Automatic optical detection equipment for electronic instrument

Abstract

The invention is suitable for the technical field of optical detection equipment, and provides electronic instrument automatic optical detection equipment, which comprises an equipment box body, a moving module, a lifting module, a rotary detection table, an optical detection module, a detection frame, a mounting shaft, a touch control adjusting mechanism and a regulation and control mechanism, the touch control adjusting mechanism is composed of a Z-shaped touch control plate, a lifting sensing assembly, a horizontal adjusting assembly and a sliding base. The touch control adjusting mechanism senses the contour of the curved surface of the instrument in real time and cooperates with the regulation and control mechanism to adjust the inclination angle of the optical detection module, it is ensured that the detection light always coincides with the normal of each detection point of the curved surface screen of the instrument in the whole-stroke movement process, the measurement errors of brightness and color are reduced, and the detection accuracy is improved. And the regulation and control mechanism changes the rotation stroke of the optical detection module by changing the force arm ratio of the structure of the regulation and control mechanism, so that the optical detection requirements of instrument curved screens with different curvatures are met, and the universality of the device is improved.

Description

Technical Field

[0001] This invention belongs to the field of optical inspection equipment technology, and particularly relates to an automatic optical inspection device for electronic instruments. Background Technology

[0002] With the rapid iteration of new energy vehicles, intelligent industrial control equipment, and aerospace electronic systems, electronic instruments, as the core carrier of human-computer interaction, directly determine the safety of user operation and the reliability of equipment operation through their display quality. Therefore, electronic instruments need to undergo optical testing in a timely manner after production to ensure their quality upon leaving the factory.

[0003] The existing optical inspection equipment mainly includes an equipment housing, an XYZ three-axis motion module, a rotary table, a CCD optical inspection module, a laser profile sensor, servo motors, and an industrial control computer system. The XYZ three-axis motion module is fixedly connected to the rotary table. The CCD optical inspection module is connected to the drive shaft of the servo motor through an adjustment bracket. The laser profile sensor is installed next to the CCD optical inspection module, and its detection direction is parallel to the optical axis of the CCD lens. The industrial control computer system is electrically connected to the three-axis motion module, the rotary table, the CCD module, the laser profile sensor, and the servo motors to realize data acquisition and motion control.

[0004] Although existing equipment can achieve automated optical inspection of curved instrument screens, it still has certain technical defects in practical applications: the laser contour sensor in the existing equipment has a response delay problem. When the radius of curvature of the curved screen is small, the angle adjustment of the optical inspection module will lag behind the changes in the surface undulation, which will easily generate inspection errors and reduce the accuracy of the inspection data.

[0005] Therefore, in view of the above situation, there is an urgent need to develop an electronic instrument automatic optical inspection device to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic optical inspection device for electronic instruments to solve the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An automatic optical inspection device for electronic instruments includes an equipment housing, a moving module, a lifting module, a rotating inspection table, and an optical inspection module. The lifting module consists of a lifting cylinder and a lifting frame. The lifting frame is fixed to the output end of the lifting cylinder, and an inspection frame is horizontally mounted on the bottom of the lifting frame. A mounting shaft is horizontally fixed to the outer wall of the optical inspection module, and the mounting shaft is rotatably mounted on the inspection frame. The device also includes:

[0009] The touch adjustment mechanism comprises a Z-shaped touch panel, a lifting sensing component, a horizontal adjustment component, and a slide. The Z-shaped touch panel is located below the optical detection module, and one end of the Z-shaped touch panel is fixed to an arc-shaped plate located directly below the optical detection module. A central hole in the middle of the arc-shaped plate is provided, which faces the detection light emitted by the optical detection module. Touch balls are symmetrically distributed at the bottom of the arc-shaped plate. The other end of the Z-shaped touch panel is connected to the lifting sensing component. The lifting sensing component is installed at the bottom of the slide and connected to the horizontal adjustment component. The slide is fixed to the inside of the detection frame. One end of the horizontal adjustment component is horizontally slidably installed on the slide, and the other end of the horizontal adjustment component is rotatably connected to one end of the intermediate connecting rod.

[0010] The control mechanism is installed in the middle of the detection frame, one end of the control mechanism is rotatably connected to the other end of the middle connecting rod, and the other end of the control mechanism is connected to a lateral connecting seat fixed on one side of the optical detection module.

