Backlight detection device

Abstract

The present invention relates to the field of backlight detection technology, specifically a backlight detection device, including a backlight detection rack, a group of detection instrument mounting ring frames are arranged on the outside of the backlight detection rack, a plurality of detection instrument mounting plates are installed at equal intervals in a ring inside the detection instrument mounting ring frame, different types of backlight detection tools are detachably installed on the detection instrument mounting plates at different positions, and the detection ends of the backlight detection tools are all facing the backlight detection rack; the backlight detection rack includes a rotating lifting base plate, a rotating assembly is arranged on the inside of the rotating lifting base plate, a lifting assembly is arranged in the middle of the rotating assembly, and a plurality of groups of backlight detection clamping mechanisms are detachably installed at equal intervals in a ring around the rotating lifting base plate, and the backlight detection clamping mechanisms are used to automatically clamp the backlight in a vertical angle. By placing multiple groups of backlights on the inside of the detection instrument mounting ring frame for rotation and lifting, rapid coverage and multi-category detection of multiple backlights can be achieved simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of backlight detection, in particular to a backlight detection device. Background Art

[0002] Advertising machine backlight testing generally refers to the process of inspecting or monitoring the backlight system of advertising machines (such as LCD advertising machines and digital signage). The backlight is a crucial component of liquid crystal displays (LCDs), providing the light source for viewing on-screen content. The proper functioning of the backlight system directly impacts the display quality and user experience of the advertising machine. In LCD advertising machines, the LCD screen itself does not emit light and requires a backlight system to provide the light source. The backlight is typically composed of LED light strips or cold cathode fluorescent lamps (CCFLs) located behind the LCD screen. The brightness, uniformity, and stability of the backlight directly impact the display quality of the screen.

[0003] The main purpose of backlight testing is to ensure the normal operation of the backlight system and to promptly identify and resolve potential problems. Specifically, it includes: Brightness testing: Checking whether the backlight brightness meets the standard and whether it is too dark or too bright.

[0004] Uniformity test: Check whether the backlight is uniform and whether there are dark areas or bright spots.

[0005] Fault detection: Check whether there is any fault in the backlight system, such as LED lamp damage, drive circuit problem, etc.

[0006] Lifespan assessment: Evaluate the service life of the backlight by detecting the attenuation of the backlight.

[0007] When performing backlight testing, various testing tools are generally used, including: luminance meter, colorimeter, optical imaging luminance meter, spectroradiometer, backlight tester, etc. When using these instruments for testing, in most cases, manual handheld operation is required to perform mobile testing on the backlight of the advertising machine. Although the backlight can be well tested, handheld operation has problems such as poor accuracy, measurement omissions, and slow speed. In addition, when facing the backlight testing of large-scale processing and production of advertising machines, it is difficult to perform various tests quickly and efficiently.

[0008] Therefore, in view of the above-mentioned problems, the present technical solution proposes a backlight detection device. Summary of the Invention

[0009] The object of the present invention is to provide a backlight detection device to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: a backlight detection device, comprising a backlight detection frame, which is used to simultaneously mount multiple sets of backlights and control the backlights to rotate and lift. A set of detection instrument mounting ring frames are provided on the outside of the backlight detection frame, and a plurality of detection instrument mounting plates are installed at equal intervals in a circular manner on the inside of the detection instrument mounting ring frames. Different types of backlight detection tools are detachably mounted on the detection instrument mounting plates at different positions, and the detection ends of the backlight detection tools are all facing the backlight detection frame.

[0011] The backlight detection frame includes a rotating lifting base, a rotating component is arranged on the inside of the rotating lifting base, a lifting component is arranged in the middle of the rotating component, and multiple groups of backlight detection clamping mechanisms are detachably installed in a circular manner at equal intervals around the rotating lifting base. The backlight detection clamping mechanism is used to automatically clamp the backlight in a vertical angle, with the backlight to be tested facing the backlight detection tool.

