Backlight plate assembling equipment

Abstract

The technical scheme belongs to the technical field of backlight plate assembling equipment, and particularly relates to backlight plate assembling equipment which is used for assembling plate shells, plate covers and lamp beads of backlight plates and comprises a rack, a plate shell feeding device, a material conveying device, a material conveying device and a material conveying device, the material conveying device is provided with a plurality of material loading seats used for placing plate shells, and the rotary table device drives the material loading seats to be switched among all the set stations; the plate shell mounting device is used for obtaining the plate shell output by the plate shell feeding device and assembling the plate shell onto the loading seat; the lamp bead mounting device is used for mounting lamp beads into the plate shell of the loading seat; the plate cover feeding device is used for conveying plate covers to the material conveying device; the plate cover mounting device is used for mounting the plate cover on the plate shell provided with the lamp beads; the welding flux device is used for performing combined welding on the plate shell and the plate cover; the rack is provided with a brightness detection module used for conducting backlight detection on the welded workpiece finished products, and the discharging device is used for classifying the detected workpiece finished products according to the brightness and sending out the detected workpiece finished products.

Description

Technical Field

[0001] This technical solution relates to the field of backlight assembly equipment technology, and specifically refers to a backlight assembly equipment. Background Technology

[0002] The backlight is the core light-emitting component of a liquid crystal display (LCD). By converting point / line light sources into uniform surface light sources, it ensures consistent screen brightness and color reproduction.

[0003] Currently, the backlight panel structure consists of a shell, a cover mounted on the shell, and LED beads installed in the gap between the two. The traditional assembly process relies entirely on manual labor. To inspect for quality issues such as black spots and scratches on the shell and cover, operators must first place each LED bead into its pre-set slot on the shell for initial positioning. Then, they manually press the cover and shell together and secure them by welding. The brightness of the LED beads is then tested by powering them on. Due to the inherent problems of unstable positioning accuracy and limited assembly speed caused by manual operation, manual installation is time-consuming, resulting in high production costs and low production efficiency. Summary of the Invention

[0004] This technical solution aims to improve the low production efficiency caused by manual assembly of backlight panels by providing a backlight panel assembly device.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A backlight panel assembly equipment is used to assemble the backlight panel shell, cover, and LED beads. It includes a frame and a shell feeding device, which is installed on the frame and used to transport the shell to a conveying device.

[0007] A material conveying device is installed on the frame. The material conveying device is provided with a number of loading seats for placing the plate shells. The material conveying device drives the loading seats to switch between various set work positions.

[0008] A plate and shell mounting device is movably mounted on the frame and is used to acquire the plates and shells output by the plate and shell feeding device and assemble them onto the loading base.

[0009] A lamp bead mounting device is mounted on the frame and is used to mount lamp beads into the plate housing of the loading seat;

[0010] A cover feeding device, which is installed on the frame, is used to feed cover plates to the conveying device;

[0011] A cover mounting device is movably mounted on the frame, and the cover mounting device is used to mount the cover onto the shell containing the LED beads;

[0012] A welding device, mounted on the frame, is used for welding the shell and cover assembly;

[0013] The unloading device is movable on the frame, which is equipped with a brightness detection module for backlight detection of the welded finished workpiece. The unloading device is used to grade the detected finished workpiece according to its brightness and send it out.

[0014] Through the above technical solution, when a backlight panel assembly equipment is in normal use, the shell feeding device outputs shells one by one, the shell mounting device accurately grabs the shells and fixes them to the loading seat, the conveying device drives the loading seat to cyclically dock to each station according to the set rhythm, and the lamp bead mounting device embeds the lamp beads into the preset mounting position at the front end of the shell; subsequently, the cover feeding device provides the cover, and the quality inspection module uses a vision system to detect defects (black spots, scratches) on the surface of the cover. If the inspection is qualified, the cover mounting device accurately presses the cover onto the shell with assembled lamp beads; the soldering device performs ultrasonic welding on the welding parts; the welded workpiece is powered on by the brightness detection module to detect the backlight uniformity and brightness. Based on the 60nit benchmark value, the workpiece is divided into high / low brightness levels, and the unloading device classifies them according to different brightness levels and transports different levels of workpieces to the corresponding areas through the sorting track. This equipment replaces manual operation with automated equipment, reduces the waiting time between processes, and improves the assembly efficiency of backlight panels by combining online quality inspection and intelligent sorting, thereby improving production efficiency.

[0015] Preferably, the plate / shell feeding device includes:

[0016] A feeding vibratory feeder, which is located on the side of the frame, is used to feed the plate shell onto the feeding track;

[0017] The feeding conveyor track is installed between the feeding vibratory plate and the conveying device. One end of the feeding conveyor track is connected to the discharge port of the feeding vibratory plate. Several plates are arranged along the conveying direction on the feeding conveyor track. A material blocking frame for limiting the stacking of plates is installed on the feeding conveyor track.

[0018] A feeding drive unit is used to drive the feeding conveyor track to run, thereby continuously feeding the plate shell.

[0019] The above technical solution involves placing a certain number of plates and shells into the vibratory feeder, which outputs the plates and shells from the discharge port and oriented them onto the feeding conveyor track. The material blocking frame limits the number of layers of plates and shells through the gap design between it and the track, allowing only single-layer plates and shells to pass through to avoid stacking. The feeding drive unit drives the conveyor track to operate continuously through a synchronous belt or chain, so that the plates and shells are conveyed one by one along the track to the feeding station, realizing continuous and stable feeding of plates and shells, eliminating manual placement errors and intermittent stops, and improving production efficiency.

