An AOI testing machine for finished product classification transfer

Abstract

The application relates to an AOI testing machine for finished product classification transfer, which comprises a rack, a total transfer starting area, a total transfer ending area, an OK unloading area and an NG unloading area, the OK unloading area and the NG unloading area being respectively located at two adjacent positions on the circumferential side of the total transfer ending area; a testing unloading mechanical arm arranged on the rack, the testing unloading mechanical arm being used for transferring workpieces to the total transfer starting area; a transfer and carrying assembly arranged on the rack, the transfer and carrying assembly being used for moving the workpieces from the total transfer starting area to the total transfer ending area; a classification unloading mechanical arm arranged on the rack, the classification unloading mechanical arm being used for transferring qualified workpieces to the OK unloading area or transferring unqualified workpieces to the NG unloading area. The application has the effect of improving the unloading efficiency of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen detection equipment, and in particular to an AOI test machine for finished product classification and transfer. BACKGROUND

[0002] AOI is the full name of automatic optical inspection, which is a device based on optical principles to detect common defects encountered in production. AOI is a new testing technology that has emerged and developed rapidly, and many manufacturers have introduced AOI test equipment. When detecting display screens automatically, the machine automatically scans, collects images, compares the tested solder joints with the qualified parameters in the database, detects defects through image processing, and marks the qualified products and unqualified products through automatic marking.

[0003] In related technologies, the AOI test machine for finished product classification and transfer includes a rack, a test unloading manipulator, an OK unloading mechanism, and an NG unloading mechanism. The test unloading manipulator is movably arranged on the rack and can move along the X, Y, and Z directions. After the workpiece is tested, the test unloading manipulator is used to transfer the workpiece out of the detection area. The OK unloading mechanism is arranged on the rack, and the test unloading manipulator transfers the qualified products to the OK unloading mechanism. The NG unloading mechanism is arranged on the rack, and the test unloading manipulator transfers the unqualified products to the NG unloading mechanism.

[0004] In the related technologies described above, the workpiece is transferred by a test unloading manipulator, which has a long travel time for taking-out, placing, and returning, thereby reducing the efficiency of the unloading work. SUMMARY

[0005] In order to improve the unloading efficiency of the AOI test machine, the present application provides an AOI test machine for finished product classification and transfer.

[0006] The AOI test machine for finished product classification and transfer provided by the present application adopts the following technical solution:

[0007] An AOI test machine for finished product classification and transfer includes:

[0008] A rack is provided with a total transfer starting area, a total transfer termination area, an OK unloading area, and an NG unloading area. The OK unloading area and the NG unloading area are respectively located at two adjacent positions on the side of the total transfer termination area.

[0009] A test unloading manipulator is arranged on the rack, and the test unloading manipulator is used to transfer the workpiece to the total transfer starting area.

[0010] A transfer assembly is arranged on the frame and used to move the workpieces from the total transfer starting area to the total transfer ending area.

[0011] A sorting and unloading manipulator is arranged on the frame and used to transfer the qualified workpieces to the OK unloading area or transfer the unqualified workpieces to the NG unloading area.

[0012] By using the above technical solutions, when the workpieces are tested, the workpieces are first moved to the total transfer starting area by the testing and unloading manipulator, then moved from the total transfer starting area to the total transfer ending area by the transfer assembly, and then the qualified workpieces are transferred to the OK unloading area or the unqualified workpieces are transferred to the NG unloading area by the sorting and unloading manipulator, so as to achieve the purpose of sorting and unloading the finished products. Compared with the method of directly transferring the workpieces to the OK unloading area or the NG unloading area by arranging only one manipulator, the movement path of the workpieces is completed by multiple elements, so that the testing and unloading manipulator can take the next tested workpiece during the process of transferring the workpieces to the total transfer ending area by the transfer assembly. Similarly, the transfer assembly can go back to the total transfer starting area to take the next workpiece during the process of transferring the workpieces by the sorting and unloading manipulator. Therefore, more workpieces can be transferred in the same time, thereby helping to improve the unloading efficiency of the equipment.

