Visual light source durability detection equipment

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By designing visual light source durability testing equipment and using a composite mechanical structure to simulate the vibration of the visual light source at different frequencies and angles, the problems of detection accuracy and real-time performance caused by the loosening of the visual light source in a vibrating environment are solved, achieving higher detection accuracy and reliability.

CN120628508AInactive Publication Date: 2025-09-12INNER MONGOLIA LEADING OPTOELECTRONICS TECH CO LTD

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Patent Information

Application Number: CN202510852190.8
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2025-06-24
Publication Date: 2025-09-12
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

Visual light sources are prone to loosening in a vibrating environment, resulting in decreased detection accuracy and failure of real-time performance, affecting image acquisition resolution and detection reliability.

Method used

A visual light source durability testing device was designed, which included a testing platform, an adjustment unit, a vibration unit, and an impact unit. The composite mechanical structure was used to simulate the vibration of the visual light source at different frequencies and angles, and components such as telescopic rubber columns, return springs, and angle tubes were used to achieve multi-degree-of-freedom vibration simulation.

Benefits of technology

It improves the authenticity and detection effect of vibration simulation, exposes structural design defects in advance, and improves the mechanical reliability and detection accuracy of visual light sources.

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Abstract

The invention belongs to the technical field of visual light source impact detection, and particularly relates to visual light source durability detection equipment which comprises a detection pedestal, an adjusting unit is arranged in a space on one side of the detection pedestal, a vibration unit is arranged on one side of the adjusting unit, and an impact unit is arranged on the other side of the adjusting unit. According to the invention, the compressibility between the reset spring and the carrier and the detection pedestal is changed, and the amplitude and the deformation quantity of the reset spring in the current state are relatively reduced relative to those in the initial state, so that the anti-vibration detection of the visual light source in different frequency bands is realized, the detection interval is expanded, and the detection precision is improved. Meanwhile, the compressed reset spring gradually enters a non-simple harmonic vibration interval, at the moment, linear hypothesis is invalid, vibration waveform distortion is generated, the authenticity of a vibration simulation environment is improved, the vibration detection effect is improved, structural design defects are exposed in advance, and the reliability of the vibration simulation environment is improved. And the mechanical reliability is improved from the source.

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Description

Technical Field

[0001] The invention belongs to the technical field of visual light source impact detection, and in particular relates to a visual light source durability detection device. Background Art

[0002] Visual light source: A key component in machine vision systems, used to provide uniform and stable illumination for target objects, improve image acquisition quality, and facilitate subsequent image analysis, recognition, and measurement. Its core function is to control parameters such as light intensity, color, or illumination angle to highlight the features of the object being measured, suppress background interference, and improve the detection accuracy and reliability of the visual system.

[0003] During the actual use of visual light sources, due to the constant external vibration of different frequencies, the inevitability of mechanical connection loosening increases exponentially under the effect of time accumulation. Specifically, the connection between the visual light source and external components is usually fixed to the equipment bracket or production line frame using mechanical structures such as screws or clips. The long-term effect of external vibration factors gradually causes the preload of the screw connection to decay (loosening torque loss of the bolt), and the clips to break due to repeated deformation.

[0004] However, the looseness of the visual light source itself poses a fatal threat to the accuracy of visual inspection. That is, the feature extraction fails due to the angle deviation. The position of the visual light source is also offset, which will lead to the difference of light intensity in the inspection area, resulting in the increase of shadow area in the inspection area and the reduction of inspection accuracy.

[0005] At the same time, physical looseness of the visual light source can easily lead to real-time failure in dynamic detection scenarios. For example, in scenarios where the production line speed exceeds ten meters per second, loose visual light sources can cause image blur, which in turn affects the acquisition resolution of the line scan camera and causes "flying shooting" failures in high-speed assembly lines.

[0006] The necessity of vibration simulation testing for reliability verification: Through vibration simulation, the rationality of the use of the visual light source mounting hole location and the rationality of the screw specifications can be judged in advance. At the same time, the vibration tolerance of brackets made of different materials can be compared to select suitable materials for high-vibration scenarios. Summary of the Invention

[0007] In order to solve the above problems, the present invention adopts the following technical solution: a visual light source durability testing device, comprising three testing platforms, which are distributed circumferentially, an adjustment unit is provided in a space on one side of the testing platform, a vibration unit is provided on one side of the adjustment unit, and an impact unit is provided on the other side of the adjustment unit;

[0008] The vibration unit includes:

[0009] The end rods are arranged in groups of three and are evenly plugged into the outer end of the test bench in a circumferential direction. In addition, the end rods are installed in a sliding and snap-fit manner with the test bench.

[0010] Angle ring, snap-fitted to the outer wall of one end of the end rod;

[0011] The carrier is slidably mounted on the outer wall of one end of the end rod close to the corner ring;

[0012] The annular groove is provided in the middle of the end surface of the carrier close to the detection platform;

[0013] The corner rods are arranged in groups of four and are evenly arranged on the end surface of the carrier close to the detection base in the circumferential direction, and the corner rods are installed by sliding engagement with the inner wall of the ring groove;

[0014] Washers are symmetrically arranged on the outer wall of the corner bar; in addition, the washer at one end away from the detection platform is snap-fitted and installed with the carrier; the washer at the other end is snap-fitted and installed with the end face of the detection platform;

[0015] a return spring, snap-fitted and mounted between the two washers;

[0016] The angle tube is rotatably mounted on the end surface of the detection platform away from the carrier, and the angle tube and the detection platform are arranged opposite to each other.