[0011] The touch adjustment mechanism is used to perceive the contour of the instrument surface in real time and work with the control mechanism to adjust the tilt angle of the optical detection module. The optical detection module changes its tilt angle so that the detection light emitted by it always coincides with the normal of each detection point on the instrument surface screen during its full stroke. The control mechanism changes the rotation stroke of the optical detection module by changing its own structural lever arm ratio.

[0012] As a further technical solution of the present invention, the lifting sensing component includes a Z-shaped rod, a guide seat, an annular plate and a lifting spring. One end of the Z-shaped rod is fixedly connected to a Z-shaped touch panel, and the other end of the Z-shaped rod is vertically slidably mounted on the guide seat and connected to a horizontal adjustment component. An annular plate parallel to the guide seat is fixed on the other end of the Z-shaped rod, and a lifting spring is installed between the annular plate and the guide seat.

[0013] As a further technical solution of the present invention, the horizontal adjustment component includes a trapezoidal block, a slider, and an adjusting spring. The trapezoidal block is vertically disposed inside the slider and fixedly connected to one end of the Z-shaped rod. The inclined end face of the trapezoidal block is slidably engaged with the inner wall of the slider. The slider is horizontally slidably mounted on the slide block. An adjusting spring is installed between one side of the slider and the slide block. The other side of the slider is rotatably connected to the intermediate connecting rod.

[0014] As a further technical solution of the present invention, the elastic force of the adjusting spring is less than the elastic force of the lifting spring.

[0015] As a further technical solution of the present invention, the control mechanism includes a rotating cylinder, a rotating rod, a rotating rod, a rotating cylinder, a locking assembly, a locking component, a rotating shaft, and a limiting seat. One end of the rotating cylinder is rotatably connected to a central connecting rod, and the other end of the rotating cylinder is axially slidably mounted with a rotating rod. A rotating shaft is fixed on one side of the rotating rod, and the rotating shaft is rotatably connected to limiting rotating holes horizontally distributed on the limiting seat. The limiting seat is fixed to the inner side of the detection frame. A conical groove that cooperates with the locking assembly is opened on the other side of the rotating rod. The locking assembly is mounted on the rotating rod. The rotating rod is axially slidably mounted on the rotating cylinder. One end of the rotating cylinder is rotatably connected to a lateral connecting seat. Both the rotating rod and the rotating rod are provided with mounting grooves for mounting the locking assembly. The locking assembly on the rotating rod cooperates with the axially equidistant strip grooves on the rotating cylinder. The locking assembly on the rotating rod cooperates with the axially equidistant strip grooves on the rotating cylinder.

[0016] As a further technical solution of the present invention, the engaging assembly includes a mounting post, an engaging spring, and a strip-shaped locking plate. The mounting post is vertically slidably installed in the mounting groove. An engaging spring is installed between the bottom of the mounting post and the inner wall of the mounting groove. A strip-shaped locking plate that cooperates with the strip-shaped groove is fixed to the top of the mounting post.

[0017] As a further technical solution of the present invention, the locking assembly includes a movable column, a conical block, a locking spring, a magnetic attractor one, and a magnetic attractor two. The movable column is vertically slidably mounted on the rotating rod two. A locking spring is installed between one end of the movable column and one side of the rotating rod two. The other end of the movable column passes through the rotating rod two and is fixedly connected to the conical block. The conical block cooperates with the conical groove, and a magnetic attractor one is fixed on the front end face of the conical block. A magnetic attractor two is fixed on the inner side of the conical groove. The magnetic attractor one and the magnetic attractor two attract each other when energized.

[0018] As a further technical solution of the present invention, the taper of the conical block is smaller than the taper of the conical groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The touch adjustment mechanism can perceive the contour of the instrument surface in real time and cooperate with the control mechanism to adjust the tilt angle of the optical detection module. This ensures that the detection light emitted by the optical detection module always coincides with the normal of each detection point on the instrument surface screen throughout its entire movement, achieving accurate detection of the entire curved surface without blind spots. This reduces measurement errors in the brightness and color of the instrument surface screen, accurately identifies defects such as dead pixels, backlight dark spots, or uneven color on the instrument surface screen, and ensures that the detection data can truly reflect the instrument performance. It eliminates deviations in product quality judgment caused by differences in detection angles, improves the detection quality of the detection device, and ensures that the imaging in the normal direction has no perspective distortion, eliminating the need for complex image correction algorithms, reducing the processing time of detection data, and improving the efficiency of the detection device.

