Smart warehousing system and method applied to SMT mounting production line

Abstract

A smart warehousing system and method applied to an SMT mounting production line, relating to the technical field of smart warehousing. The system comprises carrier AGVs, transfer platforms, a superordinate computer module (40), an inbound / outbound AGV (50), and a storage module (60). The carrier AGVs are used for carrying magazines between a mounting production line and the transfer platforms; the transfer platforms are used for transferring the magazines; the superordinate computer module (40) is used for controlling the storage of the magazines; the inbound / outbound AGV (50) is used for carrying the magazines between the transfer platform and the storage module; and the storage module (60) is used for storing the magazines. According to the smart warehousing system, the inbound / outbound turnover efficiency of magazines can be improved, and the difficulty in path planning and task scheduling of the carrier AGVs and the inbound / outbound AGV (50) is reduced; in addition, whole-process precise management control can be carried out on a PCB transfer process, the SMT production quality is improved, and the difficulty in traceability is reduced. In addition, manual carriage of magazines is prevented in a whole inbound / outbound process, and therefore, the risk of damage to magazines caused by collisions can also be reduced.

Description

An intelligent storage system and method for SMT patch production line Technical Field

[0001] The present invention relates to the field of intelligent warehousing technology, and in particular to an intelligent warehousing system and method applied to an SMT patch production line. Background Art

[0002] Surface Mount Technology (SMT) is the abbreviation for a series of process flows based on Printed Circuit Board (PCB). It is a circuit connection technology that mounts pinless or short-lead surface mount components on the surface of the PCB and then solders them together through reflow soldering or dip soldering. It is currently the most popular technology and process in the electronics assembly industry.

[0003] The basic SMT process includes dispensing, placement, reflow soldering, cleaning, inspection, and rework. Generally, a dispensing machine first drips glue onto a fixed location on the PCB to prepare for placement. A placement machine then accurately installs the surface mount components onto the PCB. The process then continues with reflow soldering, cleaning, inspection, and rework.

[0004] In the actual production process, PCBs usually need to be mounted on both sides. The glue on the PCB usually takes a long time to completely solidify, so the semi-finished PCB with one side patched needs to be stored and dried before it can be returned to the patch production line for gluing and patching on the other side. Specifically, the PCB after one side is patched is stored in a magazine box by a PCB board collector located downstream of the patch line. A magazine box refers to a plastic or metal container used to store and provide electronic components. Usually, one magazine box can store multiple PCBs. The magazine box is then transported to the warehouse for storage, and after the glue solidifies, it is transported to the upstream of the patch production line for patching on the other side.

[0005] In the existing technology, in order to achieve the turnover of magazine magazines, the main task of loading and unloading materials is to rely on on-site personnel. This will lead to idle personnel and untimely loading and unloading of materials. In addition, this storage method of magazine magazines, which mainly relies on human resources, reduces the efficiency of warehousing and outbound operations. On the other hand, it has a low level of precision in the management and control of finished PCBs. It is easy for the glue on one side of the PCB to not fully cure before the production of patches on the other side is carried out, which reduces the production quality of SMT and makes traceability difficult. In addition, there is a risk of damage to the product during human handling. People are prone to bumping into the magazine magazines during handling, reducing the service life of the magazine magazines.

[0006] Summary of the Invention

[0007] To this end, an embodiment of the present invention provides an intelligent warehousing system and method for an SMT patch production line, which is used to solve the problem that the turnover method of the existing technology relies on human resources to transport magazine boxes, reduces the efficiency of warehousing and outgoing and the production quality of SMT, and shortens the service life of magazine boxes.

[0008] In order to solve the above problems, an embodiment of the present invention provides an intelligent warehousing system applied to an SMT patch production line, wherein the patch production line includes a first patch production line and a second patch production line, and the intelligent warehousing system includes: a transport AGV, a transfer platform, a host computer module, an inbound and outbound AGV, and a warehousing module;

[0009] The transport AGV includes a first transport AGV and a second transport AGV.

