Automatic online operation device for overhauling multiple VRSs

Abstract

The invention discloses a multi-VRS maintenance automatic line connection operation device, and relates to the technical field of printed circuit board production, the multi-VRS maintenance automatic line connection operation device comprises a screening unit, one side of the screening unit is connected with a DES production line, and a classified placement unit is arranged on one side of the screening unit and can realize classified placement of qualified circuit boards and scrapped circuit boards; the middle-layer maintenance unit is arranged between the classified placement unit and the screening unit, the upper-layer maintenance unit is arranged between the classified placement unit and the screening unit, and the liftable sorting unit is arranged among the screening unit, the middle-layer maintenance unit and the upper-layer maintenance unit; the first sorting manipulator is arranged among the classified placement unit, the middle-layer maintenance unit and the upper-layer maintenance unit; an automatic connection device integrating one AOI and two VRSs realizes capacity multiplication, space saving and full-process automation through three-dimensional layout and intelligent sorting, so that the problems of insufficient VRS capacity, low circulation efficiency and high cost in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printed circuit board production, in particular to a multi-VRS maintenance automatic connection operation device. BACKGROUND

[0002] After the circuit board line is completed, the surface is scanned by an automatic optical detection machine to detect defects such as size, copper surface, open circuit, line width and line spacing, and transmit the defective data to a VRS (visual repair system) maintenance machine for repair to ensure normal electrical connection of the circuit board and reduce scrap.

[0003] In circuit board manufacturing, the automatic optical detection machine and the VRS maintenance machine usually come from different equipment manufacturers, and the automatic flow of the circuit board is realized by relying on AGV trolley transportation between the two. However, the transportation time of the AGV trolley is long, and the calibration needs to be re-calibrated when switching between multiple types of materials, resulting in low transportation efficiency, and the maintenance speed of a single VRS is much lower than the detection speed of a single AOI, which causes the VRS to become a bottleneck of the line detection process, seriously restricting the overall production efficiency. To solve the above problems, the AGV transportation and the VRS maintenance machine are usually increased to improve the efficiency of the post-process and break through the production capacity bottleneck of the line detection process, which requires a large amount of manpower, material resources and financial resources, thereby increasing the manufacturing cost. SUMMARY

[0004] The purpose of the present application is to provide a multi-VRS maintenance automatic connection operation device, which integrates one AOI (automatic optical detection) and two VRS (visual repair system) automatic connection devices, realizes capacity doubling, space saving and full-process automation through three-dimensional layout and intelligent sorting, thereby solving the problems of insufficient VRS production capacity, low flow efficiency and high cost in the prior art.

[0005] The above-mentioned optimized structure of the present application is realized by the following technical scheme: a multi-VRS maintenance automatic connection operation device, comprising a screening unit, one side of the screening unit being connected with a DES production line; A classified placement unit is arranged on one side of the screening unit, which can realize the classified placement of qualified circuit boards and scrap circuit boards; A shunt conveying unit is connected with the screening unit; A middle layer maintenance unit is arranged between the classified placement unit and the shunt conveying unit; An upper layer maintenance unit is arranged between the classified placement unit and the shunt conveying unit; A liftable sorting unit is arranged between the shunting conveying unit, the middle-layer maintenance unit and the upper-layer maintenance unit, and can realize the one-by-one conveying of the to-be-maintained boards in the shunting conveying unit to the middle-layer maintenance unit and the upper-layer maintenance unit; A first sorting manipulator is arranged between the classified placement unit, the middle-layer maintenance unit and the upper-layer maintenance unit, and can realize the classified placement of the qualified circuit boards and the scrap circuit boards in the middle-layer maintenance unit and the upper-layer maintenance unit.

[0006] In some embodiments, the screening unit comprises an automatic optical detection structure connected with the DES production line; A temporary storage structure is connected with the automatic optical detection structure; A total circuit board conveying structure is connected with the temporary storage structure.