[0013] Preferably, the testing and unloading manipulator comprises a Y-direction driving assembly, a Z-direction driving assembly and a vacuum suction assembly. The Y-direction driving assembly is arranged on the frame, and the driving direction of the Y-direction driving assembly is perpendicular to the direction of the line connecting the total transfer starting area and the total transfer ending area. The Z-direction driving assembly is connected with the Y-direction driving assembly. The vacuum suction assembly is connected with the Z-direction driving assembly, and the vacuum suction assembly can move in the Y-direction and the Z-direction. The vacuum suction assembly can take two workpieces at the same time. The sorting and unloading manipulator can also take two workpieces at the same time.

[0014] By using the above technical solutions, on the one hand, under the action of the Y-direction driving assembly and the Z-direction driving assembly, the vacuum suction assembly can transfer the workpieces to the total transfer starting area, thereby realizing the basic function of the testing and unloading manipulator. At the same time, the way of taking the workpieces by vacuum suction can reduce the influence on the workpieces. On the other hand, the vacuum suction assembly and the sorting and unloading manipulator can take two workpieces at the same time. When both of the workpieces are qualified or unqualified, the workpieces can be directly transferred to the OK unloading area or the NG unloading area. When one workpiece is qualified and the other is unqualified, the sorting and unloading manipulator only needs to sequentially send the workpieces into the OK unloading area and the NG unloading area, thereby improving the unloading efficiency of the equipment in different situations.

[0015] Preferably, the transfer and carrying assembly comprises X-direction driving assemblies arranged on the rack, and the driving direction of the X-direction driving assemblies is parallel to the direction of the line connecting the total transfer starting area and the total transfer ending area; the vacuum pallets are connected with the X-direction driving assemblies, and the upper surface of the vacuum pallets is used for adsorbing workpieces.

[0016] By adopting the technical scheme, on the one hand, under the action of the X-direction driving assemblies, the vacuum pallets can transfer the workpieces from the total transfer starting area to the total transfer ending area, thereby realizing the basic function of the transfer and carrying assembly; on the other hand, the cooperation of the vacuum pallets and the vacuum adsorption assembly can also make the transfer between the test and blanking manipulator and the transfer and carrying assembly more smooth.

[0017] Preferably, the X-direction driving assemblies are arranged in parallel in four; the vacuum pallets are arranged in four, and one vacuum pallet is connected with one X-direction driving assembly; the rack is provided with a feeding path area, an OK path area and an NG path area in the area where the vacuum pallets are located; the transfer and carrying assembly further comprises four path transfer assemblies, one path transfer assembly is connected with one X-direction driving assembly and one vacuum pallet, and the path transfer assembly is used for moving the vacuum pallet to the feeding path area, the OK path area or the NG path area.

[0018] By adopting the technical scheme, since the X-direction driving assemblies and the vacuum pallets are arranged in four, and the path transfer assemblies are also arranged, when it is needed to transfer the workpieces to the transfer and carrying assembly, the four vacuum pallets are first moved to the total transfer starting area, and then the four vacuum pallets are moved to the feeding path area by the path transfer assemblies; after the four vacuum pallets are loaded with workpieces, the vacuum pallets loaded with qualified workpieces or unqualified workpieces are moved to the OK path area or the NG path area by the path transfer assemblies; then the four vacuum pallets are moved to the total transfer ending area by the X-direction driving assemblies; finally, the workpieces on the OK path area are transferred to the OK blanking area by the classified blanking manipulator, and the workpieces on the NG path area are transferred to the NG blanking area, so that the total travel path of the classified blanking manipulator for transferring the workpieces is simpler, thereby the working time of the classified blanking manipulator for transferring the workpieces can be saved, and the blanking efficiency of the equipment can be further improved.

[0019] Preferably, the OK path area coincides with the movement path of one of the vacuum pallets; the NG path area coincides with the movement path of another vacuum pallet; and the feeding path area coincides with one of the OK path area and the NG path area.

[0020] By adopting the technical scheme, on one hand, the stroke of each vacuum plate when transferring to the OK path area or the NG path area is greatly reduced, so that the size of the path transfer assembly can be reduced; on the other hand, the vacuum plate on the OK path area or the NG path area only needs to move in one direction to perform path transfer, and the directions of the remaining two vacuum plates when transferring to the OK path area or the NG path area are consistent, so that the structure of the path transfer assembly can be simplified.