[0020] Preferably, the plate mounting device includes:

[0021] Install a reciprocating mechanism 1, which is mounted on the frame and is used to drive the plate and shell clamping assembly to reciprocate;

[0022] A plate and shell clamping assembly includes a mounting drive component 1 disposed on a mounting reciprocating mechanism 1 and a plate and shell clamp. The plate and shell clamp is disposed at the output end below the mounting drive component 1 and is slidably connected relative to the mounting reciprocating mechanism 1. The sliding direction of the plate and shell clamp is perpendicular to that of the mounting reciprocating mechanism 1. The mounting drive component 1 drives the plate and shell clamp to move up and down, so as to drive the plate and shell to be positioned on the loading seat.

[0023] Through the above technical solution, the reciprocating mechanism drives the plate clamping assembly to reciprocate laterally between the output end of the feeding conveyor track and the loading seat. The plate clamping assembly is equipped with a driving component that vertically drives the plate clamp to complete the lifting action, thereby realizing the clamping or assembly work of the plate clamp. This structure ensures assembly accuracy through the coordinated cooperation of bidirectional independent motion, and reduces equipment complexity through modular motion units, effectively improving the efficiency and stability of plate installation.

[0024] Preferably, the lamp bead mounting device includes:

[0025] A mounting base is installed on the frame. The mounting base is provided with a material storage bin for placing LED beads. A material rack extends from the mounting base toward the material storage bin. The material rack is provided with a material slot for preparing LED beads. The material slot passes through the side wall of the material rack for the lead of the LED beads to pass through. An LED bead identifier for identifying the position of individual LED beads is mounted on the mounting base.

[0026] A reciprocating drive mechanism, which is slidably disposed on the mounting base, is used to drive the lamp bead clamping assembly to reciprocate along the horizontal vertical direction;

[0027] The LED bead clamping assembly includes a second mounting drive component and an LED bead clamp disposed on a reciprocating drive mechanism. The LED bead clamp is disposed at the output end of the lower part of the second mounting drive component and is slidably connected relative to the mounting base. The second mounting drive component drives the LED bead clamp to move up and down to transfer the LED beads in the material storage bin to the material storage trough, and then drive the LED beads to cooperate with the plate shell.

[0028] Through the above technical solution, a certain number of LED beads are placed in the preparation hopper. The intermittent vibration of the preparation hopper causes the LED beads to continuously change position and angle. The appropriate LED beads are identified by the image of the LED bead identifier. The reciprocating drive mechanism performs orthogonal horizontal linkage (along the X / Y axis) to position the LED bead clamping component above the target LED bead. The second drive component drives the LED bead clamp to descend vertically and clamp the LED bead. The dual drive mechanisms work together to move the clamp to the preparation tank to complete the pre-positioning, so as to determine whether the clamped LED bead is in the correct posture, improve the installation accuracy and improve the yield rate. Finally, the LED bead is pressed into the designated installation position in the shell, improving the installation efficiency.

[0029] Preferably, the plate cover feeding device includes:

[0030] A feeding and storage unit is rotatably mounted on the frame. The feeding and storage unit has several feeding slots around its circumference for stacking plate covers. The frame is provided with a pushing assembly, which includes a pushing drive and a pushing component. The pushing component is slidably connected to the frame. The pushing drive drives the pushing component to move towards the feeding slots, thereby pushing the plate covers upward.

[0031] The feeding reciprocating mechanism is movably mounted on the frame and is used to drive the plate cover clamping assembly to reciprocate.

[0032] The cover clamping assembly includes a mounting drive component three disposed on the feeding reciprocating mechanism and a cover clamp. The cover clamp is disposed at the output end of the lower part of the mounting drive component three. The cover clamp is slidably connected relative to the frame. The moving direction of the cover clamp is perpendicular to the reciprocating moving direction of the feeding reciprocating mechanism. The mounting drive component three drives the cover clamp to move up and down, so as to move the cover to the quality inspection module.

[0033] Through the above technical solution, the feeding storage component rotates circumferentially to facilitate the cyclic feeding of each feeding trough. When the feeding trough is in the feeding position, the pushing drive component drives the pushing component to push the cover plate upwards, filling the upper cover plate to the top position, improving the efficiency of cover plate acquisition. The second reciprocating mechanism drives the cover plate clamping assembly to move horizontally back and forth between the feeding storage component and the quality inspection module. The third drive component drives the cover plate clamp to clamp or release the cover plate, realizing a fully automatic cover plate grabbing-transfer-placement process, improving the feeding rate and positioning accuracy, and reducing the need for manual intervention.

[0034] Preferably, the frame is provided with a quality inspection module, which includes a flipping fixture and a detection device. The flipping fixture holds the cover and flips it over, and the detection device detects the cover through a detection end.

[0035] The cover mounting device includes a second mounting reciprocating mechanism that slides on the frame and a cover mounting fixture. The second mounting reciprocating mechanism is used to drive the cover mounting fixture to move. The cover mounting fixture can pick up the cover and install it on the cover shell.