[0007] In some embodiments, the shunting conveying unit comprises a second sorting manipulator arranged between the total circuit board conveying structure and the liftable sorting unit; A lower-layer to-be-maintained board conveying structure is arranged between the second sorting manipulator and the liftable sorting unit; A lower-layer qualified board conveying structure is arranged at one end of the second sorting manipulator and connected with the classified placement unit.

[0008] In some embodiments, the shunting conveying unit further comprises a lower-layer abnormal board conveying structure arranged at the other end of the second sorting manipulator.

[0009] In some embodiments, the middle-layer maintenance unit comprises a middle-layer circuit board conveying structure arranged above the lower-layer qualified board conveying structure and connected with the liftable sorting unit; A first VRS maintenance machine is vertically arranged at the end of the middle-layer circuit board conveying structure; A middle-layer board collecting conveying structure is vertically arranged at the end of the first VRS maintenance machine.

[0010] In some embodiments, the upper-layer maintenance unit comprises an upper-layer circuit board conveying structure arranged above the other end of the second sorting manipulator; A second VRS maintenance machine is vertically arranged at the end of the upper-layer circuit board conveying structure; An upper plate receiving and conveying structure vertically arranged at the end of the second VRS maintenance machine.

[0011] In some embodiments, a lifting structure is further included, which is arranged between the middle layer circuit board conveying structure and the feeding port of the first VRS maintenance machine, and between the upper layer circuit board conveying structure and the feeding port of the second VRS maintenance machine.

[0012] In some embodiments, a turnover unit is further included, which is arranged at the end of the middle layer plate receiving and conveying structure and the upper layer plate receiving and conveying structure.

[0013] In some embodiments, the classified placement unit includes a qualified plate receiving area connected with the end of the lower layer qualified plate conveying structure. A scrap plate receiving area is arranged on the side of the first sorting mechanical hand away from the screening unit.

[0014] In some embodiments, the liftable sorting unit includes an up-down conveying structure arranged above the lower layer plate to be maintained conveying structure. A left-right conveying structure is arranged on the up-down conveying structure. A circuit board suction structure is arranged on the left-right conveying structure.

[0015] The one or more technical solutions in the embodiments of the present application have at least the following technical effects or advantages: (1) The present application adopts two VRSs for parallel maintenance, realizes a parallel architecture of one AOI corresponding to two VRSs, improves the maintenance processing speed of the circuit board, improves the matching degree with the AOI detection speed, eliminates the process bottleneck, solves the problem of insufficient production capacity of the traditional single VRS, and reduces the investment of AGV car and the investment cost.

[0016] (2) The present application adopts a three-layer vertical layout of “upper, middle and lower”, and through vertical turning design, the VRS maintenance machine and the conveying structure are 90°, further compressing the equipment spacing, space intensive and efficient, small occupation area, and the conveying section is multi-dimensional and three-dimensional, which can achieve the effect of simultaneous conveying, simultaneous operation and simultaneous plate receiving, and improve the manufacturing efficiency.

[0017] (3) From the DES output to the final plate receiving, the whole process is without manual intervention, and the plate conveying, sorting and turnover are completed by mechanical structure, avoiding damage during handling. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 The structural schematic diagram of the present application.

