An AOI automatic optical inspection loading and unloading machine

Abstract

The present invention discloses an AOI automatic optical inspection loading and unloading machine, comprising a frame, a loading device, a picking device, a unloading device and a control device, wherein the loading device comprises an input mechanism, a loading mechanism and a visual positioning mechanism, wherein the input mechanism comprises at least two groups, and is arranged on the frame in a vertical direction, for inputting a liquid crystal screen material box to be tested, wherein the picking device is arranged in a front middle position of the loading device and the unloading device, for sucking the liquid crystal screen, wherein the unloading device comprises an output mechanism, a unloading mechanism and a mechanical positioning mechanism, wherein the output mechanism comprises at least two groups, and is arranged on the frame in a vertical direction, for outputting a qualified liquid crystal screen material box. The present invention provides an AOI automatic optical inspection loading and unloading machine, which integrates the AOI loading and unloading process into one device, saves space cost and labor cost, and the whole operation of the equipment is controlled by automation, which is efficient, reduces production cost, and has accurate loading and unloading positioning and high reliability of detection results.

Description

Technical Field

[0001] The invention relates to the field of supporting devices for AOI inspection equipment, and in particular to an AOI automatic optical inspection loading and unloading machine. Background Art

[0002] The full name of AOI is automatic optical inspection, which is based on optical principles to detect abnormal circuits in the exposed electrode area of ​​TFT-CELL and Module (defects such as open or short circuits caused by scratches caused by the process and improper operation).

[0003] The existing AOI loading and unloading is mainly done through assembly line technology or manually. The assembly line technology requires a large space, and the manual loading and unloading operation is very inefficient. For the inspection of batches of LCD screens, it requires a large manpower cost, resulting in an increase in product costs. Summary of the invention

[0004] The purpose of the present invention is to provide an AOI automatic optical inspection loading and unloading machine, which integrates the AOI loading and unloading processes into one device, saving space cost and labor cost. The entire operation of the equipment is controlled by automation, which is efficient and reduces production costs. The loading and unloading positioning is accurate, and the detection results are highly reliable.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An AOI automatic optical inspection loading and unloading machine includes a frame, a loading device, a picking device, a unloading device and a control device, wherein:

[0007] The feeding device includes an input mechanism, a feeding mechanism and a visual positioning mechanism. The input mechanism includes at least two groups, and is arranged on the frame in a vertical direction, and is used to input a material box of a liquid crystal screen to be tested. The feeding mechanism can be raised and lowered at the output end of the input mechanism, and is used to receive the material box of the liquid crystal screen to be tested on the input mechanism. The visual positioning mechanism is arranged above the feeding mechanism, and is used to obtain the orientation information of the liquid crystal screen to be tested in the material box.

[0008] The material taking device is arranged in the middle position of the front side of the loading device and the unloading device, and is used to suck the liquid crystal screen. The material taking device includes a mechanical arm and a first vacuum suction device arranged on the mechanical arm;

[0009] The unloading device includes an output mechanism, a unloading mechanism and a mechanical positioning mechanism. The output mechanism includes at least two groups and is arranged on the frame in a vertical direction for outputting qualified LCD screen boxes. The unloading mechanism can be raised and lowered at the input end of the output mechanism. The unloading mechanism is used to place qualified empty LCD screen boxes. The mechanical positioning mechanism is arranged on the unloading mechanism for locating the position of qualified empty LCD screen boxes.

[0010] Preferably, the input mechanism comprises a first conveying frame, a first conveying roller group and a first conveying motor, the first conveying frame is fixed on the frame, the first conveying roller group is rotatably arranged on the first conveying frame and driven by the first conveying motor, the output end of the first conveying frame is provided with a first output positioning sensor, and the input end is provided with a first input positioning sensor;

[0011] The feeding mechanism comprises a feeding slide rail, a feeding frame, a feeding screw rod, a feeding base, a feeding motor, a second conveying frame, a second conveying roller group and a second conveying motor, a feeding base plate is provided on the frame, the feeding slide rail and the feeding base are fixedly mounted on the feeding base plate, the feeding frame is provided with a feeding slide seat slidably arranged on the feeding slide rail, the feeding screw rod is rotatably arranged on the feeding base and is driven by the feeding motor, the feeding frame cooperates with the feeding screw rod, the second conveying frame is fixed on the feeding frame, the second conveying roller group is rotatably arranged on the second conveying frame and is driven by the second conveying motor, the second conveying roller group cooperates with the first conveying roller group, the feeding frame is provided with a second mounting block, the second mounting block is provided with a second mounting slot, a second positioning sensor is provided in the second mounting slot, a feeding stroke slide rail and a feeding stroke switch slidably arranged on the feeding stroke slide rail are fixedly mounted on the feeding base plate.