[0017] Preferably, the outer wall of the angle tube at one end close to the carrier is provided with a mouth ring which is snap-fitted with the detection platform, the outer wall of the angle tube at one end away from the carrier is snap-fitted with a face ring, a torsion spring is snap-fitted between the mouth ring and the face ring, a snake groove is provided on the inner wall of the angle tube at one end away from the carrier, an end ring is snap-fitted with the middle position of the outer wall of the end rod, a ball rod which matches the snake groove is snap-fitted with the outer wall of the end ring, a pitch gear is snap-fitted with the outer side of the pitch gear, an open gear meshing with the pitch gear is provided, and the number of open gears is two, and the opening radius between the open gears at different positions is not equal, and a base is snap-fitted with the end face of the open gear away from the detection platform.

[0018] Preferably, a visual light source is movably provided on the bottom wall of one end of the carrier away from the detection platform, and an ear seat is symmetrically mounted on the outer side of the end face of the carrier away from the visual light source, and the ear seat is evenly distributed circumferentially on the outer end of the carrier, and a spring push rod is mounted between the two ear seats in the same group for sliding engagement, and a glue bead is mounted on one end of the spring push rod close to the axis of the carrier, and a tower ring is mounted on the end face of the detection platform close to the carrier, and the distance between the tower ring and the carrier is at least half of the height of the tower ring, and an angle bracket is mounted on the outer wall of the carrier for sliding engagement at one end of the spring push rod away from the glue bead, and a clamp is mounted on the end of the corner bracket away from the spring push rod, and a rubber pad that contacts the visual light source is mounted on the end of the clamp away from the corner bracket, and a telescopic spring is provided between the horizontal sections of the corner bracket away from one end of the spring push rod, which is sleeved on the outer wall of the clamp shaft end.

[0019] Preferably, the end rod is clamped and installed with a ball head at one end close to the corner ring, and a layer tube is clamped and installed at the middle position of the end face of the carrier away from the detection platform. The outer wall of the layer tube is slidingly clamped and installed with telescopic striker, and there are at least two of them. The telescopic striker is unevenly distributed on the outer wall of the layer tube, and the elastic coefficients between the telescopic striker are different.

[0020] Preferably, the adjustment unit includes:

[0021] The pillow block is arranged in a space on one side outside the test stand; in addition, the pillow block is mounted with the base by snap-fitting;

[0022] The workpiece disc is installed in the middle of the pillow block with rotational fit;

[0023] The corner column is installed in the middle of the test bench, and the corner column is installed in the middle of the work plate by plug-in card connection;

[0024] The main gear is mounted on the outer wall of the workpiece disc away from the pillow block by snap-fitting;

[0025] The column is mounted on the end face of the work plate close to the pillow block by snap-fitting;

[0026] The split gear is mounted on the outer wall of the column and meshes with the main gear;

[0027] The toothed pulleys are respectively mounted on the outer wall of one end of the column close to the pillow block and the outer wall of the end of the corner column close to the pillow block;

[0028] The toothed belt is installed in meshing cooperation between two toothed belt wheels of the same group.

[0029] Preferably, the shaft platform is rotatably mounted on one end away from the detection platform, the outer end of the end face of the shaft platform close to the detection platform is snap-fitted with a chassis, the end of the chassis away from the shaft platform is snap-fitted with a top cover, and a window is provided in the middle of the outer wall of the chassis.

[0030] Preferably, the impact unit comprises:

[0031] Straight rails are installed on different inner walls of the chassis in an alternating staggered snap-fit manner;

[0032] The hydraulic seat is installed in the middle position of the end face of the straight rail close to the axis of the shaft disc seat by sliding and snap-fitting;

[0033] The guide bar is symmetrically clamped and installed on the end face of the hydraulic seat away from the straight rail;

[0034] The electric support is movably arranged in the space on one side of the hydraulic seat away from the straight rail, and the electric support is installed with a sliding card fit between the guide bar;

[0035] The port frame is mounted on the outer wall of the electric support away from the shaft disc seat by snap-fitting;

[0036] The eccentric wheel is installed in the middle position of the port frame in a rotating manner;

[0037] The planetary gear is clamped and mounted on the outer wall of the eccentric wheel;

[0038] The sun gear is installed at the middle position of the end surface of the electric support away from the shaft disc seat through the rotation of the rotating shaft, and the sun gear is installed in meshing cooperation with the planetary gear.

[0039] Preferably, a stamping cylinder is installed at the eccentric point of the eccentric wheel in a plug-in snap-fitting manner, and an ear plate is symmetrically snap-fitted on the outer wall of the stamping cylinder away from the shaft disc seat, and a crank is snap-fitted on the ear plate away from the shaft disc seat. A coupling is snap-fitted between the two opposite cranks, and a large head of the coupling is hingedly installed in the middle position of the outer wall of the coupling, and a connecting plate is hingedly installed on the large head of the coupling away from one end of the coupling, and a small head of the connecting plate is hingedly installed on the end of the connecting plate away from the crank, and a piston is snap-fitted on the small head of the connecting plate away from the crank, which is slidably fitted with the inner wall of the stamping cylinder, and a support is snap-fitted on the end of the piston away from the crank.

[0040] Preferably, a telescopic rubber column is installed in a sliding snap-fitting manner inside the end of the pillar away from the crank, a cake ring is installed in a snap-fitting manner on the outer wall of the end of the stamping cylinder away from the crank, and the end face of the cake ring away from the crank is symmetrically snap-fitted with an electric telescopic rod, and an air column is installed in a snap-fitting manner at the end of the electric telescopic rod away from the crank, and a suction cup is installed in a snap-fitting manner at the end of the air column away from the electric telescopic rod, and the vertical distance between the suction cup away from the crank and the cake ring is smaller than the vertical distance between the telescopic rubber column away from the crank and the cake ring.