[0020] In the figure: 1, screening unit; 11, automatic optical detection structure; 12, temporary storage structure; 13, general circuit board conveying structure; 2, classified placement unit; 21, qualified board receiving area; 22, scrap board receiving area; 3, middle layer maintenance unit; 31, middle layer circuit board conveying structure; 32, first VRS maintenance machine; 33, middle layer board receiving conveying structure; 4, upper layer maintenance unit; 41, upper layer circuit board conveying structure; 42, second VRS maintenance machine; 43, upper layer board receiving conveying structure; 5, liftable sorting unit; 6, first sorting mechanical hand; 7, lifting structure; 8, turning unit; 9, shunt conveying unit; 91, second sorting mechanical hand; 92, lower layer board to be maintained conveying structure; 93, lower layer qualified board conveying structure; 94, lower layer abnormal board conveying structure. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0023] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Reference Figure 1 A multi-station VRS maintenance automatic connection operation device, comprising a screening unit 1, a classification and placement unit 2, a middle layer maintenance unit 3, an upper layer maintenance unit 4, a liftable sorting unit 5, a first sorting mechanical hand 6, and a shunt conveying unit 9. The screening unit 1 is connected with a DES production line on one side, and can detect the circuit board flowing out of the DES production line. The classification and placement unit 2 is arranged on one side of the screening unit 1, and can realize the classification and placement of qualified circuit boards and scrapped circuit boards, so as to realize the different placement of different circuit boards and facilitate the subsequent processing of the circuit boards. The shunt conveying unit 9 is connected with the discharge port of the screening unit 1, and can realize the shunt conveying of the circuit board. The middle layer maintenance unit 3 is arranged between the classification and placement unit 2 and the shunt conveying unit 9, and can be the first maintenance process of the circuit board to be maintained. The upper layer maintenance unit 4 is arranged between the classification and placement unit 2 and the shunt conveying unit 9, and can be the second maintenance process of the circuit board to be maintained. The upper layer maintenance unit 4 is arranged in a staggered manner with the middle layer maintenance unit 3, which can improve the space layout and reduce the occupied space. The liftable sorting unit 5 is arranged between the screening unit 1, the middle layer maintenance unit 3 and the upper layer maintenance unit 4, and can realize the transportation of the circuit board to be maintained in the screening unit 1 to the middle layer maintenance unit 3 and the upper layer maintenance unit 4 one by one, so as to realize the automatic connection device of one AOI (automatic optical detection) and two VRS (visual repair system), reduce the speed difference between maintenance and detection, improve the production capacity, and the first sorting mechanical hand 6 is arranged between the classification and placement unit 2, the middle layer maintenance unit 3 and the upper layer maintenance unit 4. The first sorting mechanical hand 6 can be a six-axis servo robot, equipped with four groups of vacuum suction cups, which can suck the circuit board and move between the middle layer maintenance unit 3, the upper layer maintenance unit 4 and the classification and placement unit 2, so as to realize the classification and placement of qualified circuit boards and scrapped circuit boards in the middle layer maintenance unit 3 and the upper layer maintenance unit 4, realize the full automation of circuit board maintenance, and improve the efficiency.

[0026] In some embodiments, the screening unit 1 comprises an automatic optical detection structure 11, a temporary storage structure 12, and a total circuit board conveying structure 13. The automatic optical detection structure 11 can be a detection device integrated with a 20 million-pixel industrial camera, which can be connected to the discharge end of the DES production line through a conveying track, so as to scan the circuit board for defects and generate detection data with a two-dimensional code. The temporary storage structure 12 can be a stainless steel storage rack, which can be connected to the discharge port of the automatic optical detection structure 11 through a belt conveyor, for temporarily storing the detected circuit board to avoid congestion at the front end. The total circuit board conveying structure 13 can be a synchronous belt conveyor with a surface covered with anti-static rubber pads, which is connected to the discharge end of the temporary storage structure 12, and can convey the circuit board in the temporary storage structure 12 to the shunt conveying unit 9, so as to realize sorting and shunt conveying of different circuit boards (qualified boards, boards to be repaired, and abnormal boards).

[0027] In some embodiments, the shunt conveying unit 9 comprises a second sorting mechanical hand 91, a lower layer board-to-be-repaired conveying structure 92, and a lower layer qualified board conveying structure 93. The second sorting mechanical hand 91 can be a six-axis servo robot, which is arranged above the end of the total circuit board conveying structure 13 and is equipped with four groups of vacuum suction cups to realize grasping of the circuit board and is electrically connected to the automatic optical detection structure 11, so as to perform different operations according to the circuit board data information (qualified / to be repaired / abnormal) fed back by the automatic optical detection structure 11, and realize classified placement of the circuit board. The lower layer board-to-be-repaired conveying structure 92 can be a belt conveyor, which is arranged directly below the second sorting mechanical hand 91, the input end of which corresponds to the material taking range of the second sorting mechanical hand 91, and the output end of which extends to below the liftable sorting unit 5, so as to convey the board-to-be-repaired circuit board to the corresponding position of the liftable sorting unit 5. The lower layer qualified board conveying structure 93 can be a belt conveyor, which is arranged at one end of the second sorting mechanical hand 91, the input end of which corresponds to the material placing range of the second sorting mechanical hand 91, and the output end of which is connected to the qualified board receiving area 21 of the classified placement unit 2, so as to convey the qualified circuit board.