[0012] Preferably, the rotating lifting base includes a circular mounting ring, the circumferential outer wall of the circular mounting ring is detachably connected to the backlight detection clamping mechanism, and the inner side is connected to the rotating component, the rotating component includes an outer gear ring fixedly mounted on the inner side of the circular mounting ring, the inner side of the outer gear ring is meshed with an inner gear ring, a group of mounting collars are arranged at the center of the inner gear ring, the circumferential outer walls of the mounting collars are fixedly connected to the inner side of the inner gear ring through multiple groups of evenly distributed support rods, a group of output spindles are limitedly plugged in the center of the mounting collar, a positioning slide rail 2 is provided on the inner side wall of the mounting collar, a positioning key 2 is provided on the outer side wall of the output spindle corresponding to the positioning slide rail 2, the positioning key 2 is placed in the positioning slide rail 2 and slides axially, and the top of the output spindle is connected to the main servo motor.

[0013] Preferably, the lifting assembly includes a hollow screw sleeved on the outside of the output main shaft above the mounting collar, a nut 1 is threadedly connected to the hollow screw, and a guide device for limiting its rotation is provided on the nut 1, and a group of bottom bevel gears are installed on the top of the hollow screw, and a side bevel gear is vertically meshed with a side bevel gear on one side of the bottom bevel gear, and a group of movable bevel gears that are sleeved on the outside of the output main shaft and move up and down along the output main shaft are adjustably meshed on one side of the upper side of the side bevel gear. A circle of limited rotating slide rail is provided on the top of the movable bevel gear, and a slider is slidably connected inside the limited rotating slide rail. The top of the slider is connected to an electric telescopic rod, and the top of the electric telescopic rod is fixed to the outer wall of the main servo motor through a connecting rod, and a positioning slide rail is provided on the inside of the movable bevel gear, and a positioning key 1 is provided on the outer wall of the output main shaft corresponding to the positioning slide rail.

[0014] Preferably, a plurality of connecting rods are installed downwardly in a circular manner at equal intervals on the outer wall at the bottom of the nut, the bottom end of the connecting rod extends to the top of the mounting collar and is installed with a limited rotation ring, a limited rotation groove is provided in the top wall of the mounting collar corresponding to the limited rotation ring, and the limited rotation ring is placed inside the limited rotation groove for rotation.

[0015] Preferably, two sets of anti-separation components are symmetrically arranged on the upper and lower parts of the sides where the inner gear ring and the outer gear ring are close to each other. The anti-separation components include a support ring opened on the inner side of the outer gear ring and a support slide rail on the outer side wall of the inner gear ring. The support ring is placed in the support slide rail for rotation.

[0016] Preferably, a plurality of clamping hole groups are evenly opened on the circumferential outer wall of the circular mounting ring, and the clamping hole groups are connected to the backlight detection clamping mechanism in a clamping and detachable manner;

[0017] The backlight detection clamping mechanism includes a mounting base with a rectangular structure, a mounting bar installed in the middle of the back of the mounting base, an arc-shaped bayonet plate installed in the middle of the mounting bar, and multiple bayonet pins evenly installed on the outer wall of the arc-shaped bayonet plate. The bayonet pins are connected to the card slots in the card hole group in a card-type manner.

[0018] Preferably, two groups of swing plates are symmetrically arranged on the upper and lower sides of the mounting base plate, and the two groups of swing plates are commonly connected to a group of movable connecting rods toward the middle of the side wall of the mounting bar. The movable connecting rods are distributed on one side of the mounting base plate and are connected to a nut 2. The middle part of the nut 2 is threadedly connected to a lead screw distributed perpendicular to the mounting base plate, and the end of the lead screw is connected to an auxiliary clamping servo motor fixed on the mounting base plate. A guide device for limiting its rotation is provided on the nut 2.

[0019] The cam is fixedly provided with two guide rails on the outer wall of the two guide rails, and the guide rails are connected with the two guide rails at two ends of the cam, and the guide rails are connected with the two guide rails at the ends of the cam.