[0041] The durability testing method for vibration simulation in the visual light source usage scenario uses the above-mentioned visual light source durability testing equipment to perform vibration durability testing. The specific steps are as follows:

[0042] S1: First, the inspection personnel place different batches of visual light sources into the carrier in sequence. After that, the coupling is controlled by the crank, and the connection between the coupling big end, the connecting plate and the coupling small end is orderly, which drives the piston to reciprocate under the support of the inner wall of the stamping cylinder. Under the synchronous control of the piston, the pillar drives the telescopic rubber column to continuously strike the surface of the visual light source back and forth;

[0043] During this process, the degree of engagement between the sun gear and the planetary gear can be used to cause the eccentric wheel to drive the stamping cylinder to rotate a specified angle. At this time, the relative position between the stamping cylinder and the port frame is exponentially offset, thereby changing the knocking point between the telescopic rubber column and the end face of the visual light source, avoiding the single knocking position, differentiating the layout, and reducing the fault tolerance and contingency.

[0044] S2: Then, by changing the degree of engagement between the pitch gear and the open gears at different positions, the angle tube is caused to present different rotation angles at different positions. In this process, the engagement between the snake groove and the club causes the club to move the end rod toward the pillow block through the end ring at different rotation angles of the angle tube. This changes the compressibility of the return spring, and further changes the impact stroke between the telescopic rubber column and the visual light source, achieving vibration simulation of different frequencies.

[0045] At the same time, by taking advantage of the contact differences between the glue bead and the tower ring during movement, the vertical distance between the spring push rod and the carrier axis is changed. At the same time, the clamping interaction force between the clamping claw and the visual light source is changed through the angle bracket, achieving a gradient relative release of the vibration freedom of other angles of the visual light source when it vibrates in the direction of gravity, thereby improving the simulation authenticity.

[0046] S3: Finally, the main gear is controlled by the work plate and continuously meshes with the sub-gear. Through the transmission between the toothed pulleys, the corner column is driven to rotate the same angle as the work plate, forming the rotation adaptability and linkage between the work plate and the test platform, realizing efficient anti-vibration simulation detection of the specified number of visual light sources at different work stations.

[0047] The present invention has the following beneficial effects:

[0048] 1. The present invention promotes relative motion differences between the club and the snake groove through the differences in the rotation angles of the angle tube at different positions, resulting in differences in the relative positions of the end rods and the coaxial platforms at different positions, thereby changing the compressibility between the reset spring, the carrier and the detection platform. The reset spring in the current state has a relatively lower amplitude and a relatively smaller deformation than that in the initial state, thereby realizing anti-vibration detection of the visual light source in different frequency bands, expanding the detection range, and reducing the randomness or universality brought by single-range detection. At the same time, the compressed reset spring will gradually enter the non-harmonic vibration range. At this time, the linear assumption fails, and vibration waveform distortion occurs, which helps to increase the authenticity of the vibration simulation environment, avoid the same-frequency vibration between the visual light source and the carrier under long-term linear vibration, improve the vibration detection effect, expose structural design defects in advance, and improve mechanical reliability from the source.

[0049] 2. The present invention gradually changes the degree of extrusion interaction between the rubber bead and the tower ring, prompting the spring push rod to gradually change the relative vertical distance between the corner bracket and the axis of the platform at different positions, thereby forming an increase in the compression ratio of the reset spring itself while the compression ratio of the telescopic spring decreases, that is, while the axial amplitude of the platform relative to the detection platform decreases, the radial amplitude between the platform and the visual light source is linearly increased, realizing multi-degree-of-freedom vibration simulation of the visual light source inside the platform, improving the authenticity of the vibration simulation, and at the same time cooperating with the differential contact between the eccentrically rotating telescopic rubber column and the end face of the visual light source, further realizing the contact range between the telescopic rubber column and the end face of the visual light source during the specific implementation process, reducing the problem of the singleness of the vibration knocking simulation point, and the resulting probability of unrealistic vibration simulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0051] Figure 2 This invention is attached Figure 1 The middle structure omits the three-dimensional display of the internal structure of the chassis after the top cover is removed.

[0052] Figure 3 It is a three-dimensional display diagram of the local structure of the impact unit in the present invention.

[0053] Figure 4 This invention is attached Figure 3 Another perspective showing the structure after omitting the hydraulic seat.

[0054] Figure 5 It is a cross-sectional view showing the internal structure of the punching cylinder of the present invention.

[0055] Figure 6 This is a three-dimensional structure diagram showing the adjustment unit and the vibration unit in the present invention.

[0056] Figure 7 This invention is attached Figure 6 Three-dimensional display of the local structure.

[0057] Figure 8 It is a three-dimensional display diagram of the detection platform and the local structure thereon in the present invention.

[0058] Figure 9 This invention is attached Figure 8 A plan view of the local structure.

[0059] Figure 10 This is a cross-sectional view of the corner tube and its internal structure of the present invention.

[0060] Numbers in the figure: 1, test stand; 2, adjustment unit; 3, vibration unit; 4, impact unit;

[0061] 11. Shaft seat; 12. Chassis; 13. Top cover; 14. Window;

[0062] 21. Pillow block; 22. Work plate; 23. Corner column; 24. Main gear; 25. Vertical column; 26. Position gear; 27. Toothed pulley; 28. Toothed belt;

[0063] 31. End rod; 32. Angle ring; 33. Carrier; 34. Ring groove; 35. Angle rod; 36. Washer; 37. Return spring; 38. Angle tube;

[0064] 311. Mouth ring; 312. Face ring; 313. Torsion spring; 314. Snake groove; 315. End ring; 316. Ball rod; 317. Pitch gear; 318. Open gear; 319. Base;

[0065] 321. Visual light source; 322. Ear seat; 323. Spring push rod; 324. Glue bead; 325. Tower ring; 326. Corner bracket; 327. Clamping claw; 328. Rubber pad; 329. Telescopic spring;

[0066] 331, ball head; 332, layer tube; 333, telescopic striker;

[0067] 41. Straight rail; 42. Hydraulic seat; 43. Guide bar; 44. Electric support; 45. Port frame; 46. Eccentric wheel; 47. Planetary gear; 48. Sun gear;

[0068] 411, ram cylinder; 412, lug plate; 413, crank; 414, coupling; 415, coupling big end; 416, connecting plate; 417, connecting plate small end; 418, piston; 419, support;

[0069] 421. Telescopic rubber column; 422. Cake ring; 423. Electric telescopic rod; 424. Air column; 425. Suction cup. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0071] It should be noted that the terms “vertical”, “horizontal”, “left”, “right” and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0072] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0073] Reference Figure 2 、 Figure 3 and Figure 6 It can be seen that a visual light source 321 durability testing device includes three testing platforms 1, which are distributed circumferentially. An adjustment unit 2 is provided on one side of the testing platform 1, a vibration unit 3 is provided on one side of the adjustment unit 2, and an impact unit 4 is provided on the other side of the adjustment unit 2.