[0021] Preferably, the path transfer assembly comprises:

[0022] A mounting seat connected with the X-direction driving assembly, the mounting seat being capable of moving along the X direction;

[0023] A multi-stage telescopic cylinder arranged on the mounting seat, a piston rod of the multi-stage telescopic cylinder being connected with the vacuum plate;

[0024] A gas circuit connector connected with the vacuum plate, the gas circuit connector being in communication with an internal passage of the vacuum plate;

[0025] A telescopic communication pipe, one end of which is connected with the mounting seat and the other end of which is in communication with the gas circuit connector;

[0026] A gas inlet adapter pipe, which is in an L-shaped bending shape, one end of the gas inlet adapter pipe being in communication with the end of the telescopic communication pipe away from the gas circuit connector, and the other end of the gas inlet adapter pipe facing downward.

[0027] By adopting the technical scheme, when the vacuum plate needs to be switched to the OK path area or the NG path area, the piston rod of the multi-stage telescopic cylinder only needs to be extended by a corresponding length, and in this process, the gas circuit connector and the telescopic communication pipe can also be used to maintain the adsorption performance of the vacuum plate, so that the workpiece can be stably adsorbed on the vacuum plate. In addition, the arrangement of the gas inlet adapter pipe can prevent the pipeline structures connected with the four vacuum plates from affecting each other when the four vacuum plates are respectively in the OK path area or the NG path area, so that the adsorption performance of the vacuum plate in different positions can be maintained.

[0028] Preferably, the OK path area coincides with the path of one of the two middle vacuum plates, and the NG path area coincides with the path of the other of the two middle vacuum plates.

[0029] By adopting the technical scheme, the maximum value of the path transfer stroke of the four vacuum plates can be reduced, and the sum of the path transfer strokes of the four vacuum plates can also be reduced, so that the structural complexity of the equipment can be simplified, and the manufacturing cost of the equipment can be reduced.

[0030] Preferably, the sorting and discharging manipulator comprises a first transfer driving assembly, a normal product taking assembly, a second transfer driving assembly and a substandard product taking assembly, the first transfer driving assembly is arranged on the frame, the driving direction of the first transfer driving assembly is parallel to the direction of the line connecting the OK discharging area and the total transfer termination area; the normal product taking assembly is connected with the first transfer driving assembly; the second transfer driving assembly is arranged on the frame, the driving direction of the second transfer driving assembly is parallel to the direction of the line connecting the total transfer termination area and the NG discharging area; the substandard product taking assembly is connected with the second transfer driving assembly.

[0031] By adopting the above technical scheme, when the four vacuum pallets move to the total transfer termination area, the qualified workpieces are on the OK path area and the unqualified workpieces are on the NG path area, the first transfer driving assembly and the normal product taking assembly can be used to transfer the qualified workpieces to the OK discharging area, and the second transfer driving assembly and the substandard product taking assembly can be used to transfer the unqualified workpieces to the NG discharging area, so that the working efficiency of the sorting and discharging manipulator can be improved.

[0032] Preferably, two sorting and discharging manipulators are arranged, the two sorting and discharging manipulators can send the qualified workpieces to the OK discharging area or send the unqualified workpieces to the NG discharging area; when there are three qualified workpieces and one unqualified workpiece or one qualified workpiece and three unqualified workpieces on the four vacuum pallets, one of the sorting and discharging manipulators is used to transfer two qualified workpieces or unqualified workpieces first, and the other sorting and discharging manipulator is used to transfer the remaining one qualified workpiece and one unqualified workpiece.

[0033] By adopting the above technical scheme, because two sorting and discharging manipulators are arranged, one can adapt to four qualified workpieces or unqualified workpieces, the other can adapt to two qualified workpieces and two unqualified workpieces, and in the case of three qualified workpieces and one unqualified workpiece or one qualified workpiece and three unqualified workpieces, the sorting and discharging work of the workpieces can be completed with the maximum efficiency, so that the sorting and discharging efficiency of the equipment for the qualified workpieces and the unqualified workpieces can be greatly improved.