[0020] Preferably, a group of adjusting parts is provided in the middle of the second swing connecting rod, and the adjusting parts include two groups of screws, a group of screw barrels are commonly threadedly connected between the two groups of screws, and the ends of the screws away from the screw barrels are connected to each other through connecting columns.

[0021] Compared with the prior art, the present invention has the following advantages: by installing multiple sets of backlight detection tools on the inner side of the detection instrument mounting ring frame, then placing the backlight detection rack on the inner side of the detection instrument mounting ring frame, and then using multiple sets of backlight detection clamping mechanisms to perform one-button installation and positioning of the backlight, it is possible to simultaneously perform multiple category inspections on multiple sets of backlights, thereby ensuring the efficiency of the inspection;

[0022] By setting the backlight detection rack to a structure that can rotate and lift, it is ensured that the multiple sets of backlights installed can receive detection from different tools. At the same time, the backlight can be adjusted for coverage detection to ensure the accuracy and adequacy of the detection;

[0023] By setting up a single set of main servo motors to control the synchronous operation of the lifting component and the rotating component, the device's conversion and utilization rate of kinetic energy can be greatly improved. When clamping the backlight, one-button fixation and separation are adopted, which to a certain extent improves the mechanical performance and operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a backlight detection device.

[0025] Figure 2 This is a schematic diagram of the main structure of a backlight detection device.

[0026] Figure 3 This is a schematic diagram of the top view of a backlight detection device.

[0027] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of A in the figure.

[0028] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of C in the middle.

[0029] Figure 6 This is a first-perspective structural diagram of a backlight detection clamping mechanism in a backlight detection device.

[0030] Figure 7 This is a second perspective structural schematic diagram of a backlight detection clamping mechanism in a backlight detection device.

[0031] Figure 8 for Figure 6 Schematic diagram of the enlarged structure of B.

[0032] Figure 9 for Figure 8 Schematic diagram of the enlarged structure of B1.

[0033] Among them: detection instrument mounting ring frame 10, detection instrument mounting plate 11, backlight detection clamping mechanism 12, main servo motor 13, output spindle 14, connecting rod 15, mounting collar 16, support rod 17, inner gear ring 18, outer gear ring 19, nut 1 20, hollow screw 21, limit rotation ring 22, limit rotation groove 23, electric telescopic rod 24, mobile bevel gear 25, side bevel gear 26, bottom bevel gear 27, L-shaped fixing rod 29, mounting base plate 30, mounting bar 31, arc-shaped bayonet plate 32, card Pin 33, slot 34, auxiliary clamping servo motor 35, screw 36, nut 2 37, movable connecting rod 38, swing plate 39, swing slide 40, swing pin 41, main swing rod 42, rotating shaft 1 43, slave swing rod 1 44, rotating shaft 2 45, rotating shaft 3 46, sleeve 2 47, slave swing rod 2 48, swing connecting rod 1 49, swing connecting rod 2 50, adjusting part 51, screw barrel 510, screw 511, connecting column 512, splint 52, sleeve 1 53, splint base 54. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] See also Figure 1-Figure 3 A backlight detection device includes a backlight detection rack for simultaneously mounting multiple backlights and controlling the rotation and lifting of the backlights. A set of detection instrument mounting ring frames 10 are provided on the outside of the backlight detection rack. Multiple detection instrument mounting plates 11 are evenly spaced and mounted in a circular pattern on the inside of the detection instrument mounting ring frames 10. Different types of backlight detection tools are detachably mounted on the detection instrument mounting plates 11 at different positions. The detection ends of the backlight detection tools are all facing the backlight detection rack, and multiple categories of detection are performed on the backlights mounted thereon.

[0039] The backlight detection frame includes a rotating and lifting base plate, a rotating component is arranged on the inner side of the rotating and lifting base plate, and a lifting component is arranged in the middle of the rotating component. At the same time, multiple groups of backlight detection clamping mechanisms 12 are detachably installed in a circular manner at equal intervals around the rotating and lifting base plate. The backlight detection clamping mechanism 12 is used to automatically clamp the backlight in a vertical angle, with the backlight to be tested facing the backlight detection tool. That is, by placing multiple groups of backlights on the inner side of the detection instrument mounting ring frame 10 for rotation and lifting, rapid coverage and multi-category detection of multiple backlights can be achieved at the same time.