[0074] Reference Figure 2 、 Figure 6 and Figure 7 It can be seen that the adjustment unit 2 includes: a pillow block 21, which is arranged in the space on one side outside the detection platform 1; in addition, the pillow block 21 is snap-fitted and installed with the base 319; the work plate 22 is rotatably installed in the middle position of the pillow block 21; the corner column 23 is plug-fitted and installed in the middle position of the detection platform 1, and the corner column 23 is plug-fitted and snap-fitted with the work plate 22; the main position gear 24 is snap-fitted and installed on the outer wall of the work plate 22 away from the pillow block 21; the column 25 is snap-fitted and installed on the end face of the work plate 22 close to the pillow block 21; the split gear 26 is snap-fitted and installed on the outer wall of the column 25, and the split gear 26 is meshed with the main position gear 24; the toothed pulleys 27 are snap-fitted and installed on the outer wall of the end of the column 25 close to the pillow block 21 and the outer wall of the end of the corner column 23 close to the pillow block 21; the toothed belt 28 is meshingly installed between the two toothed pulleys 27 of the same group;

[0075] Reference Figure 1 It can be seen that the end of the pillow block 21 away from the detection platform 1 is rotatably mounted with a shaft disc seat 11, the outer end of the end surface of the shaft disc seat 11 close to the detection platform 1 is snap-fitted with a chassis 12, and the end of the chassis 12 away from the shaft disc seat 11 is snap-fitted with a top cover 13, and a window 14 is provided in the middle of the outer wall of the chassis 12;

[0076] Reference Figure 2 、 Figure 3 and Figure 4It can be seen that the impact unit 4 includes: a straight rail 41, which is installed on different inner walls of the chassis 12 in an offset and alternating snap-fit manner; a hydraulic seat 42, which is slidably snap-fitted and installed in the middle position of the end face of the straight rail 41 close to the axis of the shaft disc seat 11; a guide bar 43, which is symmetrically snap-fitted and installed on the end face of the hydraulic seat 42 away from the straight rail 41; an electric support 44, which is movably arranged in the space on the side of the hydraulic seat 42 away from the straight rail 41, and the electric support 44 and the guide bar 43 are slidably snap-fitted and installed; a port frame 45, which is snap-fitted and installed on the outer wall of the electric support 44 away from the shaft disc seat 11; an eccentric wheel 46, which is rotatably mounted in the middle position of the port frame 45; a planetary gear 47, which is snap-fitted and installed on the outer wall of the eccentric wheel 46; a sun gear 48, which is rotatably mounted on the electric support 44 away from the shaft disc seat 11 through a rotating shaft, and the sun gear 48 is meshed with the planetary gear 47.

[0077] Reference Figure 4 and Figure 5 It can be seen that a punching cylinder 411 is installed at the eccentric point of the eccentric wheel 46 in a plug-in snap-fitting manner, and an ear plate 412 is symmetrically snap-fitted on the outer wall of the punching cylinder 411 away from the shaft disc seat 11, and a crank 413 is snap-fitted on the end of the ear plate 412 away from the shaft disc seat 11, and a coupling 414 is snap-fitted between the two opposite cranks 413. A coupling big head 415 is hingedly installed at the middle position of the outer wall of the coupling 414, and a connecting plate 416 is hingedly installed on the end of the coupling big head 415 away from the coupling 414, and a connecting plate small head 417 is hingedly installed on the end of the connecting plate 416 away from the crank 413, and a piston 418 is snap-fitted on the end of the connecting plate small head 417 away from the crank 413, which is slidably fitted with the inner wall of the punching cylinder 411, and a support 419 is snap-fitted on the end of the piston 418 away from the crank 413.

[0078] Reference Figure 3 、 Figure 4 and Figure 5 It can be seen that a telescopic rubber column 421 is installed in a sliding snap-fitting manner inside the end of the pillar 419 away from the crank 413, a cake ring 422 is snap-fitted on the outer wall of the end of the stamping cylinder 411 away from the crank 413, and the end face of the cake ring 422 away from the crank 413 is symmetrically snap-fitted with an electric telescopic rod 423, and an air column 424 is snap-fitted on the end of the electric telescopic rod 423 away from the crank 413, and a suction cup 425 is snap-fitted on the end of the air column 424 away from the electric telescopic rod 423, and the vertical distance between the end of the suction cup 425 away from the crank 413 and the cake ring 422 is smaller than the vertical distance between the end of the telescopic rubber column 421 away from the crank 413 and the cake ring 422.

[0079] The overall replacement adjustment between different groups of test platforms 1 and the synchronous adjustment process of the positions of the same group (three in a group) of test platforms 1 (at different stations):

[0080] First, under the stable support of the pillow block 21, the work plate 22 synchronously drives the detection platform 1 to rotate through the corner column 23. In specific implementation, the work plate 22 can be driven by the motor built into the shaft plate base 11 to rotate, so that the detection platform 1 in the initial position a, b, and c areas interacts with the straight rail 41 in the initial position a, b, and c areas in sequence;

[0081] Next, the main gear 24 and the sub-gear 26 are always in meshing engagement, causing the sub-gear 26 to synchronously control the column 25 to drive the toothed pulley 27 (at the end of the column 25) to rotate (the rotation angle of the toothed pulley 27 is consistent with the rotation angle of the work plate 22). Thereafter, the toothed pulley 27 drives the corner column 23 to rotate the corresponding angle synchronously through the transmission effect of the toothed belt 28.