[0028] In some embodiments, the shunt conveying unit 9 further comprises a lower layer abnormal board conveying structure 94. The lower layer abnormal board conveying structure 94 can be a belt conveyor, which is arranged at the other side of the second sorting mechanical hand 91, the input end of which corresponds to the material placing range of the second sorting mechanical hand 91, and the end of which can be provided with a temporary storage rack with infrared counting, which automatically alarms when the number exceeds a set value, so as to avoid accumulation of abnormal boards and timely processing.

[0029] In some embodiments, the middle layer repair unit 3 comprises a middle layer circuit board conveying structure 31, a first VRS repair machine 32, and a middle layer circuit board receiving conveying structure 33. The middle layer circuit board conveying structure 31 can be a synchronous belt conveyor, which is arranged vertically above the lower layer qualified board conveying structure 93 and is connected to the discharge position of the liftable sorting unit 5. The first VRS repair machine 32 can be a repair device equipped with a display screen, which is arranged vertically at the end of the middle layer circuit board conveying structure 31 and is arranged at an angle of 90°. The first VRS repair machine 32 can display the defect coordinates and electric repair tools conveyed by the automatic optical detection structure 11, support manual marking of repair results, and be electrically connected to the first sorting mechanical arm 6 to feed back the information of the repaired circuit board to the first sorting mechanical arm 6 for classification and placement. The middle layer circuit board receiving conveying structure 33 can be a belt conveyor, which is arranged vertically at the discharge port of the first VRS repair machine 32 and is arranged at an angle of 90° opposite to the first VRS repair machine 32. The middle layer repair unit 3 has a Z-shaped structure, which can reduce the length in a single direction and improve the space utilization.

[0030] In some embodiments, the upper layer repair unit 4 comprises an upper layer circuit board conveying structure 41, a second VRS repair machine 42, and an upper layer circuit board receiving conveying structure 43. The upper layer circuit board conveying structure 41 can be a synchronous belt conveyor, which is arranged vertically above the lower layer abnormal board conveying structure 94 and is connected to the discharge position of the liftable sorting unit 5. The second VRS repair machine 42 has the same specifications as the first VRS repair machine 32, which is arranged vertically at the end of the upper layer circuit board conveying structure 41 and is arranged at an angle of 90° opposite to the first VRS repair machine 32. The second VRS repair machine 42 can display the defect coordinates and electric repair tools conveyed by the automatic optical detection structure 11, support manual marking of repair results, and be electrically connected to the first sorting mechanical arm 6 to feed back the information of the repaired circuit board to the first sorting mechanical arm 6 for classification and placement. The second VRS repair machine 42 can realize parallel repair with the first VRS repair machine 32, thereby improving the repair efficiency. The upper layer circuit board receiving conveying structure 43 can be a belt conveyor, which is arranged vertically at the discharge port of the second VRS repair machine 42 and is arranged at an angle of 90° opposite to the second VRS repair machine 42.