[0036] Through the above technical solution, the quality inspection module uses a flipping fixture to hold the cover and perform a 180° flipping action, allowing the detection device to perform multi-angle scanning inspection of the front and back of the cover. After the inspection is completed, the qualified cover is positioned at the material picking station. The installation reciprocating mechanism drives the cover installation fixture to slide horizontally to the material picking station, picks up the qualified cover, and moves it to the loading seat, so that it is precisely aligned and fastened with the shell. While performing quality judgment and assembly functions, it further reduces the manual flipping inspection process, realizes the integrated operation of cover inspection and installation, further improves the yield rate and production line continuity, and thus further improves production efficiency.

[0037] Preferably, the frame is provided with a material fixing device, which includes a material fixing drive and a material fixing plate that is slidably disposed relative to the frame. The material fixing plate is supported at the output end of the feeding conveyor track. The material fixing drive is used to drive the material fixing plate to move so as to restrict the output of the plate shell.

[0038] The frame is equipped with a second material fixing device, which includes a second material fixing seat, a second material fixing drive unit disposed at the front end of the second material fixing seat, and a second material fixing plate. The second material fixing plate is slidably disposed relative to the second material fixing seat. The second material fixing drive unit is used to drive the second material fixing plate to move so that its lower pressing plate shell and plate cover are combined and positioned. The brightness detection module moves and connects to the pin through the power terminal. After being powered on, the lamp bead is lit.

[0039] Through the above technical solution, the first material-fixing drive component drives the first material-fixing plate to slide. The first material-fixing plate blocks the end of the feeding conveyor track to accurately stop the plate shell and realize the release of a single piece. After the assembled plate shell and plate cover are transported to the bottom of the second material-fixing seat, the second material-fixing drive component drives the second material-fixing plate to press down vertically, clamp the component, and reduce the swing during the connection of the pins and the power connection of the detection module. The brightness detection module connects to the power to light up the lamp beads, and at the same time, the light effect detection is used to check whether the component is qualified. The mechanical clamping ensures the stability of the detection power connection. While improving the reliability of detection, it forms a positioning-detection operation cycle and further improves the yield rate.

[0040] Preferably, the soldering device includes a welding frame disposed on the frame, a welding drive component, and a welding head movably connected to the welding frame, wherein the welding drive component drives the welding head to move up and down;

[0041] The frame is also provided with a material fixing device three, which includes a material fixing seat three, a material fixing drive component three disposed at the front end of the material fixing seat three, and a material fixing block three. The material fixing block three is slidably disposed relative to the material fixing seat three. The material fixing drive component three is used to drive the material fixing block three to move so that its lower pressing plate shell and plate cover are combined and positioned.

[0042] Through the above technical solution, when the board shell and board cover are transported to the fixed material holder three, the fixed material drive three drives the fixed material pressure block three to press down vertically, rigidly fixing the components and ensuring that the lamp bead pins are in the horizontal welding position. Then, the welding drive drives the welding head to descend vertically and perform ultrasonic welding on the part where the board cover and board shell are joined with the lamp bead. Through the coordinated operation of the fixed material device three and the welding head, precise welding is achieved, forming a stable welding environment, reducing the risk of component displacement, improving welding accuracy and consistency, and thus improving the yield.

[0043] Preferably, the feeding device includes:

[0044] The workpiece unloading assembly, which is installed on the frame, is used to classify and place the inspected finished workpieces onto the unloading conveyor assembly;

[0045] A material feeding and conveying assembly is mounted on the frame, the material feeding and conveying assembly including a material feeding and conveying frame and at least two material feeding and conveying components;

[0046] The feeding reciprocating mechanism is mounted above the output end of the feeding conveying assembly and is used to drive the feeding clamping assembly to reciprocate.

[0047] A material unloading clamping assembly is disposed on the material unloading reciprocating mechanism. The material unloading clamping assembly includes a material unloading drive and a material unloading clamp disposed below the material unloading drive. The material unloading drive is used to drive the material unloading clamp to move up and down, so as to obtain the finished workpiece from the material unloading conveyor and unload it.

[0048] Through the above technical solution, the dual conveyor components of the discharge conveying assembly output finished workpieces in parallel. The first conveyor component is used to convey workpieces with a brightness value of 20-60 nits, and the second conveyor component is used to convey workpieces with a brightness value of 60 nits and above. After the discharge reciprocating mechanism drives the clamping component to move horizontally above the target conveyor component, the discharge drive component drives the unloading fixture to descend and grab different types of workpieces to the corresponding designated positions, realizing automatic sorting and diversion of finished products to obtain two batches of finished workpieces, improving sorting efficiency and thus improving production efficiency.

[0049] Preferably, the material conveying device includes:

[0050] The material conveying platform is rotatably mounted on the frame. Several loading seats are installed and distributed on the material conveying platform around the rotation axis. The loading seats are provided with loading grooves. The side wall of the loading groove is provided with a relief groove one for the pin to pass through. The loading groove is also provided with a relief groove two along the opposite side wall for the corresponding clamp end to make way.

[0051] A material conveying drive unit, which is mounted on the frame, is used to drive the material conveying platform to rotate around an axis.

[0052] Through the above technical solution, the material conveying drive unit drives the material conveying table to rotate intermittently around the axis, realizing efficient multi-station flow. The circularly distributed loading seats stop sequentially at the plate shell loading station, lamp bead loading station, plate cover loading station, welding station, inspection station and assembly unloading station, ensuring the connection accuracy of synchronous operation of each station, while reducing equipment space occupation and interference risk.