[0021] The control mechanism can change the lever arm ratio of its own structure according to the curvature of the instrument screen. Under the premise that the structure and working state of the touch adjustment mechanism remain unchanged, the control mechanism changes the rotation stroke of the optical detection module by changing the lever arm ratio of its own structure. This meets the requirement of optical detection of instrument screens with different curvatures, ensuring that the detection data can truly reflect the instrument performance, eliminating the deviation in product quality judgment caused by the difference in detection angle, and improving the versatility and convenience of the device.

[0022] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a first-view structural schematic diagram of the electronic instrument automatic optical inspection device provided in an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the electronic instrument automatic optical inspection device from a second perspective, provided in an embodiment of the present invention.

[0025] Figure 3 This is a third-view structural schematic diagram of the electronic instrument automatic optical inspection device provided in an embodiment of the present invention.

[0026] Figure 4 for Figure 2 Enlarged view of the structure of the testing frame and its mounted components.

[0027] Figure 5 for Figure 4 The structural bottom view.

[0028] Figure 6 for Figure 4 Enlarged view of the central touch control mechanism.

[0029] Figure 7 for Figure 6 A magnified view of the Z-shaped touchpad structure from below.

[0030] Figure 8 for Figure 5 Enlarged view of the structure of the lifting sensing component and the horizontal adjustment component.

[0031] Figure 9 for Figure 4 A magnified view of the structure of the central regulatory agency.

[0032] Figure 10 for Figure 9 Exploded view of the structure of the transfer cylinder 1, the rotating rod 1, and the locking assembly.

[0033] Figure 11 for Figure 9 Exploded view of the structure of pivot rod one, pivot rod two, and locking assembly.

[0034] Figure 12 The detection trajectory diagram of the optical detection module provided in the embodiment of the present invention.

[0035] Reference numerals: 100-Equipment housing, 200-Lifting cylinder, 210-Lifting frame, 300-Detection frame, 400-Rotating detection table, 410-Vacuum adsorption module, 500-Optical detection module, 510-Mounting shaft, 520-Side connection seat, 600-Touch adjustment mechanism, 610-Z-type touch panel, 611-Arc plate, 612-Center hole, 613-Touch ball bearing, 620-Lifting sensor assembly, 621-Z-type rod, 622-Guide seat, 623-Annular plate, 624-Lifting spring, 630-Horizontal adjustment assembly, 631-Trapezoidal block, 632-Slide Block, 633-Adjusting spring, 640-Slide seat, 700-Intermediate connecting rod, 800-Control mechanism, 810-Rotating cylinder one, 811-Strip groove, 820-Rotating rod one, 821-Mounting groove, 822-Conical groove, 830-Rotating rod two, 840-Rotating cylinder two, 850-Clamping assembly, 851-Mounting column, 852-Clamping spring, 853-Strip clamping plate, 860-Locking assembly, 861-Moving column, 862-Conical block, 863-Locking spring, 864-Magnetic suction part one, 865-Magnetic suction part two, 870-Rotating shaft, 880-Limiting seat, 881-Limiting rotating hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 merely illustrative and not intended to limit the invention.

[0037] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0038] like Figures 1 to 12 As shown, an automatic optical inspection device for electronic instruments, provided as an embodiment of the present invention, includes a device housing 100, a moving module, a lifting module, a rotating inspection table 400, and an optical inspection module 500. The moving module, lifting module, rotating inspection table 400, and optical inspection module 500 are all located within the device housing 100. A lifting module is installed on the output end of the moving module. The lifting module consists of a lifting cylinder 200 and a lifting frame 210. The lifting cylinder 200 is fixed inside the device housing 100. The lifting frame 210 is fixed on the output end of the lifting cylinder 200. An inspection frame 300 is horizontally installed at the bottom of the lifting frame 210. A mounting shaft 510 is horizontally fixed on the outer wall of the optical inspection module 500. The mounting shaft 510 is rotatably mounted on the inspection frame 300 via bearings. The rotating inspection table 400 is located below the optical inspection module 500, and a vacuum adsorption module 410 is provided in the middle of the rotating inspection table 400. The device also includes:

[0039] A touch adjustment mechanism 600 is provided, comprising a Z-shaped touch panel 610, a lifting sensing component 620, a horizontal adjustment component 630, and a slide 640. The Z-shaped touch panel 610 is located below the optical detection module 500, and one end of the Z-shaped touch panel 610 is fixed to an arc-shaped plate 611 located directly below the optical detection module 500. A central hole 612 in the middle of the arc-shaped plate 611 is provided, and the central hole 612 is directly opposite the detection signal emitted by the optical detection module 500. For measuring light, the bottom of the arc plate 611 is symmetrically distributed with touch ball bearings 613, the other end of the Z-shaped touch plate 610 is connected to the lifting sensor component 620, the lifting sensor component 620 is installed at the bottom of the slide 640 and connected to the horizontal adjustment component 630, the slide 640 is fixed on the inner side of the detection frame 300, one end of the horizontal adjustment component 630 is horizontally slidably installed on the slide 640, and the other end of the horizontal adjustment component 630 is rotatably connected to one end of the intermediate connecting rod 700;

[0040] The control mechanism 800 is installed in the middle of the inner side of the detection frame 300. One end of the control mechanism 800 is rotatably connected to the other end of the intermediate connecting rod 700, and the other end of the control mechanism 800 is connected to the lateral connecting seat 520 fixed on one side of the optical detection module 500.

[0041] Initially, the lifting sensing component 620, under its own elastic force, drives the Z-shaped touchpad 610 downward and moves the horizontal adjustment component 630 to the right. The horizontal adjustment component 630, through the intermediate connecting rod 700, drives the control component to rotate counterclockwise. The control component drives the optical detection module 500 to rotate counterclockwise. The vacuum adsorption module 410 adsorbs the instrument curved screen placed on the rotating detection stage 400. The moving module drives the lifting module to move horizontally and vertically, thereby moving the arc plate 611 on the Z-shaped touchpad 610 to a position facing the central protrusion of the instrument curved screen. The lifting cylinder 200 drives the lifting frame 210 downward. The lifting frame 210 drives the detection frame 300 downward. The detection frame 300 can drive the arc plate 611 on the Z-shaped touchpad 610 downward, so that the touch ball 613 on the arc plate 611 can effectively contact the central protrusion of the instrument curved screen and drive the Z-shaped touchpad 610 downward. The Z-shaped touchpad 610 moves upward, which in turn drives the lifting sensor component 620 to move upward. The lifting sensor component 620 can drive the horizontal adjustment component 630 to move horizontally to the left. The horizontal adjustment component 630, through its leftward movement and its coordination with the intermediate connecting rod 700, can drive the control mechanism 800 to rotate clockwise. The control mechanism 800 drives the optical detection module 500 to rotate clockwise, so that the detection light emitted by the optical detection module 500 passes through the central hole 612 and coincides with the normal of the center of the instrument curved screen, thereby completing the initial alignment of the optical detection module 500 and the instrument curved screen. The coaxial design of the strip-shaped central hole 612 in the middle of the arc plate 611 and the detection light, combined with the symmetrical layout of the touch ball 613, not only realizes the real-time perception of the instrument curved surface contour, but also completely avoids the obstruction of the detection light path, ensuring that the light shines directly on the detection point and reducing the propagation loss of the detection light.

[0042] At this time, the moving module drives the lifting module and the detection frame 300 to move horizontally from the center of the instrument curved screen towards its edge. The detection frame 300 drives the Z-shaped touch panel 610 to move synchronously. Under the elastic force of the lifting sensing component 620, the Z-shaped touch panel 610 remains in contact with the instrument curved screen. During the movement, the Z-shaped touch panel 610 can drive the lifting sensing component 620 to move downwards. The lifting sensing component 620 can drive the horizontal adjustment component 630 to move to the right. The horizontal adjustment component 630, through its rightward movement and its coordination with the intermediate connecting rod 700, can drive the control component to rotate counterclockwise. The control component then drives the light... The 500-degree counterclockwise rotation of the detection module ensures that the detection light beam always coincides with the normal of each detection point on the instrument's curved screen throughout its entire travel, achieving accurate detection across the entire curved surface without blind spots. This reduces measurement errors in the brightness and color of the instrument's curved screen, accurately identifies defects such as dead pixels, backlight spots, or uneven color on the curved screen, and ensures that the detection data truly reflects the instrument's performance. It eliminates deviations in product quality judgment caused by differences in detection angles, improving the detection quality of the device. At the same time, the imaging in the normal direction is free of perspective distortion, eliminating the need for complex image correction algorithms, reducing data processing time, and improving the efficiency of the detection device.

[0043] In a preferred embodiment, the touch ball 613 is preferably made of a ceramic wear-resistant material, which has a low coefficient of friction with the screen surface. This ensures the sensitivity of the curved contour perception while effectively avoiding screen scratches, thus meeting the detection needs of fragile instrument curved screens.