[0031] In some embodiments, two sets of lifting structures 7 are further included, which are respectively arranged between the middle layer circuit board conveying structure 31 and the feeding port of the first VRS maintenance machine 32, and between the upper layer circuit board conveying structure 41 and the discharging port of the second VRS maintenance machine 42. The lifting structure 7 can be a scissor lift, one set of lifting structures 7 can make reciprocating lifting motion between the conveying top surface of the middle layer circuit board conveying structure 31 and the feeding port of the first VRS maintenance machine 32, and one set of lifting structures 7 can make reciprocating lifting motion between the conveying top surface of the upper layer circuit board conveying structure 41 and the discharging port of the second VRS maintenance machine 42, so as to eliminate the height difference between the conveying top surface of the middle layer circuit board conveying structure 31 and the feeding port of the first VRS maintenance machine 32, and between the conveying top surface of the upper layer circuit board conveying structure 41 and the discharging port of the second VRS maintenance machine 42, so as to realize smooth transfer of the circuit board.

[0032] In some embodiments, a turnover unit 8 is further included, which is arranged at the end of the middle layer circuit board conveying structure 33 and the upper layer circuit board conveying structure 43. The turnover unit 8 can include a turnover structure and an identification structure. The turnover structure is arranged at the end of the middle layer circuit board conveying structure 33 and the upper layer circuit board conveying structure 43. The identification structure is arranged between the turnover structure and the middle layer circuit board conveying structure 33 or the upper layer circuit board conveying structure 43. The identification structure can be an industrial camera, which can automatically identify the front and back of the circuit board conveyed to the middle layer circuit board conveying structure 33 or the upper layer circuit board conveying structure 43, and feed back the information to the turnover structure, so as to judge whether to realize the turnover of the circuit board by the turnover structure, thereby automatically turning over the circuit board processed by the first VRS maintenance machine 32 and the second VRS maintenance machine 42 to the same direction as before the maintenance, so as to save the time of turnover of the maintenance personnel, and at the same time, avoid scratching or scratching the circuit board, facilitate large-size circuit board maintenance, and avoid forgetting to turn over by manual, so as to cause abnormality in the subsequent processing process.

[0033] In some embodiments, the classification and placement unit 2 includes a qualified board receiving area 21 and a scrap board receiving area 22. The qualified board receiving area 21 can be an automatic board stacking machine, which is connected to the end of the lower layer qualified board conveying structure 93, and can be equipped with a photoelectric counter, so as to facilitate counting of the qualified boards. The scrap board receiving area 22 can be an independent board stacking machine, which is arranged on the side of the first sorting mechanical hand 6 away from the screening unit 1, and can correspond to the discharging range of the first sorting mechanical hand 6, so as to realize storage of the scrap circuit boards.

[0034] In some embodiments, the liftable sorting unit 5 comprises an up-down conveying structure, a left-right conveying structure, and a circuit board suction structure. The up-down conveying structure can be a ball screw lifter, which is arranged directly above the lower layer of the board conveying structure 92, and can realize the movement of the board in the height direction. The left-right conveying structure can be a synchronous belt module, which can be fixed on the slider of the up-down conveying structure, and can realize the movement of the board in the left-right direction. The up-down conveying structure and the left-right conveying structure cooperate to realize the different placement of the board on the middle layer of the repair unit 3 and the upper layer of the repair unit 4, so that the board in the screening unit 1 is transported to the middle layer of the repair unit 3 and the upper layer of the repair unit 4 one by one, thereby realizing an automatic connection device of one AOI (automatic optical detection) and two VRS (visual repair system), reducing the speed difference between repair and detection, improving production capacity, and the circuit board suction structure can be four groups of silica gel vacuum suction cups, which are arranged at the moving end of the left-right conveying structure and are equipped with pressure sensors to realize the automatic grabbing and releasing of the board by the liftable sorting unit 5, and to ensure the smooth grabbing of the board without damage.

[0035] In some embodiments, the control system is electrically connected with the screening unit 1, the classification and placement unit 2, the middle layer repair unit 3, the upper layer repair unit 4, the liftable sorting unit 5, the first sorting mechanical hand 6, the lifting structure 7, and the turnover unit 8 to realize the overall automatic control, improve the transfer efficiency between different processes, and improve the production rhythm. The control system can be a PLC control system, and is equipped with a 10-inch touch screen to realize parameter setting and state monitoring, realize linkage between devices, and automatically generate production reports for subsequent problem analysis.