[0012] Preferably, the output mechanism comprises a third conveying frame, a third conveying roller group and a third conveying motor, the third conveying frame is fixed on the frame, the third conveying roller group is rotatably arranged on the third conveying frame and driven by the third conveying motor, the output end of the third conveying frame is provided with a third output positioning sensor, and the input end is provided with a third input positioning sensor;

[0013] The unloading mechanism comprises an unloading slide rail, an unloading frame, an unloading screw rod, an unloading base, an unloading motor, a fourth conveying frame, a fourth conveying roller group and a fourth conveying motor, the frame is provided with an unloading base plate, the unloading slide rail and the unloading base are fixedly arranged on the unloading base plate, the unloading frame is provided with an unloading slide seat slidably arranged on the unloading slide rail, the unloading screw rod is rotatably arranged on the unloading base and is driven by the unloading motor, the unloading frame cooperates with the unloading screw rod, the fourth conveying frame is fixed on the unloading frame, the fourth conveying roller group is rotatably arranged on the fourth conveying frame and is driven by the fourth conveying motor, the fourth conveying roller group cooperates with the third conveying roller group, the unloading frame is provided with a fourth mounting block, the fourth mounting block is provided with a fourth mounting slot, the fourth mounting slot is provided with a fourth positioning sensor, and a unloading stroke slide rail and an unloading stroke switch slidably arranged on the unloading stroke slide rail are fixedly arranged on the unloading base plate.

[0014] Preferably, the visual positioning mechanism includes a lens mounting plate, a CCD camera and an image processing module. The lens mounting plate is arranged on the frame for installing the CCD camera. The CCD camera is used to collect image information in the material box on the feeding mechanism and send it to the image processing module to obtain the position information of the LCD screen to be tested in the material box.

[0015] Preferably, the mechanical positioning mechanism includes a positioning rail, a positioning base, a positioning slide, a positioning screw and a positioning clamping rod. The positioning rail is arranged on the unloading mechanism, and the positioning base is fixed at both ends. Two groups of positioning slides with opposite sliding directions are provided on the positioning rail. The positioning screw is rotatably arranged on the positioning base, and a rotating helm and a rotating lock for locking the rotating helm are provided at one end. The positioning screw cooperates with the positioning slide, and the positioning clamping rod is arranged on the positioning slide for positioning positions on both sides of the position of the qualified LCD screen empty material box.

[0016] Preferably, a transfer device is also included, which includes a mounting base, a vacuum suction carrier, a flip base, a flip block, a flip motor and a second vacuum suction device. The vacuum suction carrier is fixed on the mounting base, a positioning groove is provided on the vacuum suction carrier, and a fifth positioning sensor is provided in the positioning groove. The flip base is arranged on one side of the vacuum suction carrier, the flip block is rotatably arranged on the flip base through a flip shaft, and is driven by the flip motor. An angle sensor is also connected to the flip shaft, and the flip block is provided with the second vacuum suction device.

[0017] Preferably, the first vacuum suction device comprises a first suction frame and a first movable suction nozzle, the first suction frame is provided with a first adjusting groove, a first sliding bottom plate is slidably provided on the first adjusting groove, the first sliding bottom plate is provided with a first threaded column passing through the first adjusting groove, the first threaded column cooperates with a first nut to fix the first sliding bottom plate on the first adjusting groove, and the first movable suction nozzle is arranged on the first sliding bottom plate.

[0018] The second vacuum suction device includes a second suction frame, a second fixed suction nozzle and a second movable suction nozzle. The second fixed suction nozzle is provided at the center position of the second suction frame. The second suction frame is provided with a second adjusting groove. A second sliding bottom plate is slidably provided on the second adjusting groove. The second sliding bottom plate is provided with a second threaded column passing through the second adjusting groove. The second threaded column cooperates with a second nut to fix the second sliding bottom plate on the second adjusting groove. The second movable suction nozzle is arranged on the second sliding bottom plate.