[0044] like Figures 4 to 8 As shown, in a preferred embodiment of the present invention, the lifting sensing component 620 includes a Z-shaped rod 621, a guide seat 622, an annular plate 623, and a lifting spring 624. One end of the Z-shaped rod 621 is fixedly connected to the Z-shaped touch panel 610, and the other end of the Z-shaped rod 621 is vertically slidably mounted on the guide seat 622 and connected to the horizontal adjustment component 630. The other end of the Z-shaped rod 621 is fixed with an annular plate 623 parallel to the guide seat 622, and a lifting spring 624 is installed between the annular plate 623 and the guide seat 622.

[0045] During the initial state or as the Z-shaped touchpad 610 moves from the center of the instrument curved screen to its edge, the lifting spring 624 releases its elastic force and drives the annular plate 623 to move downward. The annular plate 623 drives the Z-shaped rod 621 to move downward, and the Z-shaped rod 621 drives the Z-shaped touchpad 610 and the arc plate 611 to move downward. At the same time, the Z-shaped rod 621 drives the horizontal adjustment component 630 to move to the right. The horizontal adjustment component 630 drives the control mechanism 800 to rotate counterclockwise through the intermediate connecting rod 700, so that the optical detection module 500 is in an inclined state or always perpendicular to the normal of the instrument curved screen. This reduces the measurement error of the brightness and color of the instrument curved screen, accurately identifies defects such as dead pixels, backlight dark spots or uneven color in the instrument curved screen, ensures that the detection data can truly reflect the instrument performance, eliminates the deviation in product quality judgment caused by the difference in detection angle, and improves the detection quality of the detection device.

[0046] During the process of the arc plate 611 contacting the central protrusion of the instrument curved screen, the lifting cylinder 200 and the Z-shaped touch panel 610 cooperate to drive the Z-shaped rod 621 to move upward. The Z-shaped rod 621 drives the annular plate 623 to move upward relative to the detection frame 300. The lifting spring 624 is in a compressed and stored state. The Z-shaped rod 621 can drive the horizontal adjustment component 630 to move to the left by moving upward, thereby driving the control mechanism 800 to rotate clockwise. This causes the optical detection module 500 to return from the tilted state to the vertical downward state, and makes the detection light emitted by the optical detection module 500 perpendicular to the center normal of the instrument curved screen, thus completing the initial calibration.

[0047] like Figures 4 to 8 As shown, in a preferred embodiment of the present invention, the horizontal adjustment component 630 includes a trapezoidal block 631, a slider 632, and an adjusting spring 633. The trapezoidal block 631 is vertically disposed inside the slider 632 and fixedly connected to one end of the Z-shaped rod 621. The inclined end face of the trapezoidal block 631 is slidably engaged with the inner wall of the slider 632. The slider 632 is horizontally slidably mounted on the slide block 640. An adjusting spring 633 is installed between one side of the slider 632 and the slide block 640. The other side of the slider 632 is rotatably connected to the intermediate connecting rod 700.

[0048] The elastic force of the adjusting spring 633 is less than that of the lifting spring 624. The adjusting spring 633 is mainly used to control the slider 632 to always be in contact with the trapezoidal block 631, while the lifting spring 624 is used to control the arc plate 611 on the Z-shaped touch panel 610 to always be in contact with the curved screen of the instrument panel.

[0049] Since the inclined end face of the trapezoidal block 631 faces the optical detection module 500, when it moves downward, the trapezoidal block 631 drives the slider 632 to move to the right on the slide base 640. The slider 632 drives the control mechanism 800 to rotate counterclockwise through the intermediate connecting rod 700, so that the optical detection module 500 is in an inclined state or always perpendicular to the normal of the instrument curved screen, reducing the measurement error of the brightness and color of the instrument curved screen. When the trapezoidal block 631 moves upward, the trapezoidal block 631 drives the slider 632 to move to the left on the slide base 640. The slider 632 drives the control mechanism 800 to rotate clockwise through the intermediate connecting rod 700. The control mechanism 800 drives the optical detection module 500 to rotate clockwise, so that the optical detection module 500 returns from the inclined state to the vertical downward state, and makes the detection light emitted by the optical detection module 500 perpendicular to the center normal of the instrument curved screen, thereby completing the initial calibration.

[0050] In a preferred embodiment, the end face on the inner wall of the slider 632 that slides with the trapezoidal block 631 is also set as an inclined end face, which can reduce the frictional resistance between the two.