[0040] See Figure 5 The rotating and lifting base includes a circular mounting ring, which is detachably connected to the backlight detection clamping mechanism 12 on the circumferential outer wall of the circular mounting ring, and is connected to the rotating assembly on the inner side. The rotating assembly includes an outer gear ring 19 fixedly mounted on the inner side of the circular mounting ring, and an inner gear ring 18 is meshed with the inner side of the outer gear ring 19. A group of mounting collars 16 are provided at the center of the inner gear ring 18. The circumferential outer walls of the mounting collar 16 are fixedly connected to the inner side of the inner gear ring 18 through multiple groups of evenly distributed support rods 17. A group of output spindles 14 are limitedly plugged in the center of the mounting collar 16. A positioning slide rail 2 is provided on the inner wall of the mounting collar 16. Positioning slide rail 2 A second positioning key is provided on the outer side wall of the corresponding output spindle 14. The second positioning key is placed in the second positioning slide rail and slides axially. The top of the output spindle 14 is connected to the main servo motor 13. That is, when the main servo motor 13 rotates, the output spindle 14 is driven to rotate, and then, under the restriction of the second positioning key and the second positioning slide rail, the mounting collar 16 is synchronously driven to rotate. In this way, under the connection and engagement of the support rod 17, the inner gear ring 18, and the outer gear ring 19, the circular mounting ring is driven to rotate, and then the outer backlight detection clamping mechanism 12 is driven to rotate, thereby controlling the backlight installed on the backlight detection clamping mechanism 12 to perform rotation detection;

[0041] See Figure 4The lifting assembly includes a hollow screw 21 which is sleeved on the outside of the output spindle 14 above the mounting collar 16. A nut 20 is threadedly connected to the hollow screw 21. The nut 20 is provided with a guide device for limiting its rotation. A group of bottom bevel gears 27 are installed on the top of the hollow screw 21. A side bevel gear 26 is vertically meshed with the bottom bevel gear 27 on one side. A group of mobile bevel gears 25 that are sleeved on the outside of the output spindle 14 and move up and down along the output spindle 14 are adjustable on one side of the upper part of the side bevel gear 26. By controlling whether the mobile bevel gear 25 is meshed with the side bevel gear 26, the transmission of the rotational kinetic energy of the output spindle 14 between the hollow screw 21 is controlled, and the mobile bevel gears 25 are meshed with the side bevel gears 26. A circle of limited rotating slide rail is provided on the top of the wheel 25, and a slider is slidably connected inside the limited rotating slide rail. The top of the slider is connected to an electric telescopic rod 24, and the top of the electric telescopic rod 24 is fixed to the outer wall of the main servo motor 13 through a connecting rod. That is, by controlling the electric telescopic rod 24, the mobile bevel gear 25 is driven to move up and down along the output main shaft 14. At the same time, a positioning slide rail 1 is provided on the inside of the mobile bevel gear 25, and a positioning key 1 is provided on the outer wall of the output main shaft 14 corresponding to the positioning slide rail 1. By sliding the positioning key 1 in the positioning slide rail 1, the kinetic energy of the rotation of the output main shaft 14 is transmitted to the hollow screw 21 through the mobile bevel gear 25, the side bevel gear 26, and the bottom bevel gear 27.