[0036] The specific working principle is as follows: After the DES line production, the circuit board is conveyed to the automatic optical detection structure 11, which checks the surface defects of the circuit board, judges the qualified board and the board to be repaired, and automatically sends the results to the second sorting mechanical hand 91, marks the repair defects, and feeds back the data to the control system.

[0037] The detected circuit board is temporarily stored in the temporary storage structure 12, and then is sent to the second sorting manipulator 91 through the general circuit board conveying structure 13. According to the detection result of the automatic optical detection structure 11, the second sorting manipulator 91 places the qualified circuit board on the lower qualified board conveying structure 93, and then linearly conveys the qualified circuit board to the qualified board collecting area, so that the first sorting manipulator 6 can place the qualified circuit board in the qualified board collecting area 21. The abnormal board (including: quantity abnormality (exceeding 914pnl), material number abnormality (mixed batch)) is placed on the lower abnormal board conveying structure 94, and then is manually processed and taken out from the output port. The board to be repaired is placed in the lower board-to-be-repaired conveying structure 92, and then is conveyed to the front of the liftable sorting unit 5. The suction structure of the liftable sorting unit 5 grasps the board to be repaired, adjusts the height through the up-down conveying structure, moves to the middle layer repair unit 3 or the upper layer repair unit 4, and then is conveyed to the middle layer circuit board conveying structure 31 or the upper layer circuit board conveying structure 41 through the left-right conveying structure.

[0038] The board to be repaired transferred to the middle layer flows into the feeding port of the first VRS repair machine 32 through the middle layer circuit board conveying structure 31 and the lifting structure 7. In the first VRS repair machine 32, the first VRS repair machine 32 displays the related information of the circuit board detected by the automatic optical detection structure 11 on the screen. The repair personnel repair the front and back surfaces of the circuit board according to the bad point coordinates displayed on the screen. After the repair is completed, the repair personnel mark “qualified” or “scrap” through the operation panel. The result is fed back to the control system in real time. The repaired circuit board is conveyed to the corresponding turnover unit 8 through the middle layer board collecting conveying structure 33. The front and back surfaces of the circuit board are adjusted as needed.

[0039] The board to be repaired transferred to the upper layer flows into the feeding port of the second VRS repair machine 42 through the upper layer circuit board conveying structure 41 and the lifting structure 7. In the second VRS repair machine 42, the second VRS repair machine 42 displays the related information of the circuit board detected by the automatic optical detection structure 11 on the screen. The repair personnel repair the front and back surfaces of the circuit board according to the bad point coordinates displayed on the screen. After the repair is completed, the repair personnel mark “qualified” or “scrap” through the operation panel. The result is fed back to the control system in real time. The repaired circuit board is conveyed to the corresponding turnover unit 8 through the upper layer board collecting conveying structure 43. The front and back surfaces of the circuit board are adjusted as needed.

[0040] The first sorting manipulator 6 grasps the circuit board from the two turnover units 8 according to the repair result fed back by the first VRS repair machine 32 and the second VRS repair machine 42. The circuit board marked “qualified” is conveyed to the qualified board collecting area 21, and is combined with the initial qualified board for counting. The circuit board marked “scrap” is conveyed to the scrap board collecting area 22, and is counted independently.

[0041] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-VRS maintenance automated line operation device, characterized in that: Including screening unit (1), one side of screening unit (1) is connected with DES production line; Classification placement unit (2), classification placement unit (2) is arranged on one side of screening unit (1), and can realize classification placement of qualified circuit board and scrap circuit board; Shunt conveying unit (9), shunt conveying unit (9) is connected with screening unit (1); Middle layer maintenance unit (3), middle layer maintenance unit (3) is arranged between classification placement unit (2) and shunt conveying unit (9); Upper layer maintenance unit (4), upper layer maintenance unit (4) is arranged between classification placement unit (2) and shunt conveying unit (9); Liftable sorting unit (5), liftable sorting unit (5) is arranged between shunt conveying unit (9), middle layer maintenance unit (3) and upper layer maintenance unit (4), and can realize that the board to be maintained in shunt conveying unit (9) is transported to middle layer maintenance unit (3) and upper layer maintenance unit (4) one by one; First sorting mechanical hand (6), first sorting mechanical hand (6) is arranged between classification placement unit (2), middle layer maintenance unit (3) and upper layer maintenance unit (4), and can realize classification placement of qualified circuit board and scrap circuit board in middle layer maintenance unit (3) and upper layer maintenance unit (4).

2. A multi-unit VRS maintenance automated connection job device according to claim 1, characterized in that: The screening unit (1) includes an automatic optical detection structure (11), and the automatic optical detection structure (11) is connected with the DES production line; Temporary storage structure (12), temporary storage structure (12) is connected with automatic optical detection structure (11); Total circuit board conveying structure (13), total circuit board conveying structure (13) is connected with temporary storage structure (12).

3. A multi-unit VRS maintenance automated connection device according to claim 2, characterized in that: The shunt conveying unit (9) includes a second sorting mechanical hand (91), and the second sorting mechanical hand (91) is arranged between the total circuit board conveying structure (13) and the liftable sorting unit (5); Lower layer board to be maintained conveying structure (92), lower layer board to be maintained conveying structure (92) is arranged between the second sorting mechanical hand (91) and the liftable sorting unit (5); Lower layer qualified board conveying structure (93), lower layer qualified board conveying structure (93) is arranged at one end of the second sorting mechanical hand (91) and connected with the classification placement unit (2).

4. The apparatus of claim 3, wherein: The shunt conveying unit (9) further includes a lower layer abnormal board conveying structure (94), and the lower layer abnormal board conveying structure (94) is arranged at the other end of the second sorting mechanical hand (91).

5. The apparatus of claim 3, wherein: The middle layer maintenance unit (3) includes a middle layer circuit board conveying structure (31), and the middle layer circuit board conveying structure (31) is arranged above the lower layer qualified board conveying structure (93) and connected with the liftable sorting unit (5); First VRS maintenance machine (32), first VRS maintenance machine (32) is vertically arranged at the end of the middle layer circuit board conveying structure (31); Middle layer board receiving conveying structure (33), middle layer board receiving conveying structure (33) is vertically arranged at the end of the first VRS maintenance machine (32).

6. A multi-VRS servicing automated connection device according to claim 5, characterized in that: The upper maintenance unit (4) comprises an upper circuit board conveying structure (41) arranged above the other end of the second sorting manipulator (91); A second VRS maintenance machine (42) is vertically arranged at the end of the upper circuit board conveying structure (41); An upper board collecting conveying structure (43) is vertically arranged at the end of the second VRS maintenance machine (42).

7. A multi-VRS servicing automated connection device according to claim 6, characterized in that: Further comprising a lifting structure (7) arranged between the middle layer circuit board conveying structure (31) and the feeding port of the first VRS maintenance machine (32), and between the upper circuit board conveying structure (41) and the feeding port of the second VRS maintenance machine (42).

8. A multi-VRS servicing automated connection device according to claim 6, characterized in that: Further comprising a turning unit (8) arranged at the end of the middle layer board collecting conveying structure (33) and the upper board collecting conveying structure (43).

9. A multi-VRS servicing automated connection device according to claim 3, characterized in that: The classified placement unit (2) comprises a qualified board collecting area (21) connected with the end of the lower qualified board conveying structure (93); A scrap board collecting area (22) is arranged on the side of the first sorting manipulator (6) away from the screening unit (1).

10. The apparatus of claim 3 wherein: The liftable sorting unit (5) comprises an up-down conveying structure arranged above the lower to-be-maintained board conveying structure (92); ​ A left-right conveying structure arranged on the up-down conveying structure; A circuit board suction structure arranged on the left-right conveying structure.

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