[0051] like Figure 4 , Figure 5 , Figures 9 to 11 As shown, in a preferred embodiment of the present invention, the control mechanism 800 includes a rotating cylinder 810, a rotating rod 820, a rotating rod 830, a rotating cylinder 840, a locking assembly 850, a locking assembly 860, a rotating shaft 870, and a limiting seat 880. One end of the rotating cylinder 810 is rotatably connected to the intermediate connecting rod 700, and the rotating rod 820 is axially slidably mounted on the other end of the rotating cylinder 810. A rotating shaft 870 is fixed to one side of the rotating rod 820, and the rotating shaft 870 is rotatably connected to the limiting rotating holes 881 horizontally distributed on the limiting seat 880. The limiting seat 880 is fixed to the inner side of the detection frame 300. The other end of the rotating rod 820... A tapered groove 822 is provided on one side to cooperate with the locking component 860. The locking component 860 is mounted on the second rotating rod 830. The second rotating rod 830 is axially slidably mounted on the second rotating cylinder 840. One end of the second rotating cylinder 840 is rotatably connected to the lateral connecting seat 520. Both the first rotating rod 820 and the second rotating rod 830 are provided with mounting grooves 821 for installing the engaging component 850. The engaging component 850 on the first rotating rod 820 cooperates with the axially equidistant strip grooves 811 on the first rotating cylinder 810. The engaging component 850 on the second rotating rod 830 cooperates with the axially equidistant strip grooves 811 on the second rotating cylinder 840.

[0052] The locking assembly 860 can connect the first rotating rod 820 and the second rotating rod 830 into a whole. The engaging assembly 850 can connect the first rotating cylinder 810 and the first rotating rod 820, and the second rotating cylinder 840 and the second rotating rod 830 into a whole, so that the first rotating cylinder 810, the first rotating rod 820, the second rotating rod 830 and the second rotating cylinder 840 can form a whole V-shaped rod structure. When the slider 632 moves to the right, the slider 632 drives the V-shaped rod structure to rotate counterclockwise through the intermediate connecting rod 700. The V-shaped rod structure can drive the optical detection module 500 to rotate counterclockwise by a certain angle through the lateral connecting seat 520 (this angle can be adapted to different curves). The curved instrument panel (with a tilted surface) ensures that the optical detection module 500 is in a tilted state or always perpendicular to the normal of the curved instrument panel, reducing the measurement error of the brightness and color of the curved instrument panel. When the slider 632 moves to the left, the slider 632 rotates clockwise through the intermediate connecting rod 700 with the V-shaped rod structure. The V-shaped rod structure can drive the optical detection module 500 to rotate clockwise by a certain angle through the lateral connecting seat 520, so that the optical detection module 500 returns from the tilted state to the vertical downward state, and makes the detection light emitted by the optical detection module 500 perpendicular to the center normal of the curved instrument panel, thereby completing the initial calibration.

[0053] When optical inspection of instrument curved screens with different curvatures is required, locking component 860 can release the connection between rotating rod 1 820 and rotating rod 2 830, and engaging component 850 can change the extension length of rotating rod 1 820 and rotating rod 2 830, thereby changing the total length of rotating cylinder 1 810 and rotating rod 1 820 or changing the total length of rotating cylinder 2 840 and rotating rod 2 830, making the lengths on both sides of rotating shaft 870 different, and changing the mating position of rotating shaft 870 with different positions of limiting rotating holes 881 on limiting seat 880, thereby changing the lever arm ratio at both ends of V-shaped rod structure. With the sliding stroke of slider 632 remaining unchanged, the rotation stroke of V-shaped rod structure is changed, thereby changing the rotation stroke of optical inspection module 500, so as to meet the requirement of optical inspection of instrument curved screens with different curvatures, ensuring that the inspection data can truly reflect the instrument performance, eliminating the deviation in product quality judgment caused by the difference in inspection angle, and improving the versatility and convenience of the device.

[0054] In a preferred embodiment, the pivot 870 is concentric with the hinge point of pivot rod 820 and pivot rod 830.

[0055] like Figure 4 , Figure 5 , Figures 9 to 11As shown, in a preferred embodiment of the present invention, the engaging assembly 850 includes a mounting post 851, an engaging spring 852, and a strip-shaped locking plate 853. The mounting post 851 is vertically slidably installed in the mounting groove 821. The engaging spring 852 is installed between the bottom of the mounting post 851 and the inner wall of the mounting groove 821. The top of the mounting post 851 is fixed with a strip-shaped locking plate 853 that cooperates with the strip-shaped groove 811.

