of the first sliding seat squeezes a plurality of spring plungers on the same-side support arm. The side wall of the sliding groove abuts against the pressure plates, and the average value of the pressures of the plurality of pressure plates is compared with a set threshold value to determine whether the folding force of the rearview mirror needs to be adjusted.

[0009] Further, the folding driving seat includes a semi-closed frame, a positioning block, and a clamping shaft;

[0010] The positioning block is arranged on the lower support surface of the semi-closed frame, and a profiling surface that fits the bottom of the rearview mirror is provided on the upper surface of the positioning block;

[0011] The clamping shaft is arranged above the semi-closed frame, and its end extends into the semi-closed frame and clamps the rearview mirror mounting frame with the profiling surface.

[0012] Furthermore, a support sleeve arranged coaxially with the rotating shaft is also included;

[0013] The support sleeve is arranged on the second sliding seat. One end of the rotating shaft is fixed on the folding driving seat, and the other end is rotatably connected to the support sleeve through a bearing group.

[0014] Furthermore, the driving assembly includes a transmission seat, a lead screw nut group, and a driving motor;

[0015] The lead screw nut group is used to drive the transmission seat to move linearly;

[0016] The transmission seat is fixedly connected to the first sliding seat through bolts, and an adjustment hole for the bolts to pass through is provided on the first sliding seat, and the adjustment hole is arranged along the first direction.

[0017] Furthermore, centering and deviation correction components are arranged on both sides of the first sliding seat along the second direction;

[0018] The centering and deviation correction components include two adjustment cylinders and a distance sensor. The two adjustment cylinders are arranged at the front end and the rear end of the support arm;

[0019] A ball is arranged at the end of the driving rod of the adjustment cylinder and is used to adjust the distance between the support arm and the side wall of the sliding groove.

[0020] Furthermore, an angle sensor is arranged at one end of the rotating shaft far from the folding driving seat.

[0021] Furthermore, two groups of support components are arranged between the folding driving seat and the second sliding seat;

[0022] The two groups of support components are symmetrically arranged with the center of the rotating shaft as the center, and include guide wheels and arc-shaped guide rails for guiding the guide wheels to roll around the rotating shaft.

[0023] Furthermore, a limiting protrusion is arranged on the inner side of the support arm, and a limiting groove corresponding to the limiting protrusion is arranged on the sliding groove;

[0024] The distance between the end faces of the two limiting protrusions is greater than the distance between the bottoms of the two limiting grooves.

[0025] Further, the fixing bracket includes two bases and a mounting seat mounted on the two bases;

[0026] One side of the mounting seat is provided with a calibration mounting block, and a positioning pressure plate and a clamping arm are provided at one side edge of the calibration mounting block;

[0027] And a plurality of locking bolts are provided on the other side of the mounting seat.

[0028] The present invention also provides a method for detecting a vehicle rearview mirror, which uses the vehicle rearview mirror detecting device as described above, and includes the following steps:

[0029] Mount the rearview mirror on the folding drive seat to ensure that the rearview mirror is closely fitted with the folding drive seat;

[0030] Adjust the position of the second sliding seat so that the pressure plates on both sides do not contact the side wall of the sliding groove, and ensure that the spring plungers on both sides provide floating support for the second sliding seat;

[0031] Start the drive assembly to drive the first sliding seat to move in the first direction. The movement of the first sliding seat will apply pressure to the support arm on one side of the second sliding seat, so that the plurality of spring plungers on the support arm are squeezed. Until the end of the spring plunger is flush with the force-bearing surface of the pressure plate, the side wall of the sliding groove abuts against the plurality of pressure plates;

[0032] When the folding drive seat drives the rearview mirror to start moving, record the pressure values of the plurality of pressure plates, calculate the average pressure value of the plurality of pressure plates, and compare it with the set threshold. If the average pressure value is greater than the maximum set threshold, the folding force is too large and the hinge shaft needs to be adjusted in the unlocking direction; if the average pressure value is less than the minimum set threshold, the folding force is insufficient and the locking shaft needs to be adjusted in the locking direction, so as to ensure that the folding force of the rearview mirror meets the use requirements.