[0053] The loading slot achieves precise positioning by avoiding interference from the pins of the plate shell through the first clearance groove on the side wall, while the second clearance groove provides clearance space for the clamping fixture to ensure gripping stability.

[0054] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0055] 1. This technical solution achieves precision assembly of backlight panels through an assembly line. After the panel shell is positioned and loaded, it flows with the rotating station. The LED beads are precisely embedded, and the panel cover is pressed together without marks after visual inspection. Ultrasonic welding and brightness detection are performed simultaneously. The unloading device grades the finished products and outputs them through a dual-track sorting system. The entire process replaces manual intervention with mechanical collaboration. Through dynamic avoidance structure and closed-loop quality inspection, zero-stress interlayer bonding is achieved, which improves the assembly efficiency of the backlight panel and thus improves production efficiency. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0057] Figure 2 This is a schematic diagram of the overall structure of the plate and shell feeding device in the embodiment;

[0058] Figure 3 This is a schematic diagram of the overall structure of the material conveying device in the embodiment;

[0059] Figure 4 This is a schematic diagram of the overall structure of the loading base in the embodiment;

[0060] Figure 5 This is a schematic diagram of the overall structure of the plate and shell mounting device in the embodiment;

[0061] Figure 6 This is a schematic diagram of the overall structure of the LED bead mounting device in the embodiment;

[0062] Figure 7 As in the embodiments Figure 6 Enlarged view of a portion;

[0063] Figure 8 This is a schematic diagram of the overall structure of the plate cover feeding device in the embodiment;

[0064] Figure 9 This is a schematic diagram of the overall structure of the feeding device in the embodiment;

[0065] Figure 10 This is a partial exploded view of the backlight panel in the embodiment.

[0066] Reference numerals: 1. Frame; 2. Plate / shell feeding device; 21. Feeding vibratory feeder; 22. Feeding conveyor track; 23. Feeding drive component; 3. Conveying device; 31. Conveying platform; 32. Conveying drive component; 4. Plate / shell mounting device; 41. Mounting reciprocating mechanism one; 42. Plate / shell clamping assembly; 421. Mounting drive component one; 422. Plate / shell clamp; 5. LED bead mounting device; 51. Mounting base; 52. Reciprocating drive. Mechanism; 53. Lamp bead clamping assembly; 531. Mounting drive component two; 532. Lamp bead clamp; 6. Plate cover feeding device; 61. Feeding storage component; 62. Feeding reciprocating mechanism; 63. Plate cover clamping assembly; 631. Mounting drive component three; 632. Plate cover clamp; 8. Soldering device; 81. Welding frame; 82. Welding drive component; 83. Welding head; 9. Unloading device; 91. Unloading conveyor assembly; 911. Unloading conveyor... 912. Feeding rack; 92. Unloading conveyor; 93. Unloading reciprocating mechanism; 94. Unloading clamping assembly; 95. Unloading drive component; 96. Unloading fixture; 97. Loading base; 18. Quality inspection module; 19. Tilting fixture; 10. Illumination device; 11. Brightness detection module; 12. Material blocking rack; 13. Material preparation bin; 14. Material preparation rack; 15. Material preparation trough; 16. Material preparation trough; 17. Material loading trough; 18. Pushing assembly; 199. 192. Pushing drive component; 20. Material fixing device one; 24. Material fixing device two; 241. Material fixing seat two; 242. Material fixing drive component two; 243. Material fixing plate two; 25. Material fixing device three; 251. Material fixing seat three; 252. Material fixing drive component three; 253. Material fixing block three; 26. Loading groove; 27. Relief groove one; 28. Relief groove two; 100. Plate shell; 200. Lamp bead; 300. Plate cover. Detailed Implementation

[0067] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0068] Example:

[0069] See Figure 1A backlight panel assembly equipment is used to assemble the backlight panel shell, cover, and LED beads. It includes a frame 1, a shell feeding device 2 installed on the side of the frame 1, and a material conveying device 3, a shell mounting device 4, an LED bead mounting device 5, a cover feeding device 6, a cover mounting device, a soldering device 8, and a unloading device 9 installed on the frame 1. The various devices are arranged around each other in the order of the assembly process to form a production line layout capable of assembling the shell 100, LED beads 200, and cover 300.

[0070] See Figure 2 The plate and shell feeding device 2 includes a feeding vibratory plate 21, a feeding conveying track 22, and a feeding drive 23. The feeding vibratory plate 21 is mounted on an independent frame on the side of the frame 1. It is a disc-shaped structure that can accommodate plates and shells and is equipped with a spirally ascending guide track. One end of the feeding conveying track 22 is mounted at the outlet of the feeding vibratory plate 21, and the other end extends toward the plate and shell mounting device 4. Plates and shells output from the feeding vibratory plate 21 are arranged along the transmission direction. The material blocking frame 14 covers the feeding conveying track 22. The gap between the frame and the feeding conveying track 22 is only large enough to allow a single layer of plates and shells to pass through, so as to avoid stacking. The feeding drive 23 is located below the feeding conveying track 22. It drives the feeding conveying track 22 to run, so that the track continuously conveys plates and shells to the end station, achieving stable material supply.