[0082] Finally, the detection platform 1 is synchronously driven by the corner post 23 to rotate a specified angle (that is, while the detection platform 1 synchronously follows the work plate 22 to rotate a specified angle, the detection platform 1 rotates the same angle relative to the corner post 23. In this application, the detection platform 1 and the straight rail 41 are respectively provided as three. During specific implementation, it is important to ensure that the positions and quantities of the two correspond. Taking this application as an example: the detection platform 1 rotates a single angle of 120 degrees).

[0083] Solution 1 for contact and knocking of the end faces of the telescopic rubber column 421 and the visual light source 321:

[0084] Precondition: The detection platform 1 and the straight rail 41 are facing each other, and in the initial state, the telescopic rubber column 421 and the visual light source 321 axis coincide with each other;

[0085] First, the crank 413 is used to control the coupling 414 to drive the coupling big end 415 to rotate under the stable support of the ear plate 412. In specific implementation, the crank 413 can be driven to rotate by an external motor (and the external motor can be fixedly connected to the ear plate 412 through an external bracket). Thereafter, the connecting plate 416, under the control of the coupling big end 415, synchronously drives the connecting plate small end 417 to drive the piston 418 to continuously reciprocate along its axial direction under the support of the inner wall of the stamping cylinder 411 (and since the length of the crank 413 is fixed, the relative stroke of the piston 418 is always a constant value, that is, under the control of the piston 418, the front and rear knocking interaction force between the telescopic rubber column 421 driven by the pillar 419 and the end face of the visual light source 321 is consistent);

[0086] The purpose of the "glue column" in contact with the end face of the visual light source 321 being provided as an elastic telescopic glue column 421 is:

[0087] Rigid knocking has response limitations: that is, when a rigid impact occurs (assuming the telescopic rubber column 421 is not elastic and the contact between it and the visual light source 321 is always rigid), the energy is concentrated in the high-frequency band (e.g., above 1000 Hz), which can only excite the high-order natural frequencies of the spring and is difficult to cover the risk of low-frequency resonance (e.g., the fundamental frequency resonance of the spring below 100 Hz may cause structural fatigue). In addition, high impact force may cause the spring to enter the plastic deformation stage prematurely, which in turn causes the test results to deviate from the elastic vibration scenario in actual use. In other words, the linear response assumption fails.

[0088] Spring impact significantly improves multi-dimensional detection capabilities: When the telescopic rubber column 421 (its own spring) collides with the return spring 37, vibrations of fA, fB, and their combined frequencies (e.g., fA+fB, |fA-fB|) are generated. This creates a broadband excitation, covers a wider range of resonance risk points, and more realistically reflects changes in vibration characteristics caused by slight deformation in actual working conditions, improving the authenticity of vibration environment simulation.

[0089] Next, the electric support 44, under the guiding and supporting action of the guide bar 43, timely controls the port frame 45 to drive the stamping cylinder 411 to move toward the visual light source 321 (in specific implementation, the electric support 44 can be driven to move by the electric slider). At the same time, through the telescopic action of the hydraulic seat 42 (the straight rail 41 provides a stable operating environment for the hydraulic seat 42), the electric support 44 is controlled to move in the circumferential direction of the pillow block 21, thereby realizing the two-axis linkage processing of the stamping cylinder 411 relative to the visual light source 321 (that is, the stamping cylinder 411 is ultimately controlled to move along a single radial gradient of the visual light source 321. This is a first solution for increasing the contact point between the telescopic rubber column 421 and the end face of the visual light source 321).

[0090] Finally, through the meshing movement between the sun gear 48 and the planetary gear 47 (in specific implementation, the sun gear 48 can be driven to rotate by an external motor), the eccentric wheel 46 drives the punching cylinder 411 to rotate a specified angle, thereby changing the relative eccentricity between the punching cylinder 411 and the end frame 45, adjusting the deviation between the telescopic rubber column 421 and the center point of the visual light source 321, and further increasing the knocking range between the telescopic rubber column 421 and the visual light source 321 (this is the second solution for increasing the contact point between the end surface of the telescopic rubber column 421 and the visual light source 321);

[0091] Chassis 12, top cover 13 and window 14: The chassis 12 and top cover 13 can reduce external vibration interference and provide a relatively dust-free environment for the entire device in this application, thereby increasing the service life of the device; on the one hand, the window 14 can facilitate the inspection personnel to replace the visual light source 321 body; on the other hand, it can facilitate the inspection personnel to observe the real-time vibration status while avoiding potential splashing hazards during the vibration process.

[0092] Reference Figure 6 、 Figure 8 and Figure 10 It can be seen that the vibration unit 3 includes: end rods 31, which are grouped into three and are evenly installed in the outer end of the detection platform 1 in a plug-in manner in the circumferential direction; in addition, the end rods 31 are slidably engaged with the detection platform 1; an angle ring 32 is snap-fitted to the outer wall of one end of the end rod 31; a carrier 33 is slidably engaged with the outer wall of the end rod 31 near the angle ring 32; an annular groove 34 is provided in the middle position of the end face of the carrier 33 near the detection platform 1; four angle rods 35 are grouped into four and are evenly arranged in the circumferential direction on the end face of the carrier 33 near the detection platform 1, and the angle rods 35 are slidably engaged with the inner wall of the annular groove 34;

[0093] Washers 36 are symmetrically arranged on the outer wall of the angle rod 35; in addition, the washer 36 at one end away from the detection platform 1 is snap-fitted and installed with the carrier 33; the washer 36 at the other end is snap-fitted and installed with the end face of the detection platform 1; a return spring 37 is snap-fitted and installed between the two washers 36; an angle tube 38 is rotatably installed on the end face of the detection platform 1 away from the carrier 33, and the angle tube 38 and the detection platform 1 are arranged in a positive direction.