[0019] Preferably, it also includes a precision positioning device, which includes a fixed base plate, a transverse base plate, a transverse block, a transverse motor, a vertical base plate, a vertical hand wheel, a vertical block and a CCD. The fixed base plate and the transverse base plate are both fixed on the frame, the transverse base plate is provided with a transverse track, the transverse block is slidably arranged on the transverse track and is driven by the transverse motor, the transverse block and the fixed base plate are both provided with a vertical base plate, the vertical base plate is provided with a vertical track, the vertical block is slidably arranged on the vertical track and is driven by the vertical hand wheel, the vertical block is provided with the CCD, and the transverse base plate is provided with a transverse travel limit switch.

[0020] Preferably, it also includes a static electricity removal device arranged above the input mechanism, the static electricity removal device includes a fixed base, a sliding base, a mounting frame, a connecting frame and an ion blower, the fixed base is arranged on the frame, blocks are provided on both sides of the fixed base, the blocks and the fixed base cooperate to form a slot for the sliding base to slide, the sliding base is provided with a locking slot, the locking slot is provided with a sliding lock for locking the sliding base to the fixed base, one end of the sliding base is connected to the mounting frame, the connecting frames are provided on both sides of the mounting frame, the connecting frame is provided with a rotating port, connecting arms are provided on both sides of the ion blower, the connecting arms are provided with a rotating column for rotatably connected to the rotating port, and the ion blower is provided with multiple air outlets and air inlet pipes.

[0021] Preferably, it also includes a defective product placement table, which is connected to the frame through a loose-leaf hinge, and is provided with a transverse adjustment slot, a longitudinal adjustment slot and a sensing slot, a transverse stopper and a transverse locking piece for fixing the transverse stopper are slidably provided on the transverse adjustment slot, a longitudinal stopper and a longitudinal locking piece for fixing the longitudinal stopper are slidably provided on the longitudinal adjustment slot, a sixth positioning sensor is provided under the sensing slot, and a card plate is also provided on the defective product placement table.

[0022] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0023] 1. The AOI automatic optical inspection loading and unloading machine of the present invention integrates the AOI loading and unloading processes into one device, saving space cost and labor cost. The operation of the equipment is controlled by automation throughout the whole process, which is efficient and reduces production cost. The loading and unloading positioning is accurate and the detection result is highly reliable.

[0024] 2. The present invention provides an AOI automatic optical inspection loading and unloading machine, in which the loading mechanism of the loading device cooperates with multiple sets of input mechanisms for automatic loading, and the unloading mechanism of the unloading device cooperates with multiple sets of output mechanisms for automatic unloading. It can transport multiple material boxes for placing LCD screens, and one operator can control multiple AOI loading and unloading machines to reduce labor costs.

[0025] 3. The present invention provides an AOI automatic optical inspection loading and unloading machine, wherein a turning device is provided with a flipping mechanism, which can flip the inspected LCD screen and then transport it away by the unloading device.

[0026] 4. The present invention provides an AOI automatic optical inspection loading and unloading machine. The loading device is provided with a visual positioning mechanism to obtain the orientation information of the LCD screen to be tested in the material box, so that the robot arm can accurately grab the LCD screen to be tested in the material box. The unloading device is provided with a mechanical positioning mechanism to locate the position of the empty material box of qualified products, so that the robot arm can accurately place the qualified LCD screen into the empty material box.

[0027] 5. The AOI automatic optical inspection loading and unloading machine of the present invention is provided with a plurality of positioning sensors, and the loading and unloading positioning is accurate, thereby improving the automation degree of the device and the reliability of the inspection result is high.

[0028] 6. The present invention provides an AOI automatic optical inspection loading and unloading machine. The first movable suction nozzle on the first vacuum suction device and the second movable suction nozzle on the second vacuum suction device can adjust their positions according to LCD screens of different sizes, and the effect of sucking the LCD screen is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of another viewing angle of the assembly of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the output mechanism and the input mechanism of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the output mechanism and the input mechanism of the present invention from another perspective;

[0033] Figure 5 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the blanking mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the mechanical positioning mechanism of the present invention;

[0036] Figure 8 It is a structural schematic diagram of the second conveying roller group in the feeding mechanism of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of the visual positioning mechanism of the present invention;

[0038] Fig.10 This is a schematic structural diagram of the material taking device of the present invention;