[0033] The beneficial effects of the present invention are as follows: Through the settings of the folding drive seat, the first sliding seat, the second sliding seat and the drive assembly, the present invention realizes the automatic test of the folding force of the rearview mirror, completely replaces the traditional manual folding and unfolding operations, reduces the labor intensity, improves the test efficiency, and through the settings of the spring plunger and the pressure plate, can measure the folding force in real time and accurately, avoids the subjectivity of manual testing, and effectively ensures the consistency of product quality.

[0034] Using the average pressure value of the plurality of pressure plates to evaluate the folding force further improves the reliability and stability of the measurement data and ensures the high precision of the folding force measurement. Description of the Drawings

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0036] Figure 1 Structural schematic diagram of the vehicle rearview mirror detection device in the embodiment of the present invention;

[0037] Figure 2 Front view of the vehicle rearview mirror detection device in the embodiment of the present invention;

[0038] Figure 3 Top view of the vehicle rearview mirror detection device in the embodiment of the present invention;

[0039] Figure 4 Structural schematic diagram of the test component in the embodiment of the present invention;

[0040] Figure 5 Installation schematic diagram of the spring plunger in the second sliding seat in the embodiment of the present invention;

[0041] Figure 6 Structural schematic diagram of the second sliding seat in the embodiment of the present invention;

[0042] Figure 7 Installation schematic diagram of the rotating shaft and the support sleeve in the embodiment of the present invention;

[0043] Figure 8 Structural schematic diagram of the support component in the embodiment of the present invention;

[0044] Figure 9 For Figure 5 Partial enlarged view of part A of

[0045] Figure 10 Structural schematic diagram of the fixing bracket in the embodiment of the present invention.

[0046] Reference numerals: 1, fixing bracket; 11, base; 12, mounting seat; 13, calibration mounting block; 14, positioning pressure plate; 15, clamping arm; 16, locking bolt; 2, test assembly; 2a, first direction; 2b, second direction; 21, folding drive seat; 211, semi-closed frame; 212, positioning block; 213, clamping shaft; 22, second sliding seat; 221, support arm; 221a, limiting protrusion; 23, first sliding seat; 231, chute; 232, adjusting hole; 24, drive assembly; 241, transmission seat; 242, lead screw nut group; 243, drive motor; 25, rotating shaft; 26, needle roller row; 27, spring plunger; 28, pressure plate; 29, support sleeve; 30, bearing group; 31, angle sensor; 32, support assembly; 321, guide wheel; 322, arc-shaped guide rail; 33, adjusting cylinder. Detailed implementation manner

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0048] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0050] As Figures 1 to 10 shown in the vehicle rearview mirror detection device, including: a fixing bracket 1 and a test assembly 2 provided on one side of the fixing bracket 1; the test assembly 2 includes a folding drive seat 21, a second sliding seat 22, a first sliding seat 23 and a drive assembly 24 arranged in sequence from top to bottom, and the drive assembly 24 is used to drive the first sliding seat 23 to slide along the first direction 2a, and the second sliding seat 22 slides along the second direction 2b perpendicular to the first direction 2a, and the folding drive seat 21 is rotatably arranged on the second sliding seat 22 through a rotating shaft 25;

[0051] The bottom of the second sliding seat 22 is provided with two support arms 221. Above the first sliding seat 23, there are two sliding grooves 231 for the two support arms 221 to slide. At the bottom of the support arms 221, there is a needle roller row 26. On the side wall of the support arms 221 facing the sliding grooves 231, there are at least two spring plungers 27 and a plurality of pressure plates 28;