[0094] Reference Figure 7 、 Figure 8 and Figure 10 The cam 314 is provided on the inner wall of the end of the cam 318 which is away from the platform 33, and the cam 315 is provided on the inner wall of the cam 318 which is away from the platform 33.

[0095] Reference Figure 7 and Figure 9It can be seen that a visual light source 321 is movably provided on the bottom wall of the carrier 33 away from the detection platform 1, and an ear seat 322 is symmetrically mounted on the outer side of the end face of the carrier 33 away from the visual light source 321, and the ear seat 322 is evenly distributed circumferentially on the outer end of the carrier 33, and a spring top rod 323 is mounted between the two ear seats 322 of the same group for sliding engagement, and a glue bead 324 is mounted on the end of the spring top rod 323 close to the axis of the carrier 33, and a tower ring 325 is mounted on the end face of the detection platform 1 close to the carrier 33, and the tower ring 325 is mounted on the carrier 33. The distance between the platforms 33 is at least half the height of the tower ring 325. The end of the spring push rod 323 away from the glue bead 324 is snap-fitted with a corner bracket 326 that is slidably mounted on the outer wall of the carrier 33. The end of the corner bracket 326 away from the spring push rod 323 is snap-fitted with a clamping claw 327. The end of the clamping claw 327 away from the corner bracket 326 is snap-fitted with a rubber pad 328 that contacts the visual light source 321. A telescopic spring 329 is provided between the horizontal section of the corner bracket 326 away from the spring push rod 323 and is sleeved on the outer wall of the axial end of the clamping claw 327.

[0096] Reference Figure 10 It can be seen that the end rod 31 is clamped and installed with a ball head 331 at one end close to the corner ring 32, and the carrier 33 is clamped and installed with a layer tube 332 in the middle position of the end face of the side away from the detection platform 1. The outer wall of the layer tube 332 is slidingly clamped and installed with telescopic striker 333, and the number is at least two, and the telescopic striker 333 is unevenly distributed on the outer wall of the layer tube 332, and the elastic coefficients between the telescopic striker 333 are different.

[0097] The process of reducing the amplitude gradient of the return spring 37 (when the position of the detection base 1 is switched):

[0098] First, the pitch gear 317 is differentially meshed with the open gear 318 (the opening degrees of the open gear 318 at different positions are different, so the meshing degrees between the pitch gear 317 and the open gear 318 at different positions are different). At the same time, the extreme meshing state between the pitch gear 317 and the open gear 318 provides stability to the angle tube 38 in the designated processing position.

[0099] Next, when the angle tube 38 is in the self-rotating state, the internal snake groove 314 thereof continuously generates relative motion with the ball rod 316 on the outer wall of the end ring 315. The ball rod 316, under the engagement of the snake groove 314, drives the end rod 31 through the end ring 315 to move a specified distance toward the pillow block 21 (and the movement distance of the end rod 31 is inconsistent at different positions). During this process, when the angle ring 32 moves toward the pillow block 21, the movable engagement between the angle ring 32 and the carrier 33 causes the carrier 33 to move synchronously toward the pillow block 21 under the control of the angle ring 32.

[0100] Finally, during the movement of the platform 33, by detecting the support and guidance of the diagonal rod 35 of the platform 1 (the purpose of the annular groove 34 is to avoid self-limitation of the freedom between the platform 33 and the diagonal rod 35. In specific implementation, the platform 33 can be driven externally to achieve self-rotation without affecting the overall movement), the washer 36 (the end of the platform 33) is prompted to move toward the pillow block 21, and the return spring 37 is continuously compressed until it reaches the specified deformation (the amplitude of the return spring 37 decreases gradually during the compression process, cooperating with the aforementioned scheme of changing the state of the telescopic rubber column 421 and its collision).

[0101] The distance between the tower ring 325 and the carrier 33 is at least half the height of the tower ring 325: to ensure the movement space of the carrier 33 toward the shaft platform 21, to avoid the impact of the telescopic rubber column 421, which will cause a rigid collision between the carrier 33 and the tower ring 325, or even a rigid limit, affecting the overall anti-vibration environment simulation;

[0102] The process of increasing the amplitude gradient of the telescopic spring 329 (when the position of the detection platform 1 is switched):

[0103] First, due to the synchronization of the movement between the ear seat 322 and the carrier 33, when the carrier 33 moves toward the pillow block 21, the degree of mutual squeezing between the glue bead 324 and the tower ring 325 changes gradually (the tower ring 325 is narrow at the top and wide at the bottom, with gravity as the direction reference);

[0104] Next, the glue bead 324 applies a reverse force to the spring push rod 323, causing the spring push rod 323 to be supported and guided by the ear seat 322, and the corner bracket 326 to be further guided by the platform 33, and to move a specified distance away from the axis of the platform 33.

[0105] Finally, the movement synchronization between the corner bracket 326 and the clamping jaw 327 causes the clamping jaw 327 to synchronously control the rubber pad 328 (reducing friction loss between the clamping jaw 327 and the outer wall of the visual light source 321), thereby reducing the radial clamping force between the clamping jaw 327 and the outer wall of the visual light source 321. This, in turn, reduces the radial degree of freedom between the clamping jaw 327 and the visual light source 321 in the radial direction of the platform 33 to a certain extent, helping to increase the vibration diversity of the visual light source 321 when it is impacted inside the platform 33, thereby improving the realism of the vibration simulation environment.

[0106] The auxiliary simulation process of the visual light source 321 in the radial vibration impact of the carrier 33:

[0107] When the telescopic rubber column 421 interacts with the visual light source 321, the ball head 331 and the carrier 33 move toward each other. During this process, the ball head 331 continuously moves with the telescopic striker 333 of different positions and elastic variables. The telescopic striker 333 continuously strikes the inner wall of the visual light source 321 in different states (the nonlinear distribution of the telescopic striker 333 further enhances the movement diversity of the visual light source 321 inside the carrier 33).