[0034] In summary, the present application has at least one of the following beneficial technical effects:

[0035] 1. By testing the setting of the test unloading manipulator, the transfer carrying assembly and the classified unloading manipulator, the movement path of the workpiece is completed by multiple elements, then in the process of transferring the workpiece to the total transfer termination area by the transfer carrying assembly, the test unloading manipulator can take the next test finished workpiece, and similarly in the process of transferring the workpiece by the classified unloading manipulator, the transfer carrying assembly can go back to the total transfer starting area to take the next workpiece, so that more workpieces can be transferred in the same time, thereby helping to improve the unloading efficiency of the equipment.

[0036] 2. By setting four X-direction drive assemblies and vacuum support plates, and the path transfer assembly, the classified unloading manipulator can transfer more simply each time, thereby saving the working time of the classified unloading manipulator for transferring, and further improving the unloading efficiency of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is the structural schematic diagram of the AOI test machine for finished product classification transfer in the embodiment 1 of the present application.

[0038] Figure 2 is the schematic diagram for embodying the transfer mode of the workpiece in the embodiment 1 of the present application.

[0039] Figure 3 is the structural schematic diagram of the path transfer assembly in the embodiment 1 of the present application.

[0040] Figure 4 is the structural schematic diagram of the classified unloading manipulator in the embodiment 2 of the present application.

[0041] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 11, total transfer starting area; 12, total transfer termination area; 13, OK unloading area; 14, NG unloading area; 15, feeding path area; 16, OK path area; 17, NG path area; 2, test unloading manipulator; 21, Y-direction drive assembly; 22, Z-direction drive assembly; 23, vacuum suction assembly; 3, transfer carrying assembly; 31, X-direction drive assembly; 32, vacuum support plate; 33, path transfer assembly; 331, mounting seat; 332, multi-stage telescopic cylinder; 333, gas connection; 334, telescopic communication pipe; 335, gas inlet adapter pipe; 4, classified unloading manipulator; 41, first transfer drive assembly; 42, genuine product taking assembly; 43, second transfer drive assembly; 44, defective product taking assembly. DETAILED DESCRIPTION

[0042] The following will be described in detail in combination with the drawings Figures 1-4 The present application will be further described in detail.

[0043] The present application discloses an AOI test machine for finished product classification transfer.

[0044] Embodiment 1

[0045] Referring to Figure 1 and Figure 2 , the AOI test machine for finished product classification transfer includes a rack 1, a test unloading manipulator 2, a transfer and carrying assembly 3 and a classification unloading manipulator 4. Specifically, the rack 1 is provided with specific components for correspondence, so the rack 1 is formed with a total transfer starting area 11, a total transfer termination area 12, an OK unloading area 13 and an NG unloading area 14. The connecting line direction between the total transfer starting area 11 and the total transfer termination area 12 is parallel to the X direction, the connecting line direction between the total transfer termination area 12 and the OK unloading area 13 is parallel to the Y direction, the connecting line direction between the total transfer termination area 12 and the NG unloading area 14 is parallel to the X direction, and the OK unloading area 13 and the NG unloading area 14 are respectively located at the adjacent two positions of the total transfer termination area 12 on the circumferential side.

[0046] Referring to Figure 1 and Figure 2 , the test unloading manipulator 2 is arranged on the rack 1 and is used to transfer the workpiece to the total transfer starting area 11; the transfer and carrying assembly 3 is arranged on the rack 1 and is used to move the workpiece from the total transfer starting area 11 to the total transfer termination area 12; the classification unloading manipulator 4 is arranged on the rack 1 and is used to transfer the qualified workpiece to the OK unloading area 13 or transfer the unqualified workpiece to the NG unloading area 14, so the movement path of the workpiece is completed by multiple components. During the process that the transfer and carrying assembly 3 transfers the workpiece to the total transfer termination area 12, the test unloading manipulator 2 can take the next tested workpiece, and similarly, during the process that the classification unloading manipulator 4 transfers the workpiece, the transfer and carrying assembly 3 can go back to the total transfer starting area 11 to take the next workpiece, so more workpieces can be transferred in the same time, thereby helping to improve the unloading efficiency of the equipment.