[0052] During the test, the side wall of the sliding groove 231 on one side of the first sliding seat 23 squeezes a plurality of the spring plungers 27 on the support arm 221 on the same side, so that the balls of the spring plungers 27 are compressed. At this time, the end of the spring plunger 27 is lower than the plane of the pressure plate 28, and the side wall of the sliding groove 231 abuts against the pressure plate 28. Continue to drive the first sliding seat 23 until the rearview mirror begins to move initially, which is the maximum folding force required for the rearview mirror. At this time, synchronously obtain the pressures of a plurality of the pressure plates 28, and through calculation, obtain the average pressure of the plurality of the pressure plates 28, and compare it with the set threshold value to determine whether the folding force of the rearview mirror needs to be adjusted. It should be noted that the first direction 2a refers to the direction tangent to the circumference set by the folding radius of the rearview mirror and is parallel to the mounting surface on the mounting bracket of the rearview mirror, while the second direction 2b refers to the radial direction of the circumference when the rearview mirror is opened or folded and is perpendicular to the first direction 2a. In addition, the rearview mirror used in the test of the present invention is a semi-finished product, that is, the internal components are not installed, and it is only in the combined form of the base and the mounting frame.

[0053] In the present invention, the fixing frame 1 is installed on the test platform. The fixing frame 1 is used to support and install the rearview mirror to simulate the installation state of the rearview mirror; the first sliding seat 23, the second sliding seat 22, the folding drive seat 21 and the drive assembly 24 are sequentially installed on the test platform. The second sliding seat 22 is located at the bottom of the groove between the two support arms 221 and does not contact the top surface of the first sliding seat 23. The second sliding seat 22 is in rolling contact with the first sliding seat 23 by means of the needle roller row 26 on the two support arms 221. The folding drive seat 21 is connected to the second sliding seat 22 through a rotating shaft 25, and by adjusting the rotation angle of the folding drive seat 21 and the sliding position of the second sliding seat 22, the rearview mirror is positioned in the folding drive seat 21.

[0054] The test process of the present invention is as follows: In the initial state, the spring plungers 27 on both sides cause the second sliding seat 22 to be floatingly supported on the first sliding seat 23 in the first direction 2a. The end of the spring plunger 27 protrudes from the pressure piece 28. At this time, the pressure pieces 28 on both sides do not contact the side wall of the sliding groove 231, avoiding the contact between the pressure piece 28 and the side wall of the sliding groove 231 at the initial position and reducing unnecessary friction and wear. Start the driving assembly 24 to drive the first sliding seat 23 to slide. The sliding of the first sliding seat 23 is realized through the guide rail and the slider. When the first sliding seat 23 slides, pressure is applied to the support arm 221 on one side of the second sliding seat 22, so that the spring plungers 27 on the support arm 221 are squeezed. Until the end of the spring plunger 27 is flush with the force-bearing surface of the pressure piece 28, the side wall of the sliding groove 231 abuts against the plurality of pressure pieces 28. By using the cooperation of the first sliding seat 23 and the second sliding seat 22, the folding driving seat 21 drives the rearview mirror to fold. When starting to fold, the controller records the pressure values of the plurality of pressure pieces 28 and calculates the average pressure value of the plurality of pressure pieces 28. Compare the average pressure value with the set threshold. The set threshold includes the maximum set threshold and the minimum set threshold. When the average pressure value is greater than the maximum set threshold, the folding force is too large and the unlocking direction of the hinge shaft needs to be adjusted. When the average pressure value is less than the minimum set threshold, the folding force is insufficient and the locking direction of the locking shaft needs to be adjusted, so as to ensure that the folding force of the rearview mirror meets the usage requirements.

[0055] Through the settings of the folding driving seat 21, the first sliding seat 23, the second sliding seat 22 and the driving assembly 24, the present invention realizes the automatic test of the folding force of the rearview mirror, completely replaces the traditional manual folding and unfolding operations, reduces the labor intensity, improves the test efficiency, and through the settings of the spring plunger 27 and the pressure piece 28, can measure the folding force in real time and accurately, avoids the subjectivity of manual testing, and effectively ensures the consistency of product quality. Using the average pressure value of the plurality of pressure pieces 28 to evaluate the folding force further improves the reliability and stability of the measurement data and ensures the high precision of the folding force measurement.

[0056] In the present invention, the folding driving seat 21 includes a semi-closed frame 211, a positioning block 212 and a clamping shaft 213; the positioning block 212 is arranged on the lower support surface of the semi-closed frame 211, and the upper surface of the positioning block 212 is provided with a profiling surface that fits the bottom of the rearview mirror; the clamping shaft 213 is arranged above the semi-closed frame 211, and its end extends into the semi-closed frame 211 and clamps the rearview mirror mounting frame with the profiling surface.