[0071] The frame 1 is equipped with a material fixing device 20, which includes a material fixing drive and a material fixing plate. The material fixing plate is located at the output end of the feeding conveyor track 22. The material fixing plate is slidably arranged relative to the frame 1, and its sliding direction is vertical. The material fixing drive drives the material fixing plate to move upward, thereby restricting the output of the plate on the feeding conveyor track 22. When it is necessary to pick up the material, the material fixing drive drives the material fixing plate to retract downward, thereby restricting the release of a single plate.

[0072] See Figure 3 The material conveying device 3 includes a material conveying platform 31 and a material conveying drive 32. The material conveying platform 31 is rotatably mounted on the frame 1 and rotates circumferentially around its own axis. The material conveying drive 32 is installed between the material conveying platform 31 and the frame 1. The material conveying platform 31 is provided with a number of loading seats 11 for placing the plate shell. There are eight loading seats 11, and all eight loading seats 11 are fixed to the edge of the turntable at intervals by bolts. The material conveying drive 32 drives the material conveying platform 31 to rotate intermittently through a reducer, so that each loading seat 11 stops at each work station in sequence.

[0073] See Figure 4Each loading base 11 is provided with a loading groove 26, which is opened on the upper end face of the loading base 11. Its shape and size are adapted to the plate shell. Each loading base 11 is provided with a relief groove 27, which is opened on the front side of the upper end face of the loading base 11. One side of the groove is connected to the front inner wall of the loading groove 26, and the other side is connected to the front wall of the loading base 11, for the placement of the LED pins. Each loading base 11 is also provided with a second relief groove 28. There are two second relief grooves 28, which are connected one-to-one to the opposite inner walls of the loading groove 26, for the purpose of avoiding the clamp.

[0074] See Figure 5 The plate mounting device 4 includes a mounting reciprocating mechanism 41 and a plate clamping assembly 42. The mounting reciprocating mechanism 41 is mounted on the frame 1. In this embodiment, the mounting reciprocating mechanism 41 typically includes a track module, a drive component, and a moving component. The moving component can be clamped onto the track module and move along the track. The drive component drives the moving component to reciprocate between the two ends of the track module, thereby causing the plate clamping assembly 42 to move synchronously. The plate clamping assembly 42 includes a mounting drive component 41. 21 and plate clamp 422, the mounting drive component 421 is set at the front end of the mounting reciprocating mechanism 41, the plate clamp 422 can be a pneumatic gripper, which is fixed on the output end of the lower part of the mounting drive component 421 and is slidably set relative to the mounting reciprocating mechanism 41. The mounting drive component 421 drives the plate clamp 422 to move up and down, so as to realize the action of the plate clamp 422 to grip a plate at the output end of the feeding conveyor track 22 and place the plate in the loading slot 26 of the loading seat 11.

[0075] See Figure 6 and Figure 7 The LED bead installation device 5 includes an installation base 51, a reciprocating drive mechanism 52, and an LED bead clamping assembly 53. The installation base 51 is fixed on the frame 1. The installation base 51 is provided with a material storage bin 15, which is located on the front side of the upper end of the installation base 51. The LED beads to be installed are placed in batches inside the bin. The installation base 51 is integrated with a vibration mechanism (such as an electromagnetic vibrator), which drives the LED beads to generate disordered movement in the bin through high-frequency micro-amplitude vibration. The LED beads continuously adjust their posture and are evenly dispersed due to the force, so as to facilitate the subsequent acquisition of LED beads. The installation base 51 is provided with a material rack 16, which extends toward the material storage bin 15. The material rack 16 has a material storage groove 17, which is opened on the upper end face of the extended end of the material rack 16. Its shape is adapted to the LED beads, and the pin position of the LED beads passes through the side wall of the material rack 16.

[0076] The mounting base 51 is equipped with an LED bead identifier for identifying the position of individual LED beads. The LED bead identifier is existing technology and will not be described in detail here. Visual positioning is performed by the detection end of the LED bead identifier, which can quickly filter out individual LED beads and determine the LED beads that meet the preset posture, and then transmit the information to the controller.

[0077] The reciprocating drive mechanism 531 is mounted on the mounting base 51 and can drive the lamp bead clamping assembly 532 to move along the horizontally perpendicular X-axis and Y-axis. The lamp bead clamping assembly 532 includes a second mounting drive component 531 and a lamp bead clamp 532. The lamp bead clamp 532 is located at the lower output end of the second mounting drive component 531 and is slidably arranged relative to the mounting base 51. The lamp bead clamp 532 is preferably a pneumatic gripper. The second mounting drive component 531 drives the lamp bead clamp 532 to move up and down so that the lamp bead clamp 532 can clamp the lamp beads, transfer them to the material preparation tank 17 for pre-correction of posture, and finally press them into the preset position of the shell.

[0078] See Figure 8 The plate cover feeding device 6 includes a feeding storage component 61, a feeding reciprocating mechanism 62, and a plate cover clamping assembly 63. The feeding storage component 61 is rotatably connected to the frame 1. The feeding storage component 61 has multiple sets of feeding slots 18 circumferentially formed. Each feeding slot 18 starts in the vertical direction and its cross-sectional shape is adapted to the shape of the plate cover for stacking. The frame 1 is provided with a pushing assembly 19, which is installed below the front side of the feeding storage component 61 and is positioned to be aligned with the feeding slots 18. The material pushing assembly 19 is configured to be aligned through the material. It includes a material pushing drive 191 and a material pushing component 192. The material pushing component 192 is slidably arranged relative to the material storage component 61. The material pushing drive 191 is preferably a motor, which drives the material pushing component 192 to move up and down. The storage component rotates so that the full material trough is aligned with the material pushing station. The upper end of the material pushing component 192 enters the material feeding trough 18 and pushes all the stacked plate covers in the material feeding trough 18 to move upward until the topmost plate cover can be picked up.