[0039] Fig.11 It is a schematic structural diagram of the first vacuum material suction device of the present invention;

[0040] Fig.12 It is a schematic diagram of the structure of the transfer device of the present invention;

[0041] Fig.13 It is a structural schematic diagram of the precise positioning device of the present invention;

[0042] Fig.14 This is a schematic diagram of the structure of the static electricity removal device of the present invention;

[0043] Fig.15 It is a schematic diagram of the structure of the defective product placement table of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Example

[0047] Cooperate Figures 1 to 15 As shown, the present invention discloses an AOI automatic optical inspection loading and unloading machine, comprising a frame 1, a loading device 2, a material taking device 3 and a material unloading device 4, wherein:

[0048] Please refer to Figure 1 and Figure 2 As shown, the feeding device 2 includes an input mechanism 21, a feeding mechanism 22 and a visual positioning mechanism 23. The input mechanism 21 includes two groups, an upper group and an lower group, and is arranged on the frame 1 along the vertical direction, and is used to input the liquid crystal screen material box to be tested. The feeding mechanism 22 can be raised and lowered and arranged at the output end of the input mechanism 21, and is used to receive the liquid crystal screen material box to be tested on the input mechanism 21. The visual positioning mechanism 23 is arranged above the feeding mechanism 22, and is used to obtain the orientation information of the liquid crystal screen to be tested in the material box;

[0049] The material taking device 3 is arranged in the middle position of the front side of the loading device 2 and the unloading device 4, and is used to suck the liquid crystal screen. The material taking device 3 includes a mechanical arm 31 and a first vacuum material sucking device 32 arranged on the mechanical arm 31;

[0050] The unloading device 4 includes an output mechanism 41, a unloading mechanism 42 and a mechanical positioning mechanism 43. The output mechanism 41 includes two groups, an upper group and an lower group, and is arranged on the frame 1 along the vertical direction for outputting qualified LCD screen boxes. The unloading mechanism 42 can be raised and lowered at the input end of the output mechanism 41. The unloading mechanism 42 is used to place qualified empty LCD screen boxes. The mechanical positioning mechanism 43 is arranged on the unloading mechanism 42 for locating the position of the qualified empty LCD screen boxes.

[0051] Please refer to Figure 3 and Figure 4 As shown, the input mechanism 21 includes a first conveying frame 211, a first conveying roller group 212 and a first conveying motor 213. The first conveying frame 211 is fixed on the frame 1, the first conveying roller group 212 is rotatably arranged on the first conveying frame 211 and driven by the first conveying motor 213. The output end of the first conveying frame 211 is provided with a first output positioning sensor 2111, and the input end is provided with a first input positioning sensor 2112;

[0052] Please refer to Figure 5 and Figure 8As shown, the feeding mechanism 22 includes a feeding slide rail 221, a feeding frame 222, a feeding screw rod 223, a feeding base 224, a feeding motor 225, a second conveying frame 226, a second conveying roller group 227 and a second conveying motor 228. The frame 1 is provided with a feeding substrate 11, the feeding slide rail 221 and the feeding base 224 are fixed on the feeding substrate 11, the feeding frame 222 is provided with a feeding slide 2221 slidably arranged on the feeding slide rail 221, the feeding screw rod 223 is rotatably arranged on the feeding base 224 and driven by the feeding motor 225, the feeding frame 222 cooperates with the feeding screw rod 223, the second conveying frame 226 is fixed on the feeding frame 222, and the second conveying roller group 227 is rotatably arranged on the second conveying frame 226, and is driven by a second conveying motor 228, the second conveying roller group 227 cooperates with the first conveying roller group 212, a second mounting block 2222 is provided on the loading frame 222, a second mounting slot 2223 is opened on the second mounting block 2222, a second positioning sensor 2224 is provided in the second mounting slot 2223, a loading stroke slide 111 and a loading stroke switch 112 are provided on the loading substrate 11, the loading stroke switch 112 is slidably set on the loading stroke slide 111, the loading stroke switch includes two start and stop stroke points for controlling the upper and lower points of the loading mechanism The extreme position of the limit position, so as to cooperate with the upper and lower groups of input mechanisms 21 for loading, and the start and stop stroke points can adjust the stroke distance through the loading stroke slide 111.