[0010] The first transport AGV is configured to receive a first transport instruction sent by the first patch production line, and transport the first magazine box at the end of the first patch production line to the cache position of the first transfer platform; the second transport AGV is configured to receive a second transport instruction sent by the second transfer platform, and transport the second magazine box on the second transfer platform to the head end of the second patch production line;

[0011] The transfer platform includes a first transfer platform and a second transfer platform. The first transfer platform is used to receive the first magazine box, send a storage request to the inbound and outbound AGV, and send a request to the upper computer module to obtain a storage location; the second transfer platform is used to receive the second magazine box, scan the code to confirm the receipt of the second magazine box, send feedback information to the upper computer module, and send a second handling instruction to the second handling AGV;

[0012] The host computer module is configured to receive binding information between the PCB barcode and the first magazine box barcode on the first patch production line, and receive a request for obtaining a storage location sent by the first transfer platform, determine the storage location of the first magazine box in the storage module based on a preset entry and exit rule, and send the corresponding storage location information to the entry and exit AGV; the host computer module is also configured to send the storage location information corresponding to the second magazine box that needs to be moved out of the storage module to the entry and exit AGV based on the preset entry and exit rule, send an exit instruction to the entry and exit AGV, receive feedback information sent by the second transfer platform, and unbind the second magazine box from the corresponding storage location information;

[0013] The in-and-out AGV is used to receive an inbound request from the first transfer platform, obtain a first magazine box outputted by the first transfer platform, and deliver the first magazine box to a corresponding storage location according to the storage location information corresponding to the first magazine box sent by the host computer module. The in-and-out AGV is also used to receive an outbound instruction from the host computer module, obtain a corresponding second magazine box according to the storage location information corresponding to the second magazine box sent by the host computer module, and deliver the second magazine box to the second transfer platform.

[0014] The storage module is used to store the first magazine box and the second magazine box.

[0015] In one embodiment of the present invention, both the first transport AGV and the second transport AGV are provided with a first conveying device, and the transmission direction of the first conveying device is set to be bidirectional.

[0016] In one embodiment of the present invention, a second conveying device is provided on the first transfer platform and the second transfer platform, and the transmission direction of the second conveying device is set to be unidirectional.

[0017] In one embodiment of the present invention, a first barcode scanning device is provided at the end of the first patch production line for scanning the PCB barcode and the first magazine box barcode, binding the information, and sending the binding information of the PCB barcode and the first magazine box barcode to the host computer module.

[0018] In one embodiment of the present invention, a second barcode scanning device is provided on the first transfer platform for scanning the barcode of the first magazine box to confirm that the first magazine box enters the cache position of the first transfer platform.

[0019] In one embodiment of the present invention, a third barcode scanning device is provided on the second transfer platform for scanning the barcode of the second magazine box to confirm receipt of the second magazine box and send feedback information of receipt of the second magazine box to the host computer module.

[0020] In one embodiment of the present invention, a fourth code scanning device is provided at the head end of the second patch production line for acquiring PCB information corresponding to the second magazine box.

[0021] In one embodiment of the present invention, the storage module includes two groups of symmetrically arranged storage sub-modules, the storage sub-module includes at least one layer of storage locations, and the layer of storage locations includes multiple storage locations. An entry and exit channel is formed between the two groups of storage sub-modules for the AGV to walk and turn.

[0022] In one embodiment of the present invention, the preset entry and exit rules include:

[0023] Warehousing rules: The first magazine box is put into the warehouse from the storage sub-module X on one side, starting from the storage bin on the bottom layer. Once the storage bin on the bottom layer is full, it is put into the warehouse one layer higher in order.