[0079] The feeding reciprocating mechanism 62 is mounted on the frame 1 and can drive the cover clamping assembly 63 to reciprocate between the feeding trough 18 and the quality inspection module 12. The cover clamping assembly 63 includes a mounting drive component 631 and a cover clamp 632. The cover clamp 632 is located at the output end of the mounting drive component 631 and is slidably arranged relative to the frame 1. The cover clamp 632 is preferably a vacuum suction cup structure. The cover clamp 632 grabs the cover and transfers it to the quality inspection module 12.

[0080] The quality inspection module 12 includes a flipping fixture 121 and a detection device 122. The clamping end of the flipping fixture 121 and the detection end of the detection device 122 face each other. The cover fixture 632 moves the cover to the clamping end of the flipping fixture 121. The flipping fixture 121 clamps and holds the cover and flips it 180°. The detection device 122 scans for defects on both sides. The structure of the cover mounting device is similar to that of the shell mounting device 4. It includes a second mounting reciprocating mechanism that slides on the frame 1 and a cover mounting fixture. The second mounting reciprocating mechanism drives the cover mounting fixture to move back and forth horizontally between the cover loading station and the loading seat 11. Qualified covers are gripped and pressed into the shell in the loading seat 11 by the cover mounting device. If the cover is not qualified, it is sent out.

[0081] See Figure 3 The frame 1 is equipped with a second material fixing device 24, which includes a second material fixing seat 241, a second material fixing drive component 242, and a second material fixing plate 243. The frame 1 is equipped with an arched frame body, which is mounted on the material conveying platform 31. The second material fixing seat 241 is fixed on the frame body of the frame 1. The second material fixing drive component 242 is fixed on the section of the second material fixing seat 241 away from the frame body. The second material fixing plate 243 is connected to the output end of the lower part of the second material fixing drive component 242. The second material fixing plate 243 is slidably arranged relative to the frame 1. The second material fixing drive component 242 drives the second material fixing plate 243 to move downward, so that the lower pressure plate shell and the plate cover are combined and positioned. The structure and operation mode of the first material fixing device are similar to those of the second material fixing device 24.

[0082] The soldering device 8 includes a welding frame 81, a welding drive 82, and a welding head 83 movably connected to the welding frame 81. The welding frame 81 is fixed to the side of the frame 1 near the material conveying table 31. The welding drive 82 is installed on the side of the welding frame 81 near the material conveying table 31. The welding head 83 is connected to the drive end of the lower part of the welding drive 82. The welding head 83 is slidably arranged relative to the welding frame 81, and its sliding direction is parallel to the moving direction of the fixed material pressing plate 243. The welding drive 82 drives the welding head 83 to move, so that the welding head 83 descends to perform ultrasonic welding on the end of the plate cover and the plate shell where the LED beads are provided.

[0083] The frame 1 is equipped with a material fixing device 325, which includes a material fixing seat 3251, a material fixing drive component 3252 disposed at the front end of the material fixing seat 3251, and a material fixing block 3253. The material fixing seat 3251 is fixed on the frame of the frame 1 and its position corresponds to the welding device 8. The material fixing drive component 3252 is located at the end of the material fixing seat 3251 away from the frame. The material fixing block 3253 is slidably disposed relative to the material fixing seat 3251, and its sliding direction is parallel to the sliding direction of the welding head 83. The material fixing drive component 3252 is used to drive the material fixing block 3253 to move, so that its lower pressure plate shell and plate cover assembly is positioned at the other end away from the lamp bead installation position.

[0084] The frame 1 is equipped with a brightness detection module 13, which is used to perform backlight detection on the finished welded workpiece to obtain the brightness value information of the finished product. In this embodiment, the brightness detection module 13 includes a pair of elastic conductive probes (positive / negative poles). The probe spacing matches the standard spacing of the LED pins. The brightness detection module 13 is slidably connected to the frame 1. When the workpiece enters the test station, the brightness detection module 13 moves upward so that its two contacts correspond one-to-one with the two pins of the LED, and are connected to the positive and negative power supplies respectively. The LED lights up when powered on. The brightness is compared with a preset threshold α to classify the workpiece into high / low brightness levels. In this embodiment, the low brightness level α is 20nit-60nit, and the high brightness level α is greater than 60nit. The signal is transmitted to the unloading device 9 for sorting. When α is less than 20nit, the workpiece is unqualified.

[0085] The unloading device 9 includes a workpiece unloading assembly 94, an unloading conveying assembly 91, an unloading reciprocating mechanism 92, and an unloading clamping assembly 93. The unloading conveying assembly 91 includes an unloading conveying frame 911 and at least two unloading conveyors 912. The two unloading conveyors 912 are installed above the unloading conveying frame 911. The unloading conveyors 912 can adopt a conveyor belt structure. One unloading conveyor 912 is used to convey workpieces with low brightness levels, and the other unloading conveyor 912 is used to convey workpieces with high brightness levels. The workpiece unloading assembly 94 moves the workpiece above the corresponding unloading conveyor 912 according to the brightness level and releases the workpiece into the designated unloading conveyor 912 for conveying. The conveying direction is set in the horizontal direction.

[0086] The unloading reciprocating mechanism 92 is mounted above the output end of the unloading conveying component 91 and is used to drive the unloading clamping component 93 to reciprocate along the X and Y axes of the horizontal plane. The unloading clamping component 93 includes an unloading drive component 931 and an unloading clamp 932 disposed below the unloading drive component 931. The unloading clamp 932 is preferably a pneumatic gripper. The unloading drive component 931 drives the unloading clamp 932 to move up and down to obtain finished workpieces from the unloading conveyor 912 and transport high / low brightness workpieces to different collection areas to complete the sorting process.

[0087] The specific work process of this plan is as follows:

[0088] This technical solution involves the shell feeding device 2 outputting shells one by one, the shell mounting device 4 precisely grabbing the shells and fixing them to the loading seat 11, the conveying device 3 driving the loading seat 11 to cyclically dock to each workstation according to a set rhythm, and the lamp bead mounting device 5 embedding the lamp beads into the preset mounting positions at the front end of the shell. Subsequently, the cover feeding device 6 provides the cover, and the quality inspection module 12 uses a vision system to detect defects (black spots, scratches) on the surface of the cover. If the inspection is qualified, the cover mounting device 7 precisely presses the cover onto the shell with assembled lamp beads. The soldering device 8 performs ultrasonic welding on the welding parts. The welded workpiece is then powered on by the brightness detection module 13 to detect the backlight uniformity and brightness. Based on the 60nit benchmark value, the workpiece is divided into high / low brightness levels. The unloading device 9 classifies the workpieces according to different brightness levels and transports the different levels of workpieces to the corresponding areas through the sorting track. This equipment replaces manual operation with automated equipment, reduces the waiting time between processes, and improves the assembly efficiency of the backlight board by combining online quality inspection and intelligent sorting, thereby improving production efficiency.

[0089] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A backlight panel assembly device for assembling the backlight panel shell, cover, and LED chips, comprising a frame (1), characterized in that, Also includes: A plate and shell feeding device (2) is installed on the frame (1) and is used to feed the plate and shell to the conveying device; Material conveying device (3) is installed on the frame (1). The material conveying device (3) is provided with a plurality of loading seats (11) for placing the plate shell. The material conveying device (3) drives the loading seats (11) to switch between various set work stations. The plate and shell mounting device (4) is movably mounted on the frame (1) and is used to obtain the plate and shell output by the plate and shell feeding device (2) and assemble it onto the loading seat (11). The lamp bead mounting device (5) is mounted on the frame (1) and is used to install the lamp beads into the plate shell of the loading seat (11); A cover feeding device (6) is installed on the frame (1) and is used to feed the cover to the conveying device (3); A cover mounting device is movably mounted on the frame (1) for mounting the cover onto the shell containing the LED beads; A welding device (8) is mounted on the frame (1) for welding the shell and cover assembly; The unloading device (9) is movably mounted on the frame (1). The frame (1) is equipped with a brightness detection module (13) for backlight detection of the welded finished workpiece. The unloading device (9) is used to grade the detected finished workpiece according to brightness and send it out.

2. The backlight assembly equipment according to claim 1, characterized in that: The plate and shell feeding device (2) includes: A feeding vibratory plate (21) is placed on the side of the frame (1) and is used to output the plate shell to the feeding conveyor track; The feeding conveying track (22) is installed between the feeding vibrating plate (21) and the conveying device (3). One end of the feeding conveying track (22) is connected to the discharge port of the feeding vibrating plate (21). The feeding conveying track (22) has a number of plates arranged along the conveying direction. The feeding conveying track (22) is equipped with a material blocking frame (14) for limiting the stacking of plates. The feeding drive unit (23) is used to drive the feeding conveyor track (22) to run, so as to continuously feed the plate shell.

3. The backlight assembly equipment according to claim 2, characterized in that: The plate mounting device (4) includes: Install a reciprocating mechanism (41), which is mounted on the frame (1) and is used to drive the plate and shell clamping assembly to reciprocate; The plate and shell clamping assembly (42) includes a mounting drive member (421) disposed on the mounting reciprocating mechanism (41) and a plate and shell clamp (422). The plate and shell clamp (422) is disposed at the output end of the lower part of the mounting drive member (421) and is slidably connected to the mounting reciprocating mechanism (41). The sliding direction of the plate and shell clamp (422) is perpendicular to that of the mounting reciprocating mechanism (41). The mounting drive member (421) drives the plate and shell clamp (422) to move up and down, so as to drive the plate and shell to be disposed on the loading seat (11).

4. The backlight assembly equipment according to claim 1, characterized in that: The lamp bead mounting device (5) includes: A mounting base (51) is mounted on the frame (1). The mounting base (51) is provided with a material storage bin (15) for placing LED beads. A material rack (16) extends from the mounting base (51) toward the material storage bin (15). A material trough (17) is provided on the material rack (16). The material trough (17) prepares LED beads. The material trough (17) penetrates the side wall of the material rack (16) for the LED bead pins to pass through. An LED bead identifier for identifying the individual position of LED beads is mounted on the mounting base (51). A reciprocating drive mechanism (52) is slidably disposed on the mounting base (51) for driving the lamp bead clamping assembly to reciprocate along the horizontal vertical direction; The lamp bead clamping assembly (53) includes a second mounting drive component (531) disposed on the reciprocating drive mechanism (52) and a lamp bead clamp (532). The lamp bead clamp (532) is disposed at the output end of the lower part of the second mounting drive component (531) and is slidably connected relative to the mounting base (51). The second mounting drive component (531) drives the lamp bead clamp (532) to move up and down to transfer the lamp beads in the material storage bin (15) to the material storage trough (17) and then drive the lamp beads to cooperate with the plate shell.

5. The backlight assembly equipment according to claim 1, characterized in that: The plate cover feeding device (6) includes: A feeding storage unit (61) is rotatably mounted on the frame (1). The feeding storage unit (61) has several feeding slots (18) around its circumference for stacking plate covers. The frame (1) is provided with a pushing assembly (19). The pushing assembly (19) includes a pushing drive unit (191) and a pushing component (192). The pushing component (192) is slidably connected relative to the frame (1). The pushing drive unit (191) drives the pushing component (192) to move toward the feeding slots (18) so as to push the plate covers upward. The feeding reciprocating mechanism (62) is movably mounted on the frame (1) and is used to drive the plate cover clamping assembly to reciprocate. The cover clamping assembly (63) includes a mounting drive component three (631) disposed on the feeding reciprocating mechanism (62) and a cover clamp (632). The cover clamp (632) is disposed at the output end of the lower part of the mounting drive component three (631). The cover clamp (632) is slidably connected to the frame (1). The moving direction of the cover clamp (632) is perpendicular to the reciprocating direction of the feeding reciprocating mechanism (62). The mounting drive component three (631) drives the cover clamp (632) to move up and down, so as to move the cover to the quality inspection module (12).

6. The backlight assembly equipment according to claim 1, characterized in that: The frame (1) is provided with a quality inspection module (12), which includes a flipping clamp (121) and a detection device (122). The flipping clamp (121) holds the cover and flips it over, and the detection device (122) detects the cover through the detection end. The cover mounting device includes a second mounting reciprocating mechanism that slides on the frame (1) and a cover mounting fixture. The second mounting reciprocating mechanism is used to drive the cover mounting fixture to move. The cover mounting fixture can acquire the cover and install it on the cover.

7. The backlight assembly equipment according to claim 2, characterized in that: The frame (1) is provided with a material fixing device (20), which includes a material fixing drive and a material fixing plate that is slidably disposed relative to the frame (1). The material fixing plate is connected to the output end of the feeding conveyor track (22). The material fixing drive is used to drive the material fixing plate to move so as to restrict the output of the plate shell. The frame (1) is provided with a material fixing device (24), which includes a material fixing seat (241), a material fixing drive component (242) disposed at the front end of the material fixing seat (241), and a material fixing plate (243). The material fixing plate (243) is slidably disposed relative to the material fixing seat (241). The material fixing drive component (242) is used to drive the material fixing plate (243) to move so that its lower pressing plate shell and plate cover are combined and positioned. The brightness detection module (13) moves and connects to the pin through the power terminal. After being powered on, the lamp bead is lit.

8. The backlight assembly equipment according to claim 1, characterized in that: The soldering device (8) includes a welding frame (81) disposed on the frame (1), a welding drive (82) and a welding head (83) movably connected to the welding frame (81). The welding drive (82) is used to drive the welding head (83) to move up and down. The frame (1) is also provided with a material fixing device three (25). The material fixing device three (25) includes a material fixing seat three (251), a material fixing drive three (252) disposed at the front end of the material fixing seat three (251), and a material fixing block three (253). The material fixing block three (253) is slidably disposed relative to the material fixing seat three (251). The material fixing drive three (252) is used to drive the material fixing block three (253) to move so that its lower pressing plate shell and plate cover are combined and positioned.

9. A backlight panel assembly device according to claim 1, characterized in that: The feeding device (9) includes: The workpiece unloading assembly (94) is installed on the frame (1) and is used to classify and place the inspected finished workpieces onto the unloading conveyor assembly; A feeding conveying assembly (91) is mounted on the frame (1), the feeding conveying assembly (91) includes a feeding conveying frame (911) and at least two feeding conveyors (912); The feeding reciprocating mechanism (92) is mounted above the output end of the feeding conveying assembly (91) and is used to drive the feeding clamping assembly to reciprocate. The unloading clamping assembly (93) is disposed on the unloading reciprocating mechanism (92). The unloading clamping assembly (93) includes an unloading drive (931) and an unloading clamp (932) disposed at the lower part of the unloading drive (931). The unloading drive (931) is used to drive the unloading clamp (932) to move up and down, and to obtain the finished workpiece from the unloading conveyor and unload it.

10. A backlight panel assembly device according to claim 1, characterized in that: The material conveying device (3) includes: A conveying platform (31) is rotatably mounted on the frame (1). Several loading seats (11) are installed and distributed on the conveying platform (31) around the rotation axis. A loading groove (26) is provided on the loading seat (11). The side wall of the loading groove (26) is provided with a relief groove (27) for the pin to pass through. The loading groove (26) is also provided with a relief groove (28) along the opposite side wall for the corresponding clamp end to make room. Material handling drive (32), which is mounted on the frame (1), is used to drive the material handling table (31) to rotate about the axis.

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