[0047] Referring to Figure 1 and Figure 2, the test unloading manipulator 2 comprises a Y-direction driving assembly 21, a Z-direction driving assembly 22 and a vacuum adsorption assembly 23, wherein the Y-direction driving assembly 21 is arranged on the rack 1, the structure of the Y-direction driving assembly 21 is a screw sliding table, and the driving direction of the Y-direction driving assembly 21 is perpendicular to the direction of the line between the total transfer starting area 11 and the total transfer ending area 12; the Z-direction driving assembly 22 is connected with the sliding table of the Y-direction driving assembly 21, and the structure of the Z-direction driving assembly 22 is also a screw sliding table; the vacuum adsorption assembly 23 is connected with the sliding table of the Z-direction driving assembly 22, so that the vacuum adsorption assembly 23 can move along the Y-direction and the Z-direction to realize the transfer of the workpieces to the total transfer starting area 11, and in this embodiment, the vacuum adsorption assembly 23 can take two workpieces at a time, and the same is true for the sorting unloading manipulator 4, so as to improve the unloading efficiency of the equipment at different times.

[0048] With reference to Figure 2 and Figure 3 , the transfer conveying assembly 3 further comprises an X-direction driving assembly 31, a vacuum supporting plate 32 and a path transfer assembly 33, the X-direction driving assembly 31 is arranged on the rack 1, the structure of the X-direction driving assembly 31 is a screw sliding table, the driving direction of the X-direction driving assembly 31 is parallel to the direction of the line between the total transfer starting area 11 and the total transfer ending area 12, and the X-direction driving assembly 31 is arranged in parallel and at intervals.

[0049] With reference to Figure 2 and Figure 3 , in order to reduce the total time of the transfer of the four workpieces to the OK unloading area 13 and the NG unloading area 14 on the total transfer ending area 12, the qualified workpieces and the unqualified workpieces are classified and placed by the path transfer assembly 33, so that the rack 1 further forms a feeding path area 15, an OK path area 16 and an NG path area 17 in the area where the vacuum supporting plate 32 is located, specifically, the feeding path area 15 coincides with the path of one of the middle two vacuum supporting plates 32, the OK path area 16 coincides with the feeding path area 15, and the NG path area 17 coincides with the path of the other of the middle two vacuum supporting plates 32, so as to form the standard of the path transfer assembly 33 to the qualified workpieces or the unqualified workpieces to the specified position.

[0050] With reference to Figure 2 and Figure 3, the path transfer assembly 33 is provided with four, one path transfer assembly 33 and one vacuum plate 32 is connected, specifically, the path transfer assembly 33 includes mounting seat 331, multi-stage telescopic cylinder 332, gas connection 333, telescopic communication pipe 334 and air inlet adapter pipe 335, mounting seat 331 fixedly connected to the slide of X direction driving assembly 31 is connected, as the installation basis of other elements;Multi-stage telescopic cylinder 332 is in the form of multi-stage cylinder, multi-stage telescopic cylinder 332 is fixedly connected on the mounting seat 331, and the piston rod of multi-stage telescopic cylinder 332 is connected with the vacuum plate 32, wherein the vacuum plate 32 on the OK path area 16 or NG path area 17, multi-stage telescopic cylinder 332 only needs to switch the vacuum plate 32 between OK path area 16 and NG path area 17, while the vacuum plate 32 on the OK path area 16 and the NG path area 17, multi-stage telescopic cylinder 332 needs to switch the vacuum plate 32 between OK path area 16, NG path area 17 and the position of X direction driving assembly 31 connected with itself.

[0051] Referring to Figure 2 and Figure 3 , when the workpiece moves to the total transfer termination area 12, the qualified workpiece will be located on the OK path area 16, and the unqualified workpiece will be located on the NG path area 17, then the classification and unloading manipulator 4 can transfer the qualified workpiece to the OK unloading area 13 and the unqualified workpiece to the NG unloading area 14, so that the total stroke path of the classification and unloading manipulator 4 is simpler, thereby saving the working time of the classification and unloading manipulator 4.