[0024] When the number of first magazine boxes received in storage submodule X reaches the preset number N, they are then sent to storage submodule Y on the other side, and the order and storage locations of the first magazine boxes in storage submodule Y are the same as those in storage submodule X. The preset number N satisfies:

[0025] Where [] represents integer operation; T represents the curing time of the patch glue on one side of the PCB; k represents the adjustment coefficient, which is used to adjust the curing time caused by factors such as glue curing. It represents the average time t for mounting one side of PCB; n represents the number of PCBs that can be stored in a magazine box;

[0026] When the number of first magazine boxes received in storage submodule Y reaches the preset number N, the first magazine box is received in storage submodule X again and the cycle continues until the supply of first magazine boxes stops.

[0027] Outbound rules: After completing the warehousing process of a first magazine box, if there is a second magazine box in the storage bin on the opposite side of the storage bin of the first magazine box, the second magazine box in the storage bin on the opposite side will be outbound; otherwise, the outbound will be abandoned.

[0028] An embodiment of the present invention further provides an intelligent warehousing method applied to an SMT patch production line, which uses the intelligent warehousing system applied to an SMT patch production line as described above, including:

[0029] The host computer module receives the binding information of the PCB barcode on the first patch production line and the first magazine box barcode;

[0030] The first transport AGV receives the first transport instruction sent by the first patch production line and transports the first magazine box output from the end of the first patch production line to the cache position of the first transfer platform;

[0031] The first transfer platform receives the first magazine box, sends a storage request to the inbound and outbound AGV, and sends a request to the upper computer module to obtain a storage location;

[0032] The host computer module receives the request for obtaining the storage location sent by the first transfer platform, determines the storage location of the first magazine box in the storage module based on the preset entry and exit rules, and sends the corresponding storage location information to the entry and exit AGV;

[0033] The inbound and outbound AGV receives the inbound request from the first transfer platform, obtains the first magazine box outputted by the first transfer platform, and delivers the first magazine box to the corresponding storage location according to the storage location information corresponding to the first magazine box sent by the host computer module;

[0034] Based on the preset entry and exit rules, the host computer module sends the storage location information corresponding to the second magazine box that needs to be removed from the storage module to the entry and exit AGV, and sends an exit instruction to the entry and exit AGV;

[0035] The inbound and outbound AGV receives the outbound instruction from the host computer module, and transfers the second magazine box to the second transfer platform according to the storage location information corresponding to the second magazine box sent by the host computer module;

[0036] The second transfer platform receives the second magazine box, scans the code to confirm receipt of the second magazine box, sends feedback information to the host computer module, and sends a second transport instruction to the second transport AGV. The host computer module receives the feedback information sent by the second transfer platform and unbinds the second magazine box from the corresponding storage location information.

[0037] The second transport AGV receives the second transport instruction and transports the second magazine box to the head end of the second patch production line.

[0038] Beneficial effects: The intelligent warehousing system provided by the present invention for use in an SMT patch production line adopts a transport AGV to transfer magazine boxes between the patch production line and the transfer platform. The inbound and outbound AGV completes the inbound and outbound storage of magazine boxes based on preset inbound and outbound storage rules, and transfers materials between the transfer platform and the storage module. As a result, on the one hand, the turnover time of magazine boxes is reduced, and the efficiency of inbound and outbound storage of magazine boxes is improved. On the other hand, the movement paths of the transport AGV and the inbound and outbound AGV will not interfere with each other, which reduces the difficulty of path planning and task scheduling, avoids the problem of the transport AGV and the inbound and outbound AGV stopping to wait or taking a detour to avoid obstacles due to path interference, and further improves the efficiency of inbound and outbound storage of magazine boxes. Furthermore, by obtaining the binding information between the PCB barcode and the magazine cassette barcode through the host computer module, precise management can be achieved throughout the entire PCB production process, from production on the first SMT production line, through storage, delivery, and ultimately to processing on the second SMT production line. This prevents the production of SMT on the other side before the glue on one side of the PCB is fully cured, thereby improving SMT production quality and reducing traceability. Furthermore, the magazine cassettes are handled by no one during the entire storage and delivery process, reducing the risk of damage to the cassettes due to bumps and bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the implementation cases of the present invention or the technical solutions in the prior art, the following is a brief description of the drawings required for use in the embodiments. By referring to the drawings, the features and advantages of the present invention will be more clearly understood. The drawings are schematic and should not be understood as limiting the present invention in any way. Those skilled in the art can derive other drawings based on these drawings without inventive effort. Among them:

[0040] FIG1 is a block diagram of an intelligent storage system applied to an SMT patch production line according to an embodiment;

[0041] FIG2 is a flow chart of an intelligent warehousing method applied to an SMT patch production line provided in an embodiment.