[0057] Specifically, the folding drive seat 21 adopts a split design. When facing rearview mirror tests of different models, only the appropriate positioning block 212 needs to be replaced, rather than the entire folding drive seat 21, which reduces the equipment update and maintenance costs and improves the adaptability and flexibility of the folding drive seat 21. In another preferred solution, the positioning block 212 is located at the opening of the semi-closed frame 211, and a strip hole is provided on the positioning block 212, allowing the positioning block 212 to move within a certain range, capable of adjusting the position of the positioning block 212 relative to the inside of the semi-closed frame 211, enabling the profiling surface to better fit the bottom shape of the rearview mirror, ensuring the stability and reliability of clamping. In addition, the clamping shaft 213 is driven vertically by a cylinder, and a rubber head is provided at the end of the clamping shaft 213 to avoid damaging the rearview mirror.

[0058] In a preferred solution, the test device further includes a support sleeve 29 coaxially arranged with the rotating shaft 25; the support sleeve 29 is arranged on the second sliding seat 22, one end of the rotating shaft 25 is fixed on the folding drive seat 21, and the other end is rotatably connected to the support sleeve 29 through a bearing group 30.

[0059] Specifically, the bearing group 30 arranged in the support sleeve 29 is a combination of a thrust bearing and a deep groove ball bearing or a combination of multiple deep groove ball bearings, enabling the rotating shaft 25 to rotate smoothly and flexibly, further improving the smoothness and reliability of the movement of the folding drive seat 21;

[0060] In addition, in a preferred structure, during the process of installing the rearview mirror onto the folding drive seat 21, the support sleeve 29 can be lifted upward, further raising the support surface of the folding drive seat 21, enabling the rearview mirror to better fit within the folding drive seat 21, effectively ensuring the positioning accuracy of the rearview mirror. Preferably, the lifting of the support sleeve 29 can be driven by a gasket or a power structure.

[0061] In a preferred embodiment of the present invention, the drive assembly 24 includes a transmission seat 241, a lead screw nut group 242, and a drive motor 243; the lead screw nut group 242 is used to drive the transmission seat 241 to move linearly; the transmission seat 241 is fixedly connected to the first sliding seat 23 by bolts, and an adjustment hole 232 for the bolts to pass through is provided on the first sliding seat 23, and the adjustment hole 232 is arranged along the first direction 2a.

[0062] During the process of installing the rearview mirror onto the folding drive seat 21, multiple bolts connected to the transmission seat 241 are all in an unlocked state. Rotate the folding drive seat 21 to an appropriate angular position and manually push the folding drive seat 21 towards the rearview mirror. At this time, through the setting of the adjustment hole 232, the first sliding seat 23 and the second sliding seat 22 cooperate to clamp the rearview mirror. Through the split setting of the first sliding seat 23 and the drive assembly 24, the first sliding seat 23 can slide autonomously along the first direction 2a, so as to facilitate the adjustment of the initial test position of the second sliding seat 22.

[0063] Based on the above embodiments, in order to reduce the influence of manual operation errors on the test accuracy, centering and deviation correction components are provided on both sides of the first sliding seat 23 along the second direction 2b; the centering and deviation correction components include two adjustment cylinders 33 and a distance sensor, and the two adjustment cylinders 33 are arranged at the front end and the rear end of the support arm 221; a ball is arranged at the end of the drive rod of the adjustment cylinder 33 for adjusting the distance between the support arm 221 and the side wall of the sliding groove 231.

[0064] When testing the folding force, the drive rods of the adjustment cylinders 33 are in a retracted state. At this time, only the spring plunger 27 contacts the side wall of the sliding groove 231. After the folding force test is completed and before the folding angle test of the rearview mirror is carried out, the two adjustment cylinders 33 adjust the extended distance of the drive rods according to the induction signal of the distance sensor to perform centering adjustment on the second sliding seat 22; after the centering adjustment is completed, manually lock multiple bolts on the transmission seat 241. At this time, the second sliding seat 22 is in a centered state along the second direction 2b; the adjusted ball and the spring plunger 27 both roll and contact the side wall of the sliding groove 231, while the pressure piece 28 does not contact the side wall of the sliding groove 231. The drive assembly 24 drives the first sliding seat 23 to slide reciprocally. Based on the change of the folding radius of the rearview mirror, the second sliding seat 22 will slide on the first sliding seat 23, so that the folding drive seat 21 drives the rearview mirror to fold or open.

[0065] During the folding or opening process, the folding drive seat 21 rotates around the hinge axis following the rearview mirror, and at the same time, it will rotate around the rotation axis 25 itself. Thus, the rotation angle of the folding drive seat 21 around the rotation axis 25 is equal to the folding angle of the folding drive seat 21 driving the rearview mirror. Therefore, in the preferred embodiment, an angle sensor 31 is provided at one end of the rotation axis 25 away from the folding drive seat 21 to realize the test of the folding angle.

[0066] Specifically, two protrusions are formed on the upper surface of the first sliding seat 23 facing the second sliding seat 22. The outer sides of the two protrusions form the sliding groove 231, and an avoidance groove is formed between the two protrusions. When the second sliding seat 22 slides on the first sliding seat 23, the avoidance groove enables the angle sensor 31 to pass through smoothly. By providing the angle sensor 31, the rotation angle of the folding drive seat 21 can be measured in real time and accurately, providing high-precision angle feedback, so as to determine the folding position of the rearview mirror, and further test the folding angle of the rearview mirror to directly obtain the folding angle of the rearview mirror, facilitating a comprehensive verification of the folding performance of the rearview mirror.

[0067] In another preferred solution, in order to prevent the folding drive seat 21 from tilting during the test of the rearview mirror, two sets of support components 32 are provided between the folding drive seat 21 and the second sliding seat 22; the two sets of support components 32 are symmetrically arranged about the center of the rotation axis 25, and include guide wheels 321 and arc-shaped guide rails 322 that guide the guide wheels 321 to roll around the rotation axis 25.

[0068] Specifically, in the present invention, the guide wheels 321 are fixed on the folding drive seat 21, while the arc-shaped guide rails 322 are fixed on the second drive seat. The outer ring surface of the guide rail is provided with V-shaped protrusions, and the circumferential direction of the guide roller is provided with guide grooves for the V-shaped protrusions to be embedded. When the folding drive seat 21 rotates around the rotation axis 25, through the cooperation of the guide wheels 321 and the arc-shaped guide rails 322, the movement trajectory of the folding drive seat 21 is accurately guided to ensure the accuracy of the folding angle; and the trajectory of the arc-shaped guide rail 322 can completely cover the maximum folding angle of the rearview mirror. During the folding angle test, the guide wheels 321 always move along the trajectory of the guide rail, playing a supporting role for the folding drive seat 21, and at the same time ensuring that the movement trajectory of the folding drive seat 21 is accurate and error-free, further improving the test accuracy of the folding angle.

[0069] In the present invention, when the folding drive seat 21 drives the rearview mirror to fold or unfold, the folding resistance of the rearview mirror will form a reaction force on the second sliding seat 22, causing the support arm 221 on one side of the second sliding seat 22 to lift. The gap between the support arm 221 and the side wall of the chute 231 changes, making it difficult for the sensing piece to contact the side wall of the chute 231, resulting in the inability to obtain the pressure value. Therefore, to solve this problem, a limiting protrusion 221a is provided on the inner side edge of the support arm 221, and the chute 231 is provided with a limiting groove corresponding to the limiting protrusion 221a; when the support arm 221 is lifted by the reaction force, the limiting protrusion 221a will contact the upper surface of the limiting groove, thereby preventing the support arm 221 from further lifting, restricting the displacement of the second sliding seat 22 in the vertical direction, ensuring that it always remains on the predetermined path during the sliding process, and reducing the motion deviation. In addition, the distance between the end faces of the two limiting protrusions 221a is greater than the distance between the bottoms of the two limiting grooves. The limiting protrusion 221a is completely embedded in the limiting groove, and there is still a gap between the limiting protrusion 221a and the limiting groove at this time, enabling the side wall of the chute 231 to fully contact the plurality of pressure pieces 28, ensuring the accuracy of the folding force test.