[0042] A plurality of connecting rods 15 are installed downwardly on the outer wall of the bottom of the nut 20 at equal intervals in a ring shape, the bottom end of the connecting rod 15 extends to the top of the mounting collar 16 and is installed with a limited rotation ring 22, and a limited rotation groove 23 is provided in the top wall of the mounting collar 16 corresponding to the limited rotation ring 22, and the limited rotation ring 22 is placed inside the limited rotation groove 23 for rotation. Therefore, when the nut 20 moves up and down along the hollow screw 21, the mounting collar 16 is driven up and down by the connection of the connecting rod 15, so as to control the backlight on the backlight detection clamping mechanism 12 to be able to perform covering detection along the backlight detection tool on the detection instrument mounting ring frame 10, thereby realizing the use of the rotational kinetic energy of the main servo motor 13 and the lifting and lowering of the electric telescopic rod 24 to adjust the height of the backlight detection clamping mechanism 12;

[0043] Specifically, the rear wheel shaft is installed in the middle of the outer wall of the side bevel gear 26, and the wheel shaft is positioned on the outer wall of the main servo motor 13 through the L-shaped fixing rod 29;

[0044] Specifically, two sets of anti-separation components are symmetrically arranged on the upper and lower parts of the sides where the inner gear ring 18 and the outer gear ring 19 are close to each other. The anti-separation components include a support ring opened on the inner side of the outer gear ring 19 and a support slide rail on the outer side wall of the inner gear ring 18. The support ring is placed in the support slide rail and rotates, that is, to prevent the outer gear ring 19 from separating from the inner gear ring 18 when driving the mounting ring 16 to move up and down, and also to keep the height of the circular mounting ring adjusted synchronously when the mounting ring 16 moves up and down.

[0045] In the embodiment of the present invention, the backlight detection tool includes a luminance meter, a colorimeter, an optical imaging luminance meter, a spectroradiometer, a backlight tester, etc.;

[0046] It should be noted that, although the support and positioning of the main servo motor 13, the output spindle 14 and the circular mounting ring and other structures are not elaborated in detail, they can be achieved with the help of existing conventional structures. Since they will not affect the smooth implementation of this technical solution, even if they are not elaborated in detail, it will not affect the integrity of this technical solution.

[0047] In one embodiment of the present invention, a plurality of clamping hole groups are evenly opened on the circumferential outer wall of the circular mounting ring, and the clamping hole groups are detachably connected to the backlight detection clamping mechanism 12 in a clamping manner;

[0048] See Figure 1 、 Figure 6-Figure 8 The backlight detection clamping mechanism 12 includes a mounting base 30 with a rectangular structure. A mounting bar 31 is mounted on the middle of the back of the mounting base 30. An arc-shaped bayonet plate 32 is mounted in the middle of the mounting bar 31. A plurality of bayonet pins 33 are evenly mounted on the outer wall of the arc-shaped bayonet plate 32. The bayonet pins 33 are connected to the bayonet slots 34 in the bayonet hole group by snapping. By snapping the bayonet pins 33 and the bayonet slots 34 together, the backlight detection clamping mechanism 12 can be quickly connected and disassembled with the circular mounting ring.

[0049] Two groups of swing plates 39 are symmetrically provided on the upper and lower sides of the mounting base 30. The two groups of swing plates 39 are connected to a group of movable connecting rods 38 facing the middle of the side wall of the mounting bar 31. The movable connecting rods 38 are distributed on one side of the mounting base 30 and are connected to a second nut 37. The middle part of the second nut 37 is threadedly connected to a lead screw 36 distributed perpendicular to the mounting base 30. The end of the lead screw 36 is connected to an auxiliary clamping servo motor 35 fixed to the mounting base 30. The second nut 37 is provided with a guide device for limiting its rotation. When the auxiliary clamping servo motor 35 is started, the lead screw 36 is driven to rotate, thereby controlling the second nut 37 to move back and forth along the lead screw 36. Then, under the connection of the movable connecting rod 38, the upper and lower groups of swing plates 39 are driven to move;