[0108] The recovery process of the front and rear rotation angle of the angle tube 38:

[0109] When the angle tube 38 is rotating and the pitch gear 317 is separated from the open gear 318 , the angle tube 38 gradually moves toward the initial angle under the restoring force of the torsion spring 313 between the face ring 312 and the mouth ring 311 .

[0110] The present invention provides a visual light source 321 durability testing device with the following working principle: First, the test personnel place different batches of visual light sources 321 into the carrier 33 in sequence. Thereafter, the coupling 414, under the control of the crank 413, drives the piston 418 to reciprocate under the support of the inner wall of the stamping cylinder 411 through the orderly connection between the coupling big end 415, the connecting plate 416 and the small end of the coupling 414. The support 419, under the synchronous control of the piston 418, drives the telescopic rubber column 421 to continuously strike the surface of the visual light source 321 back and forth;

[0111] During this process, the degree of engagement between the sun gear 48 and the planetary gear 47 can be used to cause the eccentric wheel 46 to drive the punching cylinder 411 to rotate a specified angle. At this time, the relative position between the punching cylinder 411 and the end frame 45 is exponentially offset, thereby changing the knocking point between the telescopic rubber column 421 and the end face of the visual light source 321, avoiding the single knocking position, differentiating the layout, and reducing the fault tolerance and contingency.

[0112] Step 2: By changing the degree of engagement between the pitch gear 317 and the open gears 318 at different positions, the angle tube 38 is caused to exhibit different rotation angles at different positions. During this process, the engagement between the snake groove 314 and the ball rod 316 causes the ball rod 316 to move the end rod 31 toward the pillow block 21 through the end ring 315 at different rotation angles of the angle tube 38. This changes the compressibility of the return spring 37, and further changes the impact stroke between the telescopic rubber column 421 and the visual light source 321, thereby achieving vibration simulation of different frequencies.

[0113] At the same time, by varying the contact between the glue bead 324 and the tower ring 325 during movement, the vertical distance between the spring push rod 323 and the axis of the platform 33 is changed. At the same time, the angle bracket 326 is used to change the clamping interaction force between the clamping claw 327 and the visual light source 321. This achieves a gradient-type relative release of the visual light source 321 from vibrations in the direction of gravity at other angles, thereby improving the simulation authenticity.

[0114] Step 3: Finally, the main gear 24 is controlled by the work plate 22 and continuously meshes with the sub-gear 26. Through the transmission between the toothed pulleys 27, the corner column 23 is prompted to rotate the detection platform 1 at the same angle when the work plate 22 rotates, forming the rotation adaptability and linkage between the work plate 22 and the detection platform 1, and realizing efficient anti-vibration simulation detection of the specified number of visual light sources 321 at different work stations.

[0115] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0116] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A visual light source durability testing device, comprising three testing stands (1) distributed circumferentially, characterized in that: An adjustment unit (2) is provided in a space on one side of the detection platform (1), a vibration unit (3) is provided on one side of the adjustment unit (2), and an impact unit (4) is provided on the other side of the adjustment unit (2); The vibration unit (3) comprises: End rods (31), three in a group, are evenly plugged and installed on the outer end of the detection platform (1) in a circumferential direction; In addition, the end rod (31) is mounted on the detection platform (1) by sliding engagement. An angle ring (32) is mounted on the outer wall of one end of the end rod (31) by snap-fitting; The carrier (33) is slidably mounted on the outer wall of one end of the end rod (31) close to the corner ring (32); The annular groove (34) is provided at the middle position of the end surface of the carrier (33) close to the detection platform (1); The corner rods (35) are arranged in groups of four and are evenly arranged in the circumferential direction on the end surface of the carrier (33) close to the detection platform (1), and the corner rods (35) are installed by sliding engagement with the inner wall of the annular groove (34); The washer (36) is symmetrically arranged on the outer wall of the corner rod (35); in addition, the washer (36) at one end away from the detection platform (1) is snap-fitted and installed with the carrier (33); the washer (36) at the other end is snap-fitted and installed with the end face of the detection platform (1); a return spring (37) mounted between the two washers (36) in a snap-fit manner; The angle tube (38) is rotatably mounted on the end face of the detection platform (1) away from the carrier (33), and the angle tube (38) and the detection platform (1) are arranged opposite to each other.

2. The visual light source durability testing device according to claim 1, characterized in that: The outer wall of the angle tube (38) close to the carrier (33) is provided with a mouth ring (311) which is snap-fitted with the detection platform (1); the outer wall of the angle tube (38) away from the carrier (33) is snap-fitted with a face ring (312); a torsion spring (313) is snap-fitted between the mouth ring (311) and the face ring (312); a snake groove (314) is provided on the inner wall of the end of the angle tube (38) away from the carrier (33); an end ring (315) is snap-fitted with the middle position of the outer wall of the end rod (31); and the end ring (316) is snap-fitted with the outer wall of the end rod (31). 15) A ball rod (316) matching with the snake groove (314) is mounted on the outer wall of the angle tube (38), and a pitch gear (317) is mounted on the outer wall of one end away from the carrier (33). An open gear (318) meshing with the pitch gear (317) is provided on the outer side of the pitch gear (317), and the number of the open gears (318) is two. At the same time, the opening radii of the open gears (318) at different positions are not equal. A base (319) is mounted on the end face of the open gear (318) away from the detection platform (1).

3. The visual light source durability testing device according to claim 2, characterized in that: The bottom wall of one end of the carrier (33) away from the detection platform (1) is movably provided with a visual light source (321); the outer side of the end surface of the carrier (33) away from the visual light source (321) is symmetrically clamped with an ear seat (322), and the ear seat (322) is evenly distributed on the outer end of the carrier (33) in the circumferential direction; the two ear seats (322) of the same group are slidably clamped and fitted with a spring top rod (323); the spring top rod (323) is clamped and fitted with a glue bead (324) at one end close to the axis of the carrier (33); the end surface of the detection platform (1) close to the carrier (33) is clamped and fitted with a tower ring (325), and the tower ring (325) is fixed with the carrier ( 33) are at least half the height of the tower ring (325), the spring push rod (323) is snap-fitted with one end away from the glue bead (324) and is installed with an angle bracket (326) that is slidably installed with the outer wall of the carrier (33), the angle bracket (326) is snap-fitted with one end away from the spring push rod (323) and is installed with a clamping claw (327), the clamping claw (327) is snap-fitted with one end away from the angle bracket (326) and is installed with a rubber pad (328) that contacts the visual light source (321), and a telescopic spring (329) is provided between the horizontal sections of the angle bracket (326) away from one end of the spring push rod (323) and is sleeved on the outer wall of the axial end of the clamping claw (327).

4. The visual light source durability testing device according to claim 3, characterized in that: A ball head (331) is mounted on one end of the end rod (31) close to the corner ring (32), and a layer tube (332) is mounted on the middle position of the end surface of the carrier (33) away from the detection platform (1). The outer wall of the layer tube (332) is mounted with telescopic strikers (333) in a sliding manner. The number of the telescopic strikers (333) is at least two, and the telescopic strikers (333) are unevenly distributed on the outer wall of the layer tube (332). At the same time, the elastic coefficients of the telescopic strikers (333) are different.

5. The visual light source durability testing device according to claim 4, characterized in that: The regulating unit (2) comprises: The pillow block (21) is arranged in a space on one side outside the detection platform (1); in addition, the pillow block (21) is mounted on the base (319) by snap-fitting. The workpiece plate (22) is rotatably mounted in the middle of the pillow block (21); The corner post (23) is installed in the middle position of the detection platform (1) by plugging, and the corner post (23) is installed in the middle of the work plate (22) by plug-in card fitting; The main gear (24) is mounted on the outer wall of the workpiece disc (22) at one end away from the pillow block (21) by snap-fitting; The column (25) is mounted on the end surface of the work plate (22) close to the pillow block (21) by snap-fitting; The split gear (26) is mounted on the outer wall of the column (25) and meshes with the main gear (24); The toothed pulley (27) is respectively mounted on the outer wall of one end of the column (25) close to the pillow block (21) and the outer wall of one end of the corner column (23) close to the pillow block (21); The toothed belt (28) is mounted in meshing engagement between two toothed belt wheels (27) of the same group.

6. The visual light source durability testing device according to claim 1, characterized in that: The shaft base (21) is rotatably mounted on one end of the shaft base (21) away from the detection base (1), and the outer end of the end surface of the shaft base (11) close to the detection base (1) is snap-fitted with a chassis (12). The end of the chassis (12) away from the shaft base (11) is snap-fitted with a top cover (13), and a window (14) is provided in the middle of the outer wall of the chassis (12).

7. The visual light source durability testing device according to claim 6, characterized in that: The impact unit (4) comprises: The straight rails (41) are mounted on different inner walls of the chassis (12) in an offset and alternating snap-fit manner; The hydraulic seat (42) is mounted in a sliding and snap-fit manner on the middle position of the end surface of the straight rail (41) close to the axis of the shaft disc seat (11); The guide bar (43) is symmetrically mounted on the end surface of the hydraulic seat (42) away from the straight rail (41); The electric support (44) is movably arranged in a space on one side of the hydraulic seat (42) away from the straight rail (41), and the electric support (44) is installed with the guide bar (43) by sliding engagement; The port frame (45) is mounted on the outer wall of one end of the electric support (44) away from the shaft disc seat (11) by snap-fitting; An eccentric wheel (46) is rotatably mounted in the middle of the port frame (45); The planetary gear (47) is mounted on the outer wall of the eccentric wheel (46); The sun gear (48) is mounted on the middle position of the end face of the electric support (44) away from the shaft disc seat (11) through the rotation of the shaft, and the sun gear (48) is mounted in meshing cooperation with the planetary gear (47).

8. The visual light source durability testing device according to claim 7, characterized in that: A punching cylinder (411) is installed at the eccentric point of the eccentric wheel (46) in a plug-in snap-fit manner. An ear plate (412) is symmetrically snap-fitted on the outer wall of the punching cylinder (411) away from the shaft disc seat (11). A crank (413) is snap-fitted on the end of the ear plate (412) away from the shaft disc seat (11). A coupling (414) is snap-fitted between the two cranks (413) facing each other. A coupling (414) is hingedly installed at the middle position of the outer wall of the coupling (414). The big head (415) is hingedly mounted on one end of the coupling big head (415) away from the coupling (414) with a connecting plate (416), and the connecting plate (416) is hingedly mounted on one end away from the crank (413) with a connecting plate small head (417). The connecting plate small head (417) is clamped and mounted on one end away from the crank (413) with a piston (418) that is slidably mounted on the inner wall of the punching cylinder (411), and the piston (418) is clamped and mounted on one end away from the crank (413) with a support (419).

9. The visual light source durability testing device according to claim 8, characterized in that: A telescopic rubber column (421) is installed in a sliding snap-fit manner at one end of the pillar (419) away from the crank (413); a cake ring (422) is snap-fitted on the outer wall of one end of the punching cylinder (411) away from the crank (413); an electric telescopic rod (423) is snap-fitted and installed in a symmetrical manner at the end face of the cake ring (422) away from the crank (413); an air column (424) is snap-fitted at one end of the electric telescopic rod (423) away from the crank (413); a suction cup (425) is snap-fitted at one end of the air column (424) away from the electric telescopic rod (423); and a vertical distance between the end of the suction cup (425) away from the crank (413) and the cake ring (422) is smaller than a vertical distance between the end of the telescopic rubber column (421) away from the crank (413) and the cake ring (422).