[0042] Figure numerals in the specification: 11, first patch production line; 12, second patch production line; 21, first transport AGV; 22, second transport AGV; 31, first transfer platform; 32, second transfer platform; 40, host computer module; 50, inbound and outbound AGV; 60, storage module. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0044] In order to solve the problems in the prior art of relying on human resources to transport magazine boxes, which leads to reduced efficiency of magazine box in and out of storage and reduced SMT production quality. This embodiment provides an intelligent warehousing system and method for SMT patch production lines. As shown in Figure 1, the intelligent warehousing system for SMT patch production lines proposed in the embodiment of the present invention includes: a transport AGV, a transfer platform, a host computer module 40, an in and out AGV 50, and a storage module 60. Among them, the transport AGV includes a first transport AGV 21 and a second transport AGV 22, and the transfer platform includes a first transfer platform 31 and a second transfer platform 32.

[0045] Specifically, the first transport AGV 21 is used to receive the first transport instruction sent by the first patch production line 11, and transport the first magazine box at the end of the first patch production line 11 to the cache position of the first transfer platform 31. The second transport AGV 22 is used to receive the second transport instruction sent by the second transfer platform 32, and transport the second magazine box to the head end of the second patch production line 12. Specifically, the patch production line includes a PCB feeder at the head end and a PCB receiver at the end. Therefore, the first transport AGV 21 obtains the first transport instruction and the first magazine box from the PCB receiver at the end of the first patch production line. The second transport AGV 22 transports the second magazine box to the PCB feeder at the head end of the second patch production line 12.

[0046] The first transfer platform 31 is used to receive the first magazine box and send a storage request to the inbound and outbound AGV 50 and a request to obtain a storage location to the host computer module 40. The second transfer platform 32 is used to receive the second magazine box, scan the code to confirm receipt of the second magazine box, send feedback information to the host computer module 40, and send a second transfer instruction to the second transfer AGV 22.

[0047] The host computer module 40 is configured to receive the binding information of the PCB barcode and the first magazine box barcode on the first patch production line 11, as well as the request for obtaining the storage location sent by the first transfer platform 31, and determine the storage location of the first magazine box in the storage module 60 based on the preset entry and exit rules, and send the corresponding storage location information to the entry and exit AGV 50. The host computer module 40 is also configured to transfer the second magazine box that needs to be removed from the storage module 60 based on the preset entry and exit rules.

[0048] The storage location information corresponding to the magazine box is sent to the inbound and outbound AGV50, and

[0049] AGV50 sends outbound instructions, receives feedback information sent by the second transfer platform 32, and unbinds the second magazine box from the corresponding storage location information. Generally, the host computer module 40 includes a host computer body, a server, a memory, a processor, and a communication unit.

[0050] The inbound and outbound AGV 50 is used to receive inbound requests from the first transfer platform 31, obtain the corresponding first magazine box, and deliver the first magazine box to the corresponding storage location according to the storage location information corresponding to the first magazine box sent by the host computer module 40. The inbound and outbound AGV 50 is also used to receive outbound instructions from the host computer module 40, and transfer the second magazine box to the second transfer platform 32 according to the storage location information corresponding to the second magazine box sent by the host computer module 40.