[0050] A clamping plate base 54 extending outward is fixedly mounted on each of the four corners of the outer wall of the mounting base 30. A swinging chute 40 is symmetrically provided on both sides of the swinging plate 39 and distributed along the length direction of the swinging plate 39. A swinging pin 41 is swingably provided inside the swinging chute 40. The outer end of the swinging pin 41 is connected to a main swinging rod 42. The end of the main swinging rod 42 away from the swinging pin 41 is connected to a set of rotating shafts 1 43. The end of the rotating shaft 1 43 away from the swinging chute 40 moves through the clamping plate base 54. A sleeve 1 53 is fixedly mounted on the rotating shaft 1 43 on one side of the splint base 54. Two slave swing rods 1 44 are symmetrically mounted on the outer wall of the sleeve 1 53. At the same time, a rotating shaft 2 45 and a rotating shaft 3 46 are rotatably connected in parallel at the end of the splint base 54 away from the rotating shaft 1 43. The rotating shaft 2 45 and the rotating shaft 3 46 are both fixedly mounted with a set of sleeves 2 47. Two sets of slave swing rods 2 48 are also symmetrically mounted on the outer walls of the two sets of sleeves 2 47. The two sets of slave swing rods 2 48 are ... The ends of the slave swing rod 48 on one side of the vertical center plane are symmetrically fixed with clamping plates 52, and the two groups of slave swing rods 48 on the other side are respectively connected to the two groups of slave swing rods 1 44 at both ends of the sleeve 1 53 by the swing connecting rod 1 49 and the swing connecting rod 2 50 in a cross-rotation manner. That is, when the swing plate 39 is pushed by the movable connecting rod 38, the swing slide 40 is controlled to drive the swing pin 41 to swing, and then, under the connection of the main swing rod 42, the rotating shaft 1 43 and the sleeve 1 53 are driven to rotate, and then the sleeve 2 47 is synchronously controlled to rotate by the connection between the slave swing rod 1 44, the swing connecting rod 1 49 and the swing connecting rod 2 50, so as to drive the two groups of clamping plates 52 at the ends of the slave swing rod 2 48 to swing closer or farther away from each other, and then clamp the backlight placed therein, and then, under the clamping action of the four pairs of clamping plates 52, the backlight is quickly clamped, fixed or released and separated, so as to facilitate the position adjustment of the backlight, etc., under the control of the single group of auxiliary clamping servo motor 35;

[0051] Specifically, a set of adjusting members 51 is provided in the middle of the second swing connecting rod 50. The adjusting members 51 are used to adjust the initial length of the second swing connecting rod 50, thereby adjusting the rotation angle of the second sleeve 47, and further controlling the swing clamping stroke of the two sets of clamping plates 52, so as to facilitate stable clamping and fixing of backlights of different widths within a certain range.

[0052] As a preferred embodiment of the present invention, see Figure 9 The adjusting member 51 includes two sets of screws 511, and a set of screw barrels 510 are commonly threadedly connected between the two sets of screws 511. The ends of the screws 511 away from the screw barrels 510 are connected to 50 through connecting columns 512. By rotating 510, the lengths of the screws 511 at both ends are adjusted, thereby adjusting the length of 50.

[0053] The working principle of the present invention is: in the idle place of this device, all the above-mentioned driving parts, which refer to power elements, electrical components and adaptive power supplies, are connected through wires, and the electrical connections are completed in a working order between each electrical component. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control. During operation, multiple groups of backlights to be detected are placed in each group of backlight detection clamping mechanisms 12, that is, when positioning, the auxiliary clamping servo motor 35 is started to drive the lead screw 36 to rotate, and then the nut 2 37 is controlled to move outward. Under the connection of the moving connecting rod 38, the swing plate 39 is controlled to be pushed outward, and then the swing pin 41 is used to swing in the swing slot 40 to control the rotation of the rotating shaft 1 43. Then, under the swing connection of the swing connecting rod 1 49 and the swing connecting rod 2 50, the swing from the swing rod 2 48 is controlled to swing, and then the splint is driven. 52 are brought close to each other to clamp and fix the backlight, and then the corresponding backlight detection tool is installed in the detection instrument mounting plate 11 on the detection instrument mounting ring frame 10. Then, in the detection stage, the output spindle 14 is driven to rotate by starting the main servo motor 13, and then under the limited rotation of the mounting ring 16 and the output spindle 14, the inner gear ring 18 is controlled to drive the outer gear ring 19 to rotate, thereby driving the circular mounting ring to rotate, and then driving the backlight detection clamping mechanism 12 to rotate, so that the backlight on it can be detected by different detection tools, and by controlling the electric telescopic rod 24 to drive the moving bevel gear 25 to rise and fall, and then under the connection of the side bevel gear 26, the bottom bevel gear 27 and the connecting rod 15, the height of the mounting ring 16 is adjusted, and then the inner gear ring 18 and the outer gear ring 19 are synchronously driven to move up and down, thereby adjusting the height of the backlight, and ensuring that the backlight detection tool can fully cover the backlight for detection.

[0054] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A backlight detection device, characterized in that: The invention comprises a backlight detection frame for simultaneously installing multiple sets of backlights and controlling the backlights to rotate and lift. A set of detection instrument mounting ring frames (10) are arranged on the outside of the backlight detection frame. Multiple detection instrument mounting plates (11) are evenly spaced and mounted in a circular manner on the inside of the detection instrument mounting ring frame (10). Different types of backlight detection tools are detachably mounted on the detection instrument mounting plates (11) at different positions. The detection ends of the backlight detection tools are all facing the backlight detection frame. The backlight detection frame includes a rotating lifting base plate, a rotating assembly is provided inside the rotating lifting base plate, a lifting assembly is provided in the middle of the rotating assembly, and multiple groups of backlight detection clamping mechanisms (12) are detachably installed in an annular manner at equal intervals around the rotating lifting base plate. The backlight detection clamping mechanisms (12) are used to automatically clamp the backlight so that it is placed at a vertical angle, with the backlight to be tested facing the backlight detection tool; The rotary lifting base includes a circular mounting ring, the circumferential outer wall of the circular mounting ring is detachably connected to the backlight detection clamping mechanism (12), and the inner side is connected to the rotating component, the rotating component includes an outer gear ring (19) fixedly mounted on the inner side of the circular mounting ring, the inner side of the outer gear ring (19) is meshed with an inner gear ring (18), a group of mounting collars (16) are arranged at the center of the inner gear ring (18), the circumferential outer walls of the mounting collars (16) are fixedly connected to the inner side of the inner gear ring (18) through multiple groups of evenly distributed support rods (17), a group of output spindles (14) are limitedly plugged in the center of the mounting collar (16), a positioning slide rail 2 is provided on the inner side wall of the mounting collar (16), a positioning key 2 is provided on the outer side wall of the output spindle (14) corresponding to the positioning slide rail 2, the positioning key 2 is placed in the inner side of the positioning slide rail 2 and slides axially, and the top of the output spindle (14) is connected to the main servo motor (13); The lifting assembly includes a hollow screw (21) sleeved on the outside of the output main shaft (14) above the mounting collar (16), a nut (20) is threadedly connected to the hollow screw (21), and a guide device for limiting its rotation is provided on the nut (20), and a group of bottom bevel gears (27) are installed on the top of the hollow screw (21), and a side bevel gear (26) is vertically meshed on one side of the bottom bevel gear (27), and a group of side bevel gears (26) are adjustable and meshed along the upper side of the output main shaft ( 14) outside and moving up and down along the output main shaft (14), the top of the moving bevel gear (25) is provided with a circle of limited rotation slide rail, the internal sliding connection of the limited rotation slide rail is provided with a slider, the top of the slider is connected to the electric telescopic rod (24), the top of the electric telescopic rod (24) is fixed to the outer wall of the main servo motor (13) through a connecting rod, the inside of the moving bevel gear (25) is provided with a positioning slide rail 1, and a positioning key 1 is provided on the outer wall of the output main shaft (14) corresponding to the positioning slide rail 1.