[0052] Referring to Figure 2 and Figure 3 , the gas connection 333 is connected with the vacuum plate 32, and the gas connection 333 is connected with the internal passage of the vacuum plate 32;Telescopic communication pipe 334 is in the form of bellows, one end of telescopic communication pipe 334 is connected with gas connection 333, and the other end is fixed on mounting seat 331, so that when the vacuum plate 32 switches between different positions of X direction driving assembly 31, the vacuum plate 32 can firmly adsorb the workpiece;Air inlet adapter pipe 335 is in the form of L-shaped bending, one end of air inlet adapter pipe 335 is connected with the end of telescopic communication pipe 334 away from gas connection 333, and the other end faces downward, so that the elements required for vacuum adsorption such as air pump are arranged below X direction driving assembly 31, then the pipeline structure connected with each vacuum plate 32 will not interfere with each other, thereby maintaining the adsorption performance of the vacuum plate 32 in different position states.

[0053] Referring to Figure 1 and Figure 2In the embodiment, the classification and unloading manipulator 4 is composed of XYZ three-axis sliding table and necessary elements such as vacuum adsorption element, and the classification and unloading manipulator 4 is provided with two, each of which can send qualified workpieces to the OK unloading area 13 or unqualified workpieces to the NG unloading area 14, but when there are three qualified workpieces and one unqualified workpiece or one qualified workpiece and three unqualified workpieces on the four vacuum supporting plates 32, one of the classification and unloading manipulators 4 sends two qualified workpieces to the OK unloading area 13 or two unqualified workpieces to the NG unloading area 14, and the other classification and unloading manipulator 4 sends the remaining one qualified workpiece and one unqualified workpiece to the OK unloading area 13 and the NG unloading area 14 in turn, so that the four workpieces can be transferred to the OK unloading area 13 or the NG unloading area 14 more quickly after the workpieces reach the total transfer termination area 12, thereby helping to improve the classification and unloading efficiency of the equipment.

[0054] The implementation principle of the AOI test machine for finished product classification and transfer according to Embodiment 1 is that after the workpieces are tested, the workpieces are first carried to the total transfer starting area 11 by the test and unloading manipulator 2, then moved from the total transfer starting area 11 to the total transfer termination area 12 by the transfer and carrying assembly 3, and then transferred to the OK unloading area 13 for qualified workpieces or the NG unloading area 14 for unqualified workpieces by the classification and unloading manipulator 4, so as to achieve the purpose of classifying and unloading finished products; compared with the mode of directly transferring workpieces to the OK unloading area 13 or the NG unloading area 14 by only providing one manipulator, in this design mode, the movement path of the workpieces is completed by multiple elements, so that in the process of transferring the workpieces to the total transfer termination area 12 by the transfer and carrying assembly 3, the test and unloading manipulator 2 can take the next tested workpiece, and similarly in the process of transferring the workpieces by the classification and unloading manipulator 4, the transfer and carrying assembly 3 can go back to the total transfer starting area 11 to take the next workpiece, so that more workpieces can be transferred in the same time, thereby helping to improve the unloading efficiency of the equipment.

[0055] Embodiment 2

[0056] Reference Figure 2 and Figure 4Different from the embodiment 1, the sorting and unloading manipulator 4 comprises a first transfer driving assembly 41, a normal product taking assembly 42, a second transfer driving assembly 43 and a substandard product taking assembly 44. Specifically, the first transfer driving assembly 41 is arranged on the rack 1, and the structure of the first transfer driving assembly 41 is a YZ two-axis sliding table, so that the driving direction of the first transfer driving assembly 41 is parallel to the connecting direction between the OK unloading area 13 and the total transfer termination area 12.

[0057] With reference to Figure 2 and Figure 4 , the second transfer driving assembly 43 is arranged on the rack 1, and the structure of the second transfer driving assembly 43 is an XZ two-axis sliding table, so that the driving direction of the second transfer driving assembly 43 is parallel to the connecting direction between the NG unloading area 14 and the total transfer termination area 12; the substandard product taking assembly 44 is connected to the Z direction sliding table of the second transfer driving assembly 43, and the substandard product taking assembly 44 takes the unqualified workpieces by vacuum adsorption, and at the same time, the substandard product taking assembly 44 takes at most two unqualified workpieces, so that the qualified workpieces and the qualified workpieces can start the transfer work at the same time, thereby improving the working efficiency of the sorting and unloading manipulator 4.