[0053] Please refer to Figure 3 and Figure 4 As shown, the output mechanism 41 includes a third conveying frame 411, a third conveying roller group 412 and a third conveying motor 413. The third conveying frame 411 is fixed on the frame 1, and the third conveying roller group 412 is rotatably arranged on the third conveying frame 411 and driven by the third conveying motor 413. The output end of the third conveying frame 411 is provided with a third output positioning sensor 4111, and the input end is provided with a third input positioning sensor 4112;

[0054] Please refer to Figure 6As shown, the unloading mechanism 42 includes an unloading slide rail 421, an unloading frame 422, an unloading screw rod 423, an unloading base 424, an unloading motor 425, a fourth conveying frame 426, a fourth conveying roller group 427 and a fourth conveying motor 428. The frame 1 is provided with an unloading base plate 12, the unloading slide rail 421 and the unloading base 424 are fixedly arranged on the unloading base plate 12, the unloading frame 422 is provided with an unloading slide seat 4221 slidably arranged on the unloading slide rail 421, the unloading screw rod 423 is rotatably arranged on the unloading base 424 and driven by the unloading motor 425, the unloading frame 422 cooperates with the unloading screw rod 423, the fourth conveying frame 426 is fixedly arranged on the unloading frame 422, and the fourth conveying roller group 427 is rotatably arranged on the fourth conveying frame 426 The fourth conveying roller group 427 cooperates with the third conveying roller group 412, and the unloading frame 422 is provided with a fourth mounting block 4222, and the fourth mounting block 4222 is provided with a fourth mounting groove 4223, and the fourth mounting groove 4223 is provided with a fourth positioning sensor 4224, and the unloading substrate 12 is provided with an unloading stroke slide rail 121 and a unloading stroke switch 122, and the unloading stroke switch 122 is slidably set on the unloading stroke slide rail 121, and the unloading stroke switch 122 includes two start and stop stroke points for controlling the upper and lower points of the unloading mechanism 42. The extreme positions, so as to cooperate with the upper and lower groups of output mechanisms 41 for loading, and the start and stop stroke points can adjust the stroke distance through the unloading stroke slide rail 121.

[0055] Please refer to Fig. 9 As shown, the visual positioning mechanism 23 includes a lens mounting plate 231, a CCD camera 232 and an image processing module 233. The lens mounting plate 231 is arranged on the frame 1 for installing the CCD camera 232. The CCD camera 232 is used to collect image information in the material box on the feeding mechanism 22, and send it to the image processing module 233 to obtain the position information of the LCD screen to be tested in the material box, so as to facilitate the robot arm 31 to accurately grasp the LCD screen to be tested.

[0056] Please refer to Figure 7 As shown, the mechanical positioning mechanism 43 includes a positioning rail 431, a positioning base 432, a positioning slide 433, a positioning screw 434 and a positioning clamping rod 435. The positioning rail 431 is arranged on the unloading mechanism 42, and the positioning base 432 is fixed at both ends. The positioning rail 431 is provided with two groups of positioning slides 433 with opposite sliding directions. The positioning screw 434 is rotatably arranged on the positioning base 232, and one end is provided with a rotating helmsman 4341 and a rotating lock 4342 for locking the rotating helmsman 4341. The positioning screw 434 cooperates with the positioning slide 433. The positioning clamping rod 435 is arranged on the positioning slide 433 for positioning the positions on both sides of the position of the qualified LCD screen empty box, so as to facilitate the mechanical arm 31 to place the qualified LCD screen.

[0057] Please refer to Fig.12 As shown, it also includes a transfer device 5, which includes a mounting base 51, a vacuum suction carrier 52, a flip base 53, a flip block 54, a flip motor 55 and a second vacuum suction device 56. The vacuum suction carrier 52 is fixed on the mounting base 51, and a positioning groove 521 is provided on the vacuum suction carrier 52. A fifth positioning sensor 522 is provided in the positioning groove 521. The flip base 53 is arranged on one side of the vacuum suction carrier 52. The flip block 54 is rotatably arranged on the flip base 53 through a flip shaft 541 and is driven by a flip motor 55. The flip shaft 541 is also connected to an angle sensor 542 for locating the flip angle of the second vacuum suction device 56 to facilitate suction of the LCD screen for flipping. The flip block 54 is provided with a second vacuum suction device 56.

[0058] Please refer to Fig.11 As shown, the first vacuum suction device 32 includes a first suction frame 321 and a first movable suction nozzle 322. A first adjusting groove 3211 is opened on the first suction frame 321. A first sliding bottom plate 323 is slidably provided on the first adjusting groove 3211. The first sliding bottom plate 323 is provided with a first threaded column 3231 passing through the first adjusting groove 3211. The first threaded column 3231 cooperates with the first nut 3232 to fix the first sliding bottom plate 323 on the first adjusting groove 3211. The first movable suction nozzle 322 is arranged on the first sliding bottom plate 322.

[0059] Please refer to Fig.12 As shown, the second vacuum suction device 56 includes a second suction frame 561, a second fixed suction nozzle 562 and a second movable suction nozzle 563. The second fixed suction nozzle 562 is provided at the center position of the second suction frame 561. The second suction frame 561 is provided with a second adjusting groove 5611. The second sliding bottom plate 564 is slidably provided on the second adjusting groove 5611. The second sliding bottom plate 564 is provided with a second threaded column 5641 that passes through the second adjusting groove 5611. The second threaded column 5641 cooperates with the second nut 5642 to fix the second sliding bottom plate 564 on the second adjusting groove 5611. The second movable suction nozzle 563 is arranged on the second sliding bottom plate 564.

[0060] Please refer to Fig.13As shown, the fine positioning device 6 is also included. The fine positioning device 6 includes a fixed base plate 61, a lateral base plate 62, a lateral block 63, a lateral motor 64, a vertical base plate 65, a vertical hand wheel 66, a vertical block 67 and a CCD 68. The fixed base plate 61 and the lateral base plate 62 are both fixedly mounted on the frame 1. The lateral base plate 62 is provided with a lateral rail 621. The lateral block 63 is slidably arranged on the lateral rail 621 and driven by the lateral motor 64. The lateral block 63 and the fixed base plate 61 are both provided with a vertical base plate 65. A vertical track 651 is provided on the vertical moving substrate 65, a vertical moving block 67 is slidably set on the vertical moving track 651 and is driven by a vertical moving hand wheel 66, a CCD68 is provided on the vertical moving block 67, a horizontal moving stroke limit switch 69 is provided on the horizontal moving substrate 62, and CCD68 includes a fixed CCD681 whose horizontal position is fixed on the fixed substrate 61 and a mobile CCD682 on the horizontal moving block 63 that can move horizontally following the horizontal moving block 63, and the position of the mobile CCD682 can be adjusted according to the size of the LCD screen.

[0061] Please refer to Fig.14 As shown, the static electricity removal device 7 is also provided above the input mechanism 21. The static electricity removal device 7 includes a fixed base 71, a sliding base 72, a mounting frame 73, a connecting frame 74 and an ion blower 75. The fixed base 71 is provided on the frame 1. Blocks 76 are provided on both sides of the fixed base 71. The block 76 and the fixed base 71 cooperate to form a slot 711 for sliding the sliding base 72. The sliding base 72 is provided with a locking slot 721. The locking slot 721 is provided with a sliding member for locking the sliding base 72 on the fixed base. A locking member 722, one end of the sliding base 72 is connected to a mounting frame 73, connecting frames 74 are provided on both sides of the mounting frame 73, a rotating port 741 is provided on the connecting frame 74, an ion fan 75 is used to remove static electricity on the surface of the LCD screen to be tested, and connecting arms 77 are provided on both sides thereof, a rotating column 771 is provided on the connecting arm 77 for rotationally connecting to the rotating port 741, the ion fan can adjust the angle through the connecting arm 77, and adjust the distance through the sliding base 72, and a plurality of air outlets 751 and an air inlet pipe 752 are provided on the ion fan 75.

[0062] Please refer to Fig.15 As shown, it also includes a defective product placement table 8, which is connected to the frame 1 through a loose-leaf 81. The defective product placement table 8 is provided with a transverse adjustment slot 81, a longitudinal adjustment slot 82 and a sensing slot 83. A transverse stopper 84 and a transverse locking piece 841 for fixing the transverse stopper 84 are slidably provided on the transverse adjustment slot 81. A longitudinal stopper 85 and a longitudinal locking piece 851 for fixing the longitudinal stopper 85 are slidably provided on the longitudinal adjustment slot 82. A sixth positioning sensor 86 is provided under the sensing slot 83. The defective product placement table 8 is also provided with a clamping plate 87. The clamping plate 87, the transverse stopper 84 and the longitudinal stopper 85 are used to clamp the defective empty material box, and can be adjusted according to the size of the LCD screen.

[0063] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An AOI automatic optical inspection loading and unloading machine, characterized in that: It includes a frame, a loading device, a retrieving device, a unloading device and a control device, wherein: The feeding device includes an input mechanism, a feeding mechanism and a visual positioning mechanism. The input mechanism includes at least two groups, and is arranged on the frame in a vertical direction, and is used to input a material box of a liquid crystal screen to be tested. The feeding mechanism can be raised and lowered at the output end of the input mechanism, and is used to receive the material box of the liquid crystal screen to be tested on the input mechanism. The visual positioning mechanism is arranged above the feeding mechanism, and is used to obtain the orientation information of the liquid crystal screen to be tested in the material box. The material taking device is arranged in the middle position of the front side of the loading device and the unloading device, and is used to suck the liquid crystal screen. The material taking device includes a mechanical arm and a first vacuum suction device arranged on the mechanical arm; The unloading device includes an output mechanism, an unloading mechanism and a mechanical positioning mechanism. The output mechanism includes at least two groups, and is arranged on the frame in a vertical direction, and is used to output qualified liquid crystal screen boxes. The unloading mechanism can be lifted and lowered at the input end of the output mechanism. The unloading mechanism is used to place qualified empty liquid crystal screen boxes. The mechanical positioning mechanism is arranged on the unloading mechanism, and is used to locate the position of the qualified empty liquid crystal screen box. It also includes a transfer device, which includes a mounting base, a vacuum suction carrier, a flip base, a flip block, a flip motor and a second vacuum suction device. The vacuum suction carrier is fixedly mounted on the mounting base, a positioning groove is provided on the vacuum suction carrier, and a fifth positioning sensor is provided in the positioning groove. The flip base is arranged on one side of the vacuum suction carrier, the flip block is rotatably arranged on the flip base through a flip shaft, and is driven by the flip motor. The flip shaft is also connected to an angle sensor, and the flip block is provided with the second vacuum suction device; It also includes a precision positioning device, which includes a fixed base plate, a transverse base plate, a transverse block, a transverse motor, a vertical base plate, a vertical hand wheel, a vertical block and a CCD. The fixed base plate and the transverse base plate are both fixedly mounted on the frame, the transverse base plate is provided with a transverse track, the transverse block is slidably mounted on the transverse track and driven by the transverse motor, the transverse block and the fixed base plate are both provided with a vertical base plate, the vertical base plate is provided with a vertical track, the vertical block is slidably mounted on the vertical track and driven by the vertical hand wheel, the vertical block is provided with the CCD, and the transverse base plate is provided with a transverse travel limit switch; It also includes a defective product placement table, which is connected to the frame through a loose-leaf hinge, and is provided with a transverse adjustment slot, a longitudinal adjustment slot and a sensing slot, a transverse stopper and a transverse locking piece for fixing the transverse stopper are slidably provided on the transverse adjustment slot, a longitudinal stopper and a longitudinal locking piece for fixing the longitudinal stopper are slidably provided on the longitudinal adjustment slot, a sixth positioning sensor is provided under the sensing slot, and a card plate is also provided on the defective product placement table.

2. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: The input mechanism comprises a first conveying frame, a first conveying roller group and a first conveying motor, wherein the first conveying frame is fixed on the frame, the first conveying roller group is rotatably arranged on the first conveying frame and driven by the first conveying motor, the output end of the first conveying frame is provided with a first output positioning sensor, and the input end is provided with a first input positioning sensor; The feeding mechanism comprises a feeding slide rail, a feeding frame, a feeding screw rod, a feeding base, a feeding motor, a second conveying frame, a second conveying roller group and a second conveying motor, a feeding base plate is provided on the frame, the feeding slide rail and the feeding base are fixedly mounted on the feeding base plate, the feeding frame is provided with a feeding slide seat slidably arranged on the feeding slide rail, the feeding screw rod is rotatably arranged on the feeding base and is driven by the feeding motor, the feeding frame cooperates with the feeding screw rod, the second conveying frame is fixed on the feeding frame, the second conveying roller group is rotatably arranged on the second conveying frame and is driven by the second conveying motor, the second conveying roller group cooperates with the first conveying roller group, the feeding frame is provided with a second mounting block, the second mounting block is provided with a second mounting slot, a second positioning sensor is provided in the second mounting slot, a feeding stroke slide rail and a feeding stroke switch slidably arranged on the feeding stroke slide rail are fixedly mounted on the feeding base plate.

3. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: The output mechanism includes a third conveying frame, a third conveying roller group and a third conveying motor. The third conveying frame is fixed on the frame. The third conveying roller group is rotatably arranged on the third conveying frame and driven by the third conveying motor. The output end of the third conveying frame is provided with a third output positioning sensor, and the input end is provided with a third input positioning sensor. The unloading mechanism comprises an unloading slide rail, an unloading frame, an unloading screw rod, an unloading base, an unloading motor, a fourth conveying frame, a fourth conveying roller group and a fourth conveying motor, the frame is provided with an unloading base plate, the unloading slide rail and the unloading base are fixedly arranged on the unloading base plate, the unloading frame is provided with an unloading slide seat slidably arranged on the unloading slide rail, the unloading screw rod is rotatably arranged on the unloading base and is driven by the unloading motor, the unloading frame cooperates with the unloading screw rod, the fourth conveying frame is fixed on the unloading frame, the fourth conveying roller group is rotatably arranged on the fourth conveying frame and is driven by the fourth conveying motor, the fourth conveying roller group cooperates with the third conveying roller group, the unloading frame is provided with a fourth mounting block, the fourth mounting block is provided with a fourth mounting slot, the fourth mounting slot is provided with a fourth positioning sensor, and a unloading stroke slide rail and an unloading stroke switch slidably arranged on the unloading stroke slide rail are fixedly arranged on the unloading base plate.

4. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: The visual positioning mechanism includes a lens mounting plate, a CCD camera and an image processing module. The lens mounting plate is arranged on the frame for mounting the CCD camera. The CCD camera is used to collect image information in the material box on the feeding mechanism and send it to the image processing module to obtain the position information of the LCD screen to be tested in the material box.

5. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: The mechanical positioning mechanism includes a positioning rail, a positioning base, a positioning slide, a positioning screw and a positioning clamping rod. The positioning rail is arranged on the unloading mechanism, and the positioning base is fixedly provided at both ends. Two groups of positioning slides with opposite sliding directions are provided on the positioning rail. The positioning screw is rotatably arranged on the positioning base, and a rotating helm and a rotating lock for locking the rotating helm are provided at one end. The positioning screw cooperates with the positioning slide, and the positioning clamping rod is arranged on the positioning slide for positioning positions on both sides of the position of the qualified LCD screen empty material box.

6. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: The first vacuum suction device comprises a first suction frame and a first movable suction nozzle, wherein the first suction frame is provided with a first adjustment slot, a first sliding bottom plate is slidably provided on the first adjustment slot, the first sliding bottom plate is provided with a first threaded column passing through the first adjustment slot, the first threaded column cooperates with a first nut to fix the first sliding bottom plate on the first adjustment slot, and the first movable suction nozzle is arranged on the first sliding bottom plate; The second vacuum suction device includes a second suction frame, a second fixed suction nozzle and a second movable suction nozzle. The second fixed suction nozzle is provided at the center position of the second suction frame. The second suction frame is provided with a second adjusting groove. A second sliding bottom plate is slidably provided on the second adjusting groove. The second sliding bottom plate is provided with a second threaded column passing through the second adjusting groove. The second threaded column cooperates with a second nut to fix the second sliding bottom plate on the second adjusting groove. The second movable suction nozzle is arranged on the second sliding bottom plate.

7. The AOI automatic optical inspection loading and unloading machine according to claim 1, characterized in that: It also includes a static electricity removal device arranged above the input mechanism, the static electricity removal device includes a fixed base, a sliding base, a mounting frame, a connecting frame and an ion blower, the fixed base is arranged on the frame, blocks are provided on both sides of the fixed base, the blocks and the fixed base cooperate to form a slot for the sliding base to slide, the sliding base is provided with a locking slot, the locking slot is provided with a sliding lock for locking the sliding base on the fixed base, one end of the sliding base is connected to the mounting frame, the connecting frames are provided on both sides of the mounting frame, the connecting frame is provided with a rotating port, connecting arms are provided on both sides of the ion blower, the connecting arms are provided with a rotating column for rotatably connected to the rotating port, and the ion blower is provided with multiple air outlets and air inlet pipes.

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