2. The backlight detection device according to claim 1, characterized in that: A plurality of connecting rods (15) are installed downwardly at equal intervals in a circular manner on the outer wall of the bottom of the nut (20). The bottom ends of the connecting rods (15) extend to the top of the mounting collar (16) and are installed with a limited rotation ring (22). A limited rotation groove (23) is provided in the top wall of the mounting collar (16) corresponding to the limited rotation ring (22). The limited rotation ring (22) is placed inside the limited rotation groove (23) and rotates.

3. The backlight detection device according to claim 2, characterized in that: Two sets of anti-separation components are symmetrically arranged on the upper and lower parts of the side surfaces of the inner gear ring (18) and the outer gear ring (19) close to each other, and the anti-separation components include a support ring opened on the inner side of the outer gear ring (19) and a support slide rail on the outer side wall of the inner gear ring (18), and the support ring is placed in the support slide rail for rotation.

4. The backlight detection device according to claim 3, characterized in that: A plurality of clamping hole groups are evenly formed on the circumferential outer wall of the circular mounting ring, and the clamping hole groups are connected to the backlight detection clamping mechanism (12) in a clamping and detachable manner; The backlight detection clamping mechanism (12) comprises a mounting base plate (30) having a rectangular structure, a mounting bar (31) being mounted on the middle of the back of the mounting base plate (30), an arc-shaped bayonet plate (32) being mounted on the middle of the mounting bar (31), a plurality of bayonet pins (33) being evenly mounted on the outer wall of the arc-shaped bayonet plate (32), and the bayonet pins (33) being bayonet-connected to the bayonet slots (34) in the bayonet hole group.

5. The backlight detection device according to claim 4, characterized in that: Two groups of swing plates (39) are symmetrically arranged on the upper and lower sides of the mounting base plate (30), and the two groups of swing plates (39) are connected to a group of movable connecting rods (38) toward the middle of the side wall of the mounting bar (31). The movable connecting rods (38) are distributed on one side of the mounting base plate (30) and are connected to a second nut (37). The middle part of the second nut (37) is threadedly connected to a lead screw (36) distributed perpendicular to the mounting base plate (30), and the end of the lead screw (36) is connected to an auxiliary clamping servo motor (35) fixed on the mounting base plate (30). The second nut (37) is provided with a guide device for limiting its rotation.

6. The backlight detection device according to claim 5, characterized in that: The four corners of the outer wall of the mounting base (30) are fixedly mounted with a splint base (54) extending outward, and the two sides of the swing plate (39) are symmetrically provided with swinging slots (40) distributed along the length direction of the swing plate (39), and the swinging slot (40) is swingably provided with a swinging pin (41) inside, and the outer end of the swinging pin (41) is connected to a main swinging rod (42), and the end of the main swinging rod (42) away from the swinging pin (41) is connected to a group of rotating shafts (43), and the end of the rotating shaft (43) away from the swinging slot (40) moves through the splint base (54), and a sleeve (53) is fixedly mounted on the rotating shaft (43) on one side of the splint base (54), and a sleeve (53) is symmetrically arranged on the outer wall of the sleeve (53). Two slave swing rods (44) are installed, and the end of the clamp base (54) away from the rotating shaft (43) is connected to the rotating shaft (45) and the rotating shaft (46) in parallel. The rotating shaft (45) and the rotating shaft (46) are fixedly covered with a set of sleeves (47). Two sets of slave swing rods (48) are also symmetrically installed on the outer walls of the two sets of sleeves (47). The two sets of slave swing rods (48) on the side of the vertical center plane of the swing plate (39) are symmetrically fixed with clamps (52). The two sets of slave swing rods (48) on the other side are cross-rotatably connected to the two sets of slave swing rods (44) at both ends of the sleeve (53) through the swing connecting rod (49) and the swing connecting rod (50).

7. The backlight detection device according to claim 6, characterized in that: A set of adjusting members (51) is provided in the middle of the second swing connecting rod (50), and the adjusting members (51) include two sets of screw rods (511), a set of screw barrels (510) being threadedly connected between the two sets of screw rods (511), and the ends of the screw rods (511) away from the screw barrels (510) are connected to (50) via connecting columns (512).

Images