[0058] The above are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An AOI testing machine for finished product classification and transfer, characterized in that: include: The frame is provided with a total transfer start area, a total transfer end area, an OK unloading area and an NG unloading area. The OK unloading area and the NG unloading area are respectively located at two adjacent positions on the periphery of the total transfer end area. A test unloading robot is mounted on the frame and is used to transfer workpieces to the total transfer starting area. A transfer and handling assembly is mounted on the frame, and the transfer and handling assembly is used to move the workpiece from the total transfer start area to the total transfer end area; A sorting and unloading robot is mounted on the frame. The sorting and unloading robot is used to transfer qualified workpieces to the OK unloading area or unqualified workpieces to the NG unloading area. The transfer and handling assembly includes an X-axis drive assembly and a vacuum tray. The X-axis drive assembly is mounted on the frame, and its driving direction is parallel to the line connecting the total transfer start area and the total transfer end area. The vacuum tray is connected to the X-axis drive assembly, and its upper surface is used to adsorb workpieces. Four X-axis drive components are arranged in parallel; four vacuum trays are provided, with one vacuum tray connected to one X-axis drive component; the frame is provided with a loading path area, an OK path area, and an NG path area in the area where the vacuum tray is located; the transfer and handling assembly also includes four path transfer components, with one path transfer component connected to one X-axis drive component and one vacuum tray, and the path transfer component is used to move the vacuum tray to the loading path area, the OK path area, or the NG path area; The path transfer assembly includes a mounting base connected to the X-axis drive assembly, the mounting base being movable in the X-axis direction; a multi-stage telescopic cylinder mounted on the mounting base, the piston rod of the multi-stage telescopic cylinder being connected to the vacuum support plate; an air passage connector connected to the vacuum support plate, the air passage connector communicating with the internal channel of the vacuum support plate; a telescopic connecting pipe, one end connected to the mounting base and the other end communicating with the air passage connector; and an air intake adapter pipe, which is L-shaped, one end of the air intake adapter pipe communicating with the end of the telescopic connecting pipe away from the air passage connector, and the other end facing downwards. When it is necessary to switch the vacuum tray to the OK path area or the NG path area, simply extend the piston rod of the multi-stage telescopic cylinder to the corresponding length.

2. The AOI testing machine for finished product classification and transfer according to claim 1, characterized in that: The OK path area coincides with the movement path of one of the vacuum pallets; the NG path area coincides with the movement path of the other vacuum pallet; the loading path area coincides with one of the OK path area and the NG path area.

3. The AOI testing machine for finished product classification and transfer according to claim 2, characterized in that: The OK path area coincides with the path of one of the two middle vacuum trays; the NG path area coincides with the path of the other of the two middle vacuum trays.

4. The AOI testing machine for finished product classification and transfer according to claim 1, characterized in that: The sorting and unloading robot includes a first transfer drive component, a genuine product picking component, a second transfer drive component, and a defective product picking component. The first transfer drive component is mounted on the frame, and its driving direction is parallel to the line connecting the OK unloading area and the total transfer termination area. The genuine product picking component is connected to the first transfer drive component. The second transfer drive assembly is mounted on the frame, and the driving direction of the second transfer drive assembly is parallel to the line connecting the total transfer termination area and the NG unloading area; the defective product picking assembly is connected to the second transfer drive assembly.

5. The AOI testing machine for finished product classification and transfer according to claim 1, characterized in that: There are two sorting and unloading robots. Both robots can send qualified workpieces to the OK unloading area or unqualified workpieces to the NG unloading area. When there are three qualified workpieces and one unqualified workpiece or one qualified workpiece and three unqualified workpieces on the four vacuum pallets, one of the sorting and unloading robots is first used to transfer two qualified workpieces or unqualified workpieces, and the other robot is then used to transfer the remaining one qualified workpiece and one unqualified workpiece.

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