[0051] The storage module 60 is used to store the first magazine box and the second magazine box. In this embodiment, the storage module 60 includes two groups of symmetrically arranged storage sub-modules, and the two groups of storage sub-modules are arranged relative to each other; and an entry and exit channel for the AGV 50 to walk and turn is formed between the two groups of storage sub-modules, making the driving path of the AGV 50 to enter and exit the warehouse simple and reducing the difficulty of planning. Each storage sub-module includes at least one layer of storage space; and each layer of storage space includes multiple storage locations. In actual applications, each storage sub-module is assembled by multiple storage units, and each storage unit includes several storage locations. Generally, according to storage needs, each storage unit is generally provided with 3-4 layers of storage space, and each layer is provided with 3-4 storage locations. In actual applications, due to factors such as space limitations, magazine box size, and production constraints, the storage locations within the storage unit can be reasonably adjusted.

[0052] In this embodiment, in order to explain the technical solution in detail, the patch production line is set to include a first patch production line 11 and a second patch production line 12. Among them, the first patch production line 11 is used to perform patch processing on one side of the PCB. The second patch production line 12 is used to perform patch processing on the other side of the PCB. In actual applications, the number of patch production lines may be greater than two. Of course, the first patch production line 11 and the second patch production line 12 may also be one patch production line, and it is only necessary to set different patch processes for double-sided patch production of the PCB. When the patch process of the patch production line is set to process the first side of the PCB, the patch production line is defined as the first patch production line 11; when the patch process of the patch production line is set to process the second side of the PCB, the patch production line is defined as the second patch production line 12.

[0053] In this embodiment, the magazine box that stores semi-finished PCBs with one side of the PCBs patched and that circulates between the first SMT production line 11 and the storage module 60 for storage is defined as the first magazine box; the glue on the PCBs stored in the first box has not yet fully solidified. The magazine box that stores semi-finished PCBs with one side of the PCBs patched and that circulates between the storage module 60 and the second SMT production line 12 for storage is defined as the second magazine box. The transport AGV between the first SMT production line 11 and the first transfer platform 31 is defined as the first transport AGV 21; the transport AGV between the second transfer platform 32 and the second SMT production line 12 is defined as the second transport AGV 22. Furthermore, the transport AGVs here can be replaced with automated mobile equipment with transport capabilities, such as IGVs, AMRs, and other devices. Similarly, the inbound and outbound AGVs in this embodiment can also be replaced with automated mobile equipment with transport capabilities. In order to cope with the problem of entering and exiting the warehouse, the AGV for entering and exiting the warehouse should also be equipped with a lifting mechanism to enable its own handling device to have a lifting function.

[0054] Specifically, the first patch production line 11 performs patch processing on the first side of the PCB and transports the patch-processed PCB to the first magazine box of the PCB board receiving machine at the end of the first patch production line 11. The first barcode scanning device on the PCB board receiving machine at the end of the first patch production line 11 scans the PCB barcode and the first magazine box barcode to complete the information binding between the PCB barcode and the first magazine box barcode. The binding information is then transmitted to the host computer module 40, and the binding information also includes production line information, time information, etc. Of course, the barcode in this embodiment is only used as an identifier for the basic information of the PCB or magazine box, and its identification function should be equivalent to other possible identification symbol types, such as a QR code, a label image, an identification symbol, or a label number.

[0055] When the first magazine box is filled with a preset number of PCBs, the PCB receiving machine at the end of the first patch production line 11 sends a first transport instruction to the first transport AGV 21 .

[0056] Furthermore, the first transport AGV 21 receives the first transport instruction from the PCB receiver of the first SMT production line 11, moves to the output position of the PCB receiver of the first SMT production line 11, and receives the first magazine box delivered by the PCB receiver of the first SMT production line 11. The first transport AGV 21 then moves to the input docking position of the first transfer platform 31, and the first magazine box is transferred to the buffer position of the first transfer platform 31.

[0057] Furthermore, a second barcode scanning device is provided on the first transfer platform 31, which scans the barcode of the first magazine box to confirm that the first magazine box has entered the cache position of the first transfer platform 31. A storage request is sent to the storage AGV 50 and a request for obