Backlight AOI detection equipment

Abstract

The utility model relates to the technical field of detection equipment, in particular to backlight AOI (automatic optical inspection) detection equipment, which comprises a lower frame, an upper frame is detachably mounted on the top surface of the lower frame, a channel is arranged between the upper frame and the lower frame and used for allowing a streamline for conveying a backlight plate to pass through, and a detection area is arranged in the channel. A carrying table used for carrying a backlight plate for detection is arranged below the detection area, a detection unit is installed above the detection area, and an ion fan is arranged on the side, close to the inflow end of the streamline, of the channel. According to the utility model, the upper frame and the lower frame which are detachable are arranged, and the channel is arranged between the upper frame and the lower frame, so that the detection equipment can be arranged on a streamline, the backlight plates conveyed on the streamline are automatically detected one by one through the detection unit, the detection process of the backlight plates is simplified, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a backlight AOI detection equipment. Background Art

[0002] As one of the most common display devices, monitors are widely used in life and industry. Since the commonly used LCD monitors do not emit light on their panels themselves, a backlight panel is required as an auxiliary light-emitting unit. The backlight panel has LED light-emitting units arranged in a matrix to form a surface light source to provide background lighting for the entire panel.

[0003] Therefore, in the production process of backlight panels, the detection of luminous defects of backlight panels is a key link to ensure product quality. The traditional detection method is to set the AOI detection equipment at the end of the production line, and manually move the backlight panels on the production line and place them on the AOI detection equipment for inspection one by one, which has the problems of low detection efficiency and cumbersome operation.

[0004] In view of this, we propose a backlight AOI inspection device to solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a backlight AOI inspection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backlight AOI detection device, comprising a lower frame, an upper frame is detachably mounted on the top surface of the lower frame, a channel is provided between the upper frame and the lower frame for allowing the streamline for conveying the backlight panel to pass through, a detection area is provided in the channel, a carrier for carrying the backlight panel for detection is provided below the detection area, a detection unit is installed above the detection area, and an ion fan is provided on the side of the channel close to the inflow end of the streamline.

[0007] Preferably, the channel passes through two opposite side walls between the upper frame and the lower frame.

[0008] Preferably, the carrier includes a base fixedly mounted on the top surface of the lower frame, a lifting cylinder being fixed on the base, a tray for lifting the backlight panel from the streamline driven by the lifting cylinder is connected, a plug-in module which can be plugged in and out of the backlight panel is provided at the side end of the base for lighting the backlight panel, and a blocking mechanism for stopping the backlight panel is installed on the side of the base located at the outflow end of the streamline.

[0009] Preferably, the plug-in module includes a first fixed plate connected to the side end of the base, a bracket is provided on the first fixed plate, a pushing cylinder is provided at the top of the bracket, a fine-tuning component is installed on the output end of the pushing cylinder, and a plug connector is fixed at the front end of the fine-tuning component.

[0010] Preferably, the bottom of the blocking mechanism is fixedly connected to the base, and a second fixed plate is provided on the top. A blocking block is movably hinged on the second fixed plate through a hinge seat, a guide wheel is installed at one end of the blocking block, and a lifting cylinder is installed at one end of the bottom of the second fixed plate, and the output end of the lifting cylinder controls the lifting and lowering of the blocking hinge seat.

[0011] Preferably, the detection unit includes an X-axis guide rail fixedly installed inside the upper frame, an X-axis motor is provided on one side of the X-axis guide rail, the X-axis motor is driven and connected to a Z-axis guide rail sliding along the X-axis guide rail, a Z-axis motor is provided at the top of the Z-axis guide rail, the Z-axis motor is driven and connected to a Y-axis guide rail that performs lifting motion along the Z-axis guide rail, a Y-axis motor is provided at one end of the Y-axis guide rail, a slider sliding along the Y-axis guide rail is driven and connected via the Y-axis motor, and an AOI component is detachably mounted on the front end of the slider.

[0012] Preferably, an operating system connected to the carrier, the detection unit and the ion fan is provided at the front side ends of the upper frame and the lower frame perpendicular to the channel direction.

[0013] Preferably, the operating system further includes a touch screen, a PC display, buttons and a keyboard.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a detachable upper frame and a lower frame, and a channel is provided between the upper frame and the lower frame, so that the detection equipment can be arranged on the streamline, and the backlight panels transmitted on the streamline are automatically detected one by one through the detection unit, thereby simplifying the detection process of the backlight panels and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the conveying direction of the streamline during the detection of the utility model;

[0017] Figure 3 It is a schematic diagram of the platform structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the plug-in module structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the blocking mechanism structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the detection unit structure of the utility model.

[0021] In the figure:

[0022] 1. Upper frame; 2. Ion fan; 3. Detection area; 4. Carrier; 41. Plug-in module; 411. First fixed plate; 412. Bracket; 413. Push cylinder; 414. Fine-tuning assembly; 415. Plug connector; 42. Lifting cylinder; 43. Base; 44. Blocking mechanism; 441. Lifting cylinder; 442. Second fixed plate; 443. Blocking block; 444. Articulated seat; 45. Tray; 5. Lower frame; 6. Operating system; 7. Detection unit; 71. X-axis guide rail; 72. Z-axis guide rail; 73. Y-axis guide rail; 74. AOI assembly. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a backlight AOI detection device proposed by the utility model includes a lower frame 5, an upper frame 1 is detachably mounted on the top surface of the lower frame 5, a channel is provided between the upper frame 1 and the lower frame 5, for allowing the streamline for conveying the backlight panel to pass through, a detection area 3 is provided in the channel, a carrier 4 for carrying the backlight panel for detection is provided below the detection area 3, a detection unit 7 is installed above the detection area 3, and an ion fan 2 is provided on the side of the channel close to the inflow end of the streamline.

[0026] Furthermore, the channel passes through two opposite side walls between the upper frame 1 and the lower frame 5 .

[0027] Furthermore, the carrier 4 includes a base 43 fixedly mounted on the top surface of the lower frame 5, a lifting cylinder 42 is fixed on the base 43, a tray 45 for lifting the backlight panel from the streamline is driven by the lifting cylinder 42, a plug-in module 41 which can be plugged in and out of the backlight panel is provided at the side end of the base 43 for lighting the backlight panel, and a blocking mechanism 44 for stopping the backlight panel is installed on one side of the base 43 located at the outflow end of the streamline.

[0028] Furthermore, the plug-in module 41 includes a first fixed plate 411 connected to the side end of the base 43, a bracket 412 is provided on the first fixed plate 411, a pushing cylinder 413 is provided at the top of the bracket 412, a fine-tuning component 414 is installed on the output end of the pushing cylinder 413, and a plug connector 415 is fixed to the front end of the fine-tuning component 414.

[0029] Furthermore, the bottom of the blocking mechanism 44 is fixedly connected to the base 43, and a second fixed plate 442 is provided on the top. A blocking block 443 is movably hinged on the second fixed plate 442 through a hinge seat 444, and a guide wheel is installed at one end of the blocking block 443. A lifting cylinder 441 is installed at one end of the bottom of the second fixed plate 442, and the output end of the lifting cylinder 441 controls the lifting and lowering of the blocking hinge seat 444.

[0030] Furthermore, the detection unit 7 includes an X-axis guide rail 71 fixedly installed inside the upper frame 1, an X-axis motor is provided on one side of the X-axis guide rail 71, and the X-axis motor is driven and connected to a Z-axis guide rail 72 that slides along the X-axis guide rail 71, a Z-axis motor is provided at the top of the Z-axis guide rail 72, and the Z-axis motor is driven and connected to a Y-axis guide rail 73 that performs a lifting movement along the Z-axis guide rail 72, a Y-axis motor is provided at one end of the Y-axis guide rail 73, and a slider that slides along the Y-axis guide rail 73 is driven and connected by the Y-axis motor, and an AOI component 74 is detachably installed at the front end of the slider.

[0031] Furthermore, an operating system 6 connected to the carrier 4 , the detection unit 7 , and the ion fan 2 is provided at the front side ends of the upper frame 1 and the lower frame 5 perpendicular to the channel direction.

[0032] Furthermore, the operating system 6 also includes a touch screen, a PC monitor, buttons and a keyboard, which facilitates the operator to view and control the equipment. The touch screen displays the current working status, test results and other information. The operator can set parameters for the equipment, start or pause testing through buttons and keyboards.

[0033] The working principle of the backlight AOI detection device based on the first embodiment is:

[0034] When in use, the backlight panel is fixed on the carrier, which is placed on the streamline and transported into the channel through the streamline to enter the detection area 3. The ion fan 2 on the side of the inflow end of the streamline will first remove dust from the backlight panel to ensure that subsequent detection is not affected by dust. The blocking block 443, under the lifting action of the lifting cylinder 441, stops the carrier carrying the backlight panel in the detection area 3 through the guide wheel. The tray 45 on the carrier 4 lifts the backlight panel from the streamline under the drive of the upper cylinder 42 to ensure that the backlight panel is located at the correct position of the detection area 3. The plug-in module 41 pushes the cylinder through 413 to plug the plug connector 415 with the interface of the backlight panel to provide power for the backlight panel and light up the backlight panel. The AOI component 74 can test different types of products. By setting the XYZ axis coordinate position and saving it in the operating system recipe parameters, the camera takes a photo test at the set position to detect the backlight panel. There is no need to move when taking photos. It identifies and records whether there are dark spot defects on the surface of the backlight panel.

[0035] If the detection unit 7 detects that there is no defect in the backlight panel, it pushes the cylinder 413 to pull out the plug connector 415, and the tray 45 descends to make the backlight panel return to the streamline. The detection unit 7 uploads the detection result to the operating system 6. The operating system 6 returns the instruction to control the blocking mechanism 44 to retract the blocking block 443, and the backlight panel flows out of the detection device along the streamline; the detection unit 7 detects that there is a defect in the backlight panel and the product does not meet the standard (NG). The detection equipment will trigger an alarm, the touch screen will display the alarm information, and the PC monitor will prompt the defect location, so that the operator can check the product, clean the foreign matter on the backlight panel, and then retry. The tray 45 lifts the backlight panel again, the plug-in module 41 connects the backlight panel and lights it up, and the AOI component 74 takes a photo for detection again. If the detection passes, the blocking mechanism 44 descends and the backlight panel flows out. If it is still NG after re-detection, until the operator confirms that the product is a defective product, the AOI detection unit 7 will record the information of the defective product and upload it to the operating system 6 for record.

[0036] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A backlight AOI inspection device, characterized in that: The invention comprises a lower frame (5), an upper frame (1) being detachably mounted on the top surface of the lower frame (5), a channel being arranged between the upper frame (1) and the lower frame (5) so that a streamline for conveying a backlight panel passes through, a detection area (3) being arranged in the channel, a carrier (4) for carrying the backlight panel for detection being arranged below the detection area (3), a detection unit (7) being mounted above the detection area (3), and an ion fan (2) being arranged on one side of the channel close to the inflow end of the streamline.

2. The backlight AOI inspection device according to claim 1, characterized in that: The channel passes through the opposite side walls of the upper frame (1) and the lower frame (5).

3. The backlight AOI inspection device according to claim 1, characterized in that: The carrier (4) comprises a base (43) fixedly mounted on the top surface of the lower frame (5), a top cylinder (42) fixedly mounted on the base (43), a tray (45) for lifting the backlight panel from the streamline driven by the top cylinder (42), a plug-in module (41) which can be plugged in and out of the backlight panel is provided at the side end of the base (43) for lighting the backlight panel, and a blocking mechanism (44) for stopping the backlight panel carrier on the streamline is installed on the side of the base (43) located at the outflow end of the streamline.

4. The backlight AOI inspection device according to claim 3, characterized in that: The plug-in module (41) comprises a first fixing plate (411) connected to a side end of a base (43); a bracket (412) is provided on the first fixing plate (411); a push cylinder (413) is provided at the top end of the bracket (412); a fine-tuning component (414) is installed at the output end of the push cylinder (413); and a plug connector (415) is fixed at the front end of the fine-tuning component (414).

5. The backlight AOI inspection device according to claim 3, characterized in that: The bottom of the blocking mechanism (44) is fixedly connected to the base (43), and the top is provided with a second fixed plate (442). A blocking block (443) is movably hinged on the second fixed plate (442) through a hinge seat (444), and a guide wheel is installed at one end of the blocking block (443). A lifting cylinder (441) is installed at one end of the bottom of the second fixed plate (442), and the output end of the lifting cylinder (441) controls the lifting and lowering of the blocking hinge seat (444).

6. The backlight AOI inspection device according to claim 1, characterized in that: The detection unit (7) comprises an X-axis guide rail (71) fixedly mounted inside the upper frame (1); an X-axis motor is provided on one side of the X-axis guide rail (71); the X-axis motor is drivingly connected to a Z-axis guide rail (72) that slides along the X-axis guide rail (71); a Z-axis motor is provided at the top end of the Z-axis guide rail (72); the Z-axis motor is drivingly connected to a Y-axis guide rail (73) that moves forward and backward along the Z-axis guide rail (72); a Y-axis motor is provided at one end of the Y-axis guide rail (73); a slider that slides along the Y-axis guide rail (73) is drivingly connected via the Y-axis motor; an AOI component (74) is detachably mounted on the front end of the slider.

7. The backlight AOI inspection device according to claim 1, characterized in that: An operating system (6) connected to the carrier (4), the detection unit (7) and the ion fan (2) is provided at the front ends of the upper frame (1) and the lower frame (5) perpendicular to the channel direction.

8. The backlight AOI inspection device according to claim 7, characterized in that: The operating system (6) also includes a touch screen, a PC display, buttons and a keyboard.

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