High-precision visual positioning and automatic wire insertion lighting equipment for backlight plate

Abstract

The utility model discloses a kind of backlight high-precision visual positioning automatic wiring lighting equipment, comprising: base, positioning detection mechanism, docking mechanism, multiple bearing mechanism, good product conveyor and waste product conveyor, the top of base is rotatably connected with rotating shaft, and the top of base is equipped with the driving mechanism for driving rotating shaft angle rotation, positioning detection mechanism includes positioning industrial camera and detection industrial camera, for realizing backlight positioning and defect detection after lighting, docking mechanism includes mechanical arm, mechanical arm is installed on the top of base, and the end of mechanical arm is equipped with connector for being docked with backlight FPC gold finger connector. The utility model synchronously parallel operation by loading, positioning docking, detection, discharging step, without single process waiting, significantly shorten the processing period of single backlight, in addition integrated vision detection and automatic sorting function, good product and waste product can be separated in real time, reduce manual operation intensity.

Description

Technical Field

[0001] This utility model relates to the field of backlight panel detection technology, and in particular to a high-precision visual positioning automatic wiring and lighting device for backlight panels. Background Technology

[0002] A backlight is a device that provides a uniform light source for a liquid crystal display (LCD). Its core function is to convert point / line light sources into surface light sources, and it is mainly used in scanning equipment, consumer electronics, medical instruments, and automotive instruments. This device typically consists of components such as a light source (e.g., LED, CCFL), a light guide plate, and optical films. During the manufacturing process of a backlight, after assembly, a power-on lighting test must be performed to detect any quality defects such as bright spots, dark spots, or uneven brightness.

[0003] Existing equipment mostly adopts a single-station serial operation mode. The processes of feeding, positioning and docking, lighting detection and unloading must be completed in sequence. The next process can only be started after the previous process is completed. The processing cycle of a single backlight panel is long and the equipment has low output per unit time, which is difficult to meet the efficiency requirements of large-scale mass production. In addition, after the detection is completed, sorting is done manually, which is labor-intensive and requires a lot of manpower. Moreover, the efficiency of manual operation is difficult to improve.

[0004] Therefore, a high-precision visual positioning automatic wiring and lighting device for backlight panels is proposed to address the above problems. Utility Model Content

[0005] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a high-precision visual positioning automatic wiring and lighting device for backlight panels. By synchronizing and parallelizing the steps of feeding, positioning and docking, detection and unloading, the device eliminates the need for waiting for individual processes, significantly shortening the processing cycle of a single backlight panel. In addition, it integrates visual detection and automatic sorting functions, which can separate good products from defective products in real time, reducing the intensity of manual operation.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a high-precision visual positioning automatic wiring and lighting device for backlight panels, comprising: a base, a positioning and detection mechanism, a docking mechanism, multiple carrying mechanisms, a good product conveyor belt, and a waste product conveyor belt. A rotating shaft is rotatably connected to the top of the base, and a driving mechanism for driving the rotating shaft to rotate is installed on the top of the base. The positioning and detection mechanism includes a positioning industrial camera and a detection industrial camera for positioning the backlight panel and detecting defects after lighting. The docking mechanism includes a robotic arm installed on the top of the base, and a connector for docking with the backlight panel FPC gold fingers is installed at the end of the robotic arm. Multiple carrying mechanisms are circumferentially distributed on the side wall of the rotating shaft. Each carrying mechanism includes a carrying plate and a power source for driving the carrying plate to rotate. The carrying plate is rotatably connected to the side wall of the rotating shaft, and a vacuum adsorption device for fixing the backlight panel is installed on the top of the carrying plate. The good product conveyor belt is located on one side of the base for conveying qualified backlight panels, and the waste product conveyor belt is located on the other side of the base for conveying unqualified backlight panels.

[0007] Preferably, the positioning and detection mechanism further includes an adjustable bracket, which is fixedly mounted on the top of the base, and both the positioning industrial camera and the detection industrial camera can be detachably mounted on the adjustable bracket.

[0008] Preferably, the number of the bearing mechanisms is four, and the four bearing mechanisms are circumferentially and equally distributed on the side wall of the rotating shaft, with the included angle between two adjacent bearing mechanisms being 90°.

[0009] Preferably, the power source includes an electric push rod, the fixed end of which is rotatably connected to the side wall of the rotating shaft, and the output end of which is rotatably connected to the bottom of the bearing plate.

[0010] Preferably, the drive mechanism includes a motor, a drive gear, and a driven gear. The driven gear is fixedly sleeved on the side wall of the rotating shaft, the motor is fixedly mounted on the top of the base, the drive gear is installed at the output end of the motor, and the drive gear is meshed with the driven gear.

[0011] Preferably, the vacuum adsorption device includes a plurality of adsorption holes and a vacuum generator. The plurality of adsorption holes are evenly distributed on the top of the support plate, and the vacuum generator is installed on the bottom of the support plate. The vacuum generator is connected to the adsorption holes through an air passage.

[0012] Preferably, the angle between the conveying direction of the good product conveyor belt and the conveying direction of the waste product conveyor belt is 90°.

[0013] The beneficial effects of this utility model are:

[0014] By synchronizing and parallelizing the steps of loading, positioning and docking, inspection and unloading, the processing cycle of a single backlight panel is significantly shortened without waiting for individual processes. In addition, the integrated vision inspection and automatic sorting functions can separate good products from waste products in real time, reducing the intensity of manual operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the bearing mechanism and the driving mechanism of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the load-bearing mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Positioning and detection mechanism; 21. Adjustable bracket; 22. Positioning industrial camera; 23. Detection industrial camera; 3. Docking mechanism; 31. Robotic arm; 32. Connector; 4. Rotating shaft; 5. Drive mechanism; 51. Motor; 52. Drive gear; 53. Driven gear; 6. Bearing mechanism; 61. Bearing plate; 62. Electric push rod; 63. Vacuum adsorption device; 7. Good product conveyor belt; 8. Waste product conveyor belt. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] See appendix Figures 1 to 4 As shown, a high-precision visual positioning automatic wiring and lighting device for backlight panels includes:

[0022] The base 1 has a rotating shaft 4 rotatably connected to its top, and a drive mechanism 5 for driving the rotating shaft 4 to rotate at an angle is installed on the top of the base 1.

[0023] The positioning and detection mechanism 2 includes a positioning industrial camera 22 and a detection industrial camera 23, which are used to realize the positioning of the backlight panel and the defect detection after it is lit.

[0024] The docking mechanism 3 includes a robotic arm 31, which is mounted on the top of the base 1, and the end of the robotic arm 31 is equipped with a connector 32 for docking with the gold fingers of the backlight panel FPC.

[0025] Multiple support mechanisms 6 are distributed circumferentially on the side wall of the rotating shaft 4. Each support mechanism 6 includes a support plate 61 and a power source for driving the support plate 61 to rotate at an angle. The support plate 61 is rotatably connected to the side wall of the rotating shaft 4, and a vacuum adsorption device 63 for fixing the backlight plate is installed on the top of the support plate 61.

[0026] Good product conveyor belt 7 is set on one side of base 1 and is used to transport backlight panels that have passed inspection.

[0027] Waste conveyor belt 8 is located on the other side of base 1 and is used to transport backlight panels that fail the inspection.

[0028] In this embodiment, the operator places the backlight panel to be tested onto the carrier plate 61 at the "loading station". The vacuum adsorption device 63 is activated to generate negative pressure, which firmly adsorbs the backlight panel onto the surface of the carrier plate 61, ensuring that the backlight panel will not be displaced during subsequent movement and testing. The drive mechanism 5 drives the rotating shaft 4 to rotate 90°, and the rotating shaft 4 drives the four carrier mechanisms 6 distributed around it to rotate together. The carrier plate 61, which has just been fixed to the backlight panel, is precisely transferred from the "loading station" to the "inspection station," i.e., below the positioning and inspection mechanism 2. The positioning industrial camera 22 starts working, taking pictures of the backlight panel below. The vision processing system analyzes the image and calculates the coordinates and rotation angle deviation of the FPC gold fingers relative to the theoretical position of the connector 32 at the end of the robotic arm 31. The calculated deviation data is sent to the control system of the docking mechanism 3 in real time. Based on this data, the robotic arm 31 dynamically adjusts the pose of its end connector 32 for motion compensation, and then precisely inserts the connector 32 into the gold fingers of the backlight panel. After the connector 32 is successfully inserted, the equipment supplies power to the backlight panel through the connector 32, making it light up. Immediately afterwards, the inspection industrial camera 23 starts working, taking pictures of the surface of the lit backlight panel to detect defects such as bright spots, dark spots, uneven brightness, and foreign objects. Based on the inspection results, the equipment performs different sorting actions. If it is a good product: drive Mechanism 5 drives the rotating shaft 4 to rotate again, transferring the carrier plate 61 carrying the good backlight panel to the station on one side of the good product conveyor belt 7. The power source of this station pushes the carrier plate 61 to tilt it at a certain angle towards the good product conveyor belt 7. The vacuum adsorption device 63 is released, and the backlight panel automatically slides down onto the good product conveyor belt 7 under the action of gravity and is sent to the next stage. If it is a defective product, the rotating shaft 4 transfers the carrier plate 61 to the station on one side of the defective product conveyor belt 8. The power source pushes the carrier plate 61 to tilt it towards the defective product conveyor belt 8, and the backlight panel slides down onto the defective product conveyor belt 8 and is collected or processed. The empty carrier plate 61 returns to the loading station under the rotation of the rotating shaft 4, waiting for the next backlight panel to be loaded, realizing continuous cycle operation. By synchronizing the loading, positioning and docking, detection and unloading steps, there is no need to wait for individual processes, which significantly shortens the processing cycle of a single backlight panel. In addition, the integrated vision detection and automatic sorting functions can separate good products from defective products in real time, reducing the intensity of manual operation.

[0029] See appendix Figures 1 to 2 As shown, the positioning and detection mechanism 2 also includes an adjustable bracket 21, which is fixedly mounted on the top of the base 1. The positioning industrial camera 22 and the detection industrial camera 23 can be detachably mounted on the adjustable bracket 21.

[0030] In this embodiment, the adjustable bracket 21 is used to mount and precisely position the two industrial cameras to ensure accurate shooting field of view.

[0031] See appendix Figures 1 to 3As shown, there are four bearing mechanisms 6, which are circumferentially distributed on the side wall of the rotating shaft 4 at equal intervals, and the included angle between two adjacent bearing mechanisms 6 is 90°.

[0032] In this embodiment, the driving mechanism 5 drives the rotating shaft 4 to rotate by an angle of 90° each time, and the driving mechanism 5 drives the rotating shaft 4 to rotate intermittently each time.

[0033] See appendix Figures 3 to 4 As shown, the power source includes an electric push rod 62. The fixed end of the electric push rod 62 is rotatably connected to the side wall of the rotating shaft 4, and the output end of the electric push rod 62 is rotatably connected to the bottom of the bearing plate 61.

[0034] In this embodiment, the electric push rod 62 is the angle driving power source for the support plate 61. Through telescopic movement, it pushes the support plate 61 to rotate, thereby realizing the gravity unloading of the backlight panel.

[0035] See appendix Figure 3 As shown, the drive mechanism 5 includes a motor 51, a drive gear 52 and a driven gear 53. The driven gear 53 is fixedly sleeved on the side wall of the rotating shaft 4. The motor 51 is fixedly mounted on the top of the base 1. The drive gear 52 is installed at the output end of the motor 51 and is meshed with the driven gear 53.

[0036] In this embodiment, the motor 51 of the drive mechanism 5 is started, which drives the active gear 52 at the output end to rotate. The active gear 52 meshes with and drives the driven gear 53, thereby driving the rotating shaft 4 to rotate precisely on the base 1.

[0037] See appendix Figures 3 to 4 As shown, the vacuum adsorption device 63 includes multiple adsorption holes and a vacuum generator. The multiple adsorption holes are evenly opened on the top of the support plate 61, and the vacuum generator is installed on the bottom of the support plate 61. The vacuum generator is connected to the adsorption holes through an air passage.

[0038] In this embodiment, negative pressure adsorption is used to prevent the backlight panel from shifting during rotation and docking.

[0039] See appendix Figures 1 to 2 As shown, the angle between the conveying direction of the good product conveyor belt 7 and the conveying direction of the waste product conveyor belt 8 is 90°.

[0040] Working principle:

[0041] The operator places the backlight panel to be tested onto the carrier plate 61 at the "loading station". The vacuum adsorption device 63 is activated, generating negative pressure to firmly adsorb the backlight panel onto the surface of the carrier plate 61, ensuring that the backlight panel will not be displaced during subsequent movement and testing. The drive mechanism 5 drives the rotating shaft 4 to rotate 90°, and the rotating shaft 4 drives the four circumferentially distributed carrier mechanisms 6 to rotate together. The carrier plate 61, which has just been fixed to the backlight panel, is precisely transferred from the "loading station" to the "inspection station," i.e., below the positioning and inspection mechanism 2. The positioning industrial camera 22 starts working, taking pictures of the backlight panel below. The vision processing system analyzes the image and calculates the coordinates and rotation angle deviation of the FPC gold fingers relative to the theoretical position of the connector 32 at the end of the robotic arm 31. The calculated deviation data is sent to the control system of the docking mechanism 3 in real time. Based on this data, the robotic arm 31 dynamically adjusts the pose of its end connector 32 for motion compensation, and then precisely inserts the connector 32 into the gold fingers of the backlight panel. After the connector 32 is successfully inserted, the equipment supplies power to the backlight panel through the connector 32, making it light up. Immediately afterwards, the inspection industrial camera 23 starts working, taking pictures of the surface of the lit backlight panel to detect defects such as bright spots, dark spots, uneven brightness, and foreign objects. Based on the inspection results, the equipment performs different sorting actions. If it is a good product: drive Mechanism 5 drives the rotating shaft 4 to rotate again, transferring the carrier plate 61 carrying the good backlight panel to the station on one side of the good product conveyor belt 7. The power source of this station pushes the carrier plate 61 to tilt it at a certain angle towards the good product conveyor belt 7. The vacuum adsorption device 63 is released, and the backlight panel automatically slides down onto the good product conveyor belt 7 under the action of gravity and is sent to the next stage. If it is a defective product, the rotating shaft 4 transfers the carrier plate 61 to the station on one side of the defective product conveyor belt 8. The power source pushes the carrier plate 61 to tilt it towards the defective product conveyor belt 8, and the backlight panel slides down onto the defective product conveyor belt 8 and is collected or processed. The empty carrier plate 61 returns to the loading station under the rotation of the rotating shaft 4, waiting for the next backlight panel to be loaded, realizing continuous cycle operation. By synchronizing the loading, positioning and docking, detection and unloading steps, there is no need to wait for individual processes, which significantly shortens the processing cycle of a single backlight panel. In addition, the integrated vision detection and automatic sorting functions can separate good products from defective products in real time, reducing the intensity of manual operation.

[0042] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A high-precision visual positioning automatic wiring and lighting device for backlight panels, characterized in that: include: A base (1) is rotatably connected to a rotating shaft (4) on its top, and a driving mechanism (5) for driving the rotating shaft (4) to rotate at an angle is installed on the top of the base (1). The positioning and detection mechanism (2) includes a positioning industrial camera (22) and a detection industrial camera (23) for realizing the positioning of the backlight panel and the detection of defects after it is lit. The docking mechanism (3) includes a robotic arm (31), which is mounted on the top of the base (1) and has a connector (32) at the end of the robotic arm (31) for docking with the gold fingers of the backlight FPC. Multiple support mechanisms (6) are circumferentially distributed on the side wall of the rotating shaft (4). Each support mechanism (6) includes a support plate (61) and a power source for driving the support plate (61) to rotate at an angle. The support plate (61) is rotatably connected to the side wall of the rotating shaft (4), and a vacuum adsorption device (63) for fixing the backlight is installed on the top of the support plate (61). Good product conveyor belt (7), which is disposed on one side of the base (1) and is used to transport backlight panels that have passed inspection; Waste conveyor belt (8), which is located on the other side of the base (1), is used to transport backlight panels that fail the inspection.

2. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The positioning and detection mechanism (2) also includes an adjustable bracket (21), which is fixedly mounted on the top of the base (1). The positioning industrial camera (22) and the detection industrial camera (23) can be detachably mounted on the adjustable bracket (21).

3. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The number of the bearing mechanism (6) is four. The four bearing mechanisms (6) are circumferentially and equally distributed on the side wall of the rotating shaft (4). The included angle between two adjacent bearing mechanisms (6) is 90°.

4. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The power source includes an electric push rod (62), the fixed end of which is rotatably connected to the side wall of the rotating shaft (4), and the output end of which is rotatably connected to the bottom of the bearing plate (61).

5. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The drive mechanism (5) includes a motor (51), a drive gear (52) and a driven gear (53). The driven gear (53) is fixedly sleeved on the side wall of the rotating shaft (4). The motor (51) is fixedly mounted on the top of the base (1). The drive gear (52) is installed at the output end of the motor (51) and the drive gear (52) meshes with the driven gear (53).

6. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The vacuum adsorption device (63) includes multiple adsorption holes and a vacuum generator. The multiple adsorption holes are evenly opened on the top of the support plate (61), and the vacuum generator is installed at the bottom of the support plate (61). The vacuum generator is connected to the adsorption holes through an air passage.

7. The high-precision visual positioning automatic wiring and lighting device for backlight panels according to claim 1, characterized in that: The angle between the conveying direction of the good product conveyor belt (7) and the conveying direction of the waste product conveyor belt (8) is 90°.

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