[0056] The locking spring 852 drives the mounting post 851 to move outward from the mounting groove 821 by releasing its own elastic force. The mounting post 851 drives the strip plate 853 to move, so that the strip plate 853 can cooperate with the strip groove 811 at different positions, thereby realizing the fixed connection between the rotating rod 820 and the rotating cylinder 810, the rotating cylinder 840 and the rotating rod 830. This limits the total length of the rotating rod 820 and the rotating cylinder 810, and the total length of the rotating cylinder 840 and the rotating rod 830, so as to meet the requirement of the optical inspection module 500 to perform optical inspection on the curved screen of the instrument with different curvatures, ensuring that the inspection data can truly reflect the performance of the instrument and eliminating the deviation in product quality judgment caused by the difference in inspection angle.

[0057] like Figure 4 , Figure 5 , Figures 9 to 11 As shown, in a preferred embodiment of the present invention, the locking assembly 860 includes a movable column 861, a conical block 862, a locking spring 863, a magnetic attractor 864, and a magnetic attractor 865. The movable column 861 is vertically slidably mounted on the rotating rod 830. A locking spring 863 is installed between one end of the movable column 861 and one side of the rotating rod 830. The other end of the movable column 861 passes through the rotating rod 830 and is fixedly connected to the conical block 862. The conical block 862 cooperates with the conical groove 822, and a magnetic attractor 864 is fixed on the front end face of the conical block 862. A magnetic attractor 865 is fixed on the inner side of the conical groove 822. The magnetic attractor 864 and the magnetic attractor 865 attract each other when energized.

[0058] The taper of the conical block 862 is smaller than that of the conical groove 822, and both the outer wall of the conical block 862 and the inner wall of the conical groove 822 are coated with a coating with a high coefficient of friction. This can increase the friction between the two and improve the fixed connection performance between the first rotating rod 820 and the second rotating rod 830.

[0059] When energized, the attraction force generated by the mutual attraction between magnetic component 864 and magnetic component 865 is greater than the elastic force of the locking spring 863, so that the attraction force can drive the conical block 862 to move into the conical groove 822, thereby completing the frictional engagement between the conical block 862 and the conical groove 822, and thus realizing the fixed connection between the rotating rod 820 and the rotating rod 830, and cooperating with the engaging assembly 850 to form an integral V-shaped rod structure;

[0060] When the lever arm ratio of the V-shaped rod structure needs to be adjusted, the magnetic chuck 1 864 and magnetic chuck 2 865 are de-energized. The locking spring 863 releases its elastic force to drive the moving column 861 back. The moving column 861 drives the conical block 862 back to the outside of the conical groove 822, so that the conical block 862 and the conical groove 822 are separated. This releases the connection between the rotating rod 1 820 and the rotating rod 2 830, making it convenient to adjust the lever arm ratio of the V-shaped rod structure. This meets the requirement of the optical inspection module 500 to perform optical inspection on instrument curved screens with different curvatures, ensuring that the inspection data can truly reflect the instrument performance and eliminating the deviation in product quality judgment caused by the difference in inspection angle.

[0061] In a preferred embodiment, both the magnetic chuck 864 and the magnetic chuck 865 are preferably electromagnets.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electronic instrument automatic optical detection equipment, comprising an equipment box, a moving module, a lifting module, a rotating detection table and an optical detection module, the lifting module is composed of a lifting cylinder and a lifting frame, the output end of the lifting cylinder is fixed with the lifting frame, the bottom of the lifting frame is horizontally installed with a detection frame, the outer wall of the optical detection module is horizontally fixed with a mounting shaft, and the mounting shaft is rotationally installed on the detection frame, characterized in that, Also include: The touch adjusting mechanism is composed of a Z-shaped touch plate, a lifting sensing assembly, a horizontal adjusting assembly and a sliding seat. The Z-shaped touch plate is located below the optical detection module. One end of the Z-shaped touch plate is fixed with an arc-shaped plate located directly below the optical detection module. A strip-shaped central hole is formed in the middle of the arc-shaped plate. The central hole is opposite to the detection light emitted by the optical detection module. The bottom of the arc-shaped plate is symmetrically distributed with touch balls. The other end of the Z-shaped touch plate is connected with the lifting sensing assembly. The lifting sensing assembly is installed at the bottom of the sliding seat and connected with the horizontal adjusting assembly. The sliding seat is fixed to the inner side of the detection frame. One end of the horizontal adjusting assembly is horizontally and slidingly installed on the sliding seat. The other end of the horizontal adjusting assembly is rotationally connected with one end of the intermediate connecting rod. The control mechanism is installed in the middle of the detection frame. One end of the control mechanism is rotationally connected with the other end of the intermediate connecting rod. The other end of the control mechanism is connected with a lateral connecting seat fixed on one side of the optical detection module. The touch adjusting mechanism is used for real-time sensing of the instrument curved surface profile and cooperating with the control mechanism to adjust the inclination angle of the optical detection module. The optical detection module changes the inclination angle to keep the detection light coincident with the normal line of each detection point of the instrument curved surface screen in the full stroke movement. The control mechanism changes the rotation stroke of the optical detection module by changing the structural arm ratio.