[0070] In a preferred embodiment of the present invention, the fixing frame 1 includes two bases 11 and a mounting seat 12 mounted on the two bases 11; a calibration mounting block 13 is provided on one side surface of the mounting seat 12, and a positioning pressing plate 14 and a clamping arm 15 are provided at one side edge of the calibration mounting block 13, and a plurality of locking bolts 16 are provided on the other side surface of the mounting seat 12. The positioning clamping plate calibrates the base of the rearview mirror at the set position, reducing the debugging time. A plurality of clamping arms 15 are provided, and the clamping arms 15 are hinged on the mounting seat 12, and the base of the rearview mirror is clamped by folding, while the locking bolts 16 lock the base from the other side, and the double clamping method ensures the stability of the rearview mirror base during the test.

[0071] The present invention also provides a method for detecting a vehicle rearview mirror, using a vehicle rearview mirror detection device, including the following steps:

[0072] Install the rearview mirror on the folding drive seat 21 to ensure that the folding part of the rearview mirror is closely fitted with the folding drive seat 21; prevent the rearview mirror from loosening during the folding process and reduce the test error caused by improper installation.

[0073] Adjust the position of the second sliding seat 22 so that the pressure pieces 28 on both sides do not contact the side wall of the chute 231, ensuring that the spring plungers 27 on both sides provide floating support for the second sliding seat 22; avoid the pressure pieces 28 contacting the side wall of the chute 231 at the initial position and reduce unnecessary friction and wear.

[0074] Activate the driving component 24 to drive the first sliding seat 23 to move along the first direction 2a. The movement of the first sliding seat 23 will exert pressure on the support arm 221 on one side of the second sliding seat 22, causing multiple spring plungers 27 on the support arm 221 to be squeezed. Until the end of the spring plunger 27 is flush with the force-receiving surface of the pressure piece 28, the side wall of the sliding groove 231 abuts against multiple pressure pieces 28; by gradually applying pressure to simulate the folding force in actual use, the contact between the spring plunger 27 and the pressure piece 28 ensures the accuracy of pressure transmission, reduces measurement errors caused by poor contact, and further ensures the smoothness of the test process.

[0075] When the folding driving seat 21 drives the rearview mirror to start moving, record the pressure values of multiple pressure pieces 28, calculate the average pressure value of multiple pressure pieces 28, and compare it with the set threshold. If the average pressure value is greater than the maximum set threshold, the folding force is too large and the hinge shaft needs to be adjusted in the unlocking direction; if the average pressure value is less than the minimum set threshold, the folding force is insufficient and the locking shaft needs to be adjusted in the locking direction, so as to ensure that the folding force of the rearview mirror meets the use requirements.

[0076] Through the above optimized steps, the folding force of the rearview mirror can be effectively evaluated to ensure that it meets the design requirements and improve product quality and consistency.

[0077] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle rearview mirror detection device, characterized in that, Including: A fixing frame and a test component arranged on one side of the fixing frame; The test component includes a folding driving seat, a second sliding seat, a first sliding seat and a driving component arranged in sequence from top to bottom. The driving component is used to drive the first sliding seat to slide along a first direction, the second sliding seat slides along a second direction perpendicular to the first direction, and the folding driving seat is rotatably arranged on the second sliding seat through a rotating shaft; Two support arms are arranged at the bottom of the second sliding seat, two sliding grooves for the two support arms to slide are arranged above the first sliding seat, a row of needle rollers is arranged at the bottom of the support arm, and at least two spring plungers and a plurality of pressure plates are arranged on the side wall of the support arm facing the sliding groove; During testing, the side wall of the sliding groove on one side of the first sliding seat squeezes a plurality of the spring plungers on the support arm on the same side, the side wall of the sliding groove abuts against the pressure plates, and the average value of the pressures of the plurality of pressure plates is compared with a set threshold value to judge whether the folding force of the rearview mirror needs to be adjusted; Two groups of support components are arranged between the folding driving seat and the second sliding seat; The two groups of support components are symmetrically arranged with the center of the rotating shaft as the center, and include a guide wheel and an arc-shaped guide rail for guiding the guide wheel to roll around the rotating shaft; The fixing frame includes two bases and a mounting seat erected on the two bases; A calibration mounting block is arranged on one side surface of the mounting seat, and a positioning pressing plate and a clamping arm are arranged at one side edge of the calibration mounting block; And a plurality of locking bolts are arranged on the other side surface of the mounting seat.

2. The vehicle rearview mirror detection device according to claim 1, wherein The folding driving seat includes a semi-closed frame, a positioning block and a clamping shaft; The positioning block is arranged on the lower support surface of the semi-closed frame, and a profiling surface that fits with the bottom of the rearview mirror is arranged on the upper surface of the positioning block; The clamping shaft is arranged above the semi-closed frame, and its end extends into the semi-closed frame and clamps the rearview mirror mounting frame with the profiling surface.

3. The vehicle rearview mirror detection device according to claim 1, wherein It also includes a support sleeve coaxially arranged with the rotating shaft; The support sleeve is arranged on the second sliding seat, one end of the rotating shaft is fixed on the folding driving seat, and the other end is rotatably connected to the support sleeve through a bearing group.

4. The vehicle rearview mirror detection device according to claim 1, characterized in that, The driving component includes a transmission seat, a lead screw nut group and a driving motor; The lead screw nut group is used to drive the transmission seat to move linearly; The transmission seat is fixedly connected to the first sliding seat through bolts, and an adjustment hole for the bolts to pass through is arranged on the first sliding seat, and the adjustment hole is arranged along the first direction.

5. The vehicle rearview mirror detection device according to claim 4, characterized in that, Centering and deviation correction components are arranged on both sides of the first sliding seat along the second direction; The centering and deviation correction components include two adjustment cylinders and a distance sensor, and the two adjustment cylinders are arranged at the front end and the rear end of the support arm; A ball is arranged at the end of the driving rod of the adjustment cylinder for adjusting the distance between the support arm and the side wall of the sliding groove.

6. The vehicle rearview mirror detection device according to claim 5, wherein, An angle sensor is arranged at one end of the rotating shaft far from the folding driving seat.

7. The vehicle rearview mirror detection device according to claim 1, characterized in that, A limiting protrusion is arranged on the inner side edge of the support arm, and a limiting groove corresponding to the limiting protrusion is arranged on the sliding groove; The distance between the end faces of the two limiting protrusions is greater than the distance between the bottoms of the two limiting grooves.

8. A method for detecting a vehicle rearview mirror, using the vehicle rearview mirror detection device according to any one of claims 1-7, characterized in that, It includes the following steps: Mount the rearview mirror on the folding drive seat to ensure a tight fit between the rearview mirror and the folding drive seat; Adjust the position of the second sliding seat so that the pressure plates on both sides do not contact the side walls of the sliding groove, ensuring that the spring plungers on both sides provide floating support for the second sliding seat; Start the drive assembly to drive the first sliding seat to move in the first direction. The movement of the first sliding seat will apply pressure to the support arm on one side of the second sliding seat, causing the multiple spring plungers on the support arm to be squeezed. When the ends of the spring plungers are flush with the force-receiving surfaces of the pressure plates, the side walls of the sliding groove abut against the multiple pressure plates; When the folding drive seat drives the rearview mirror to start moving, record the pressure values of the multiple pressure plates, calculate the average pressure value of the multiple pressure plates, and compare it with the set threshold. If the average pressure value is greater than the maximum set threshold, the folding force is too large and the unlocking direction of the hinge shaft needs to be adjusted; if the average pressure value is less than the minimum set threshold, the folding force is insufficient and the locking direction of the locking shaft needs to be adjusted, so as to ensure that the folding force of the rearview mirror meets the usage requirements.

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