2. The electronic gauge automatic optical inspection apparatus according to claim 1, characterized by, The lifting sensing assembly includes a Z-shaped rod, a guide seat, a ring-shaped plate and a lifting spring. One end of the Z-shaped rod is fixedly connected with the Z-shaped touch plate. The other end of the Z-shaped rod is vertically and slidingly installed on the guide seat and connected with the horizontal adjusting assembly. The other end of the Z-shaped rod is fixed with the ring-shaped plate parallel to the guide seat. The lifting spring is installed between the ring-shaped plate and the guide seat.

3. The electronic gauge automated optical inspection apparatus of claim 2, wherein, The horizontal adjusting assembly includes a trapezoidal block, a sliding block and an adjusting spring. The trapezoidal block is vertically arranged in the sliding block and fixedly connected with one end of the Z-shaped rod. The inclined end surface of the trapezoidal block is slidingly matched with the inner wall of the sliding block. The sliding block is horizontally and slidingly installed on the sliding seat. The adjusting spring is installed between one side of the sliding block and the sliding seat. The other side of the sliding block is rotationally connected with the intermediate connecting rod.

4. The electronic gauge auto-optical inspection apparatus according to claim 3, wherein The elastic force of the adjusting spring is smaller than that of the lifting spring.

5. The electronic gauge auto-optical inspection apparatus according to claim 1, wherein The regulating mechanism comprises a rotating drum one, a rotating rod one, a rotating rod two, a rotating drum two, a clamping assembly, a locking assembly, a rotating shaft and a limiting seat, one end of the rotating drum one is rotationally connected with an intermediate connecting rod, the other end of the rotating drum one is axially slidably installed with the rotating rod one, one side of the rotating rod one is fixed with the rotating shaft, the rotating shaft is rotationally connected with a limiting rotating hole horizontally distributed on the limiting seat, the limiting seat is fixed on the inner side of a detection frame, the other side of the rotating rod one is provided with a tapered recess matched with the locking assembly, the locking assembly is installed on the rotating rod two, the rotating rod two is axially slidably installed on the rotating drum two, one end of the rotating drum two is rotationally connected with a lateral connecting seat, the rotating rod one and the rotating rod two are both provided with an installation slot for installing the clamping assembly, the clamping assembly on the rotating rod one is matched with a strip-shaped slot axially and equidistantly provided on the rotating drum one, and the clamping assembly on the rotating rod two is matched with a strip-shaped slot axially and equidistantly provided on the rotating drum two.

6. The electronic gauge auto-optical inspection apparatus according to claim 5, wherein The clamping assembly comprises an installation column, a clamping spring and a strip-shaped clamping plate, the installation column is vertically slidably installed in the installation slot, the clamping spring is installed between the bottom of the installation column and the inner wall of the installation slot, and the top of the installation column is fixed with the strip-shaped clamping plate matched with the strip-shaped slot.

7. The electronic gauge auto-optical inspection apparatus according to claim 5, wherein The locking assembly comprises a moving column, a tapered block, a locking spring, a magnetic attraction piece one and a magnetic attraction piece two, the moving column is vertically slidably installed on the rotating rod two, the locking spring is installed between one end of the moving column and one side of the rotating rod two, the other end of the moving column penetrates through the rotating rod two and is fixedly connected with the tapered block, the tapered block is matched with the tapered recess, the magnetic attraction piece one is fixed on the front end surface of the tapered block, the magnetic attraction piece two is fixed on the inner side of the tapered recess, and the magnetic attraction piece one and the magnetic attraction piece two are attracted to each other in the electrified state.

8. The electronic gauge auto-optical inspection apparatus according to claim 7, wherein The taper of the tapered block is smaller than the taper of the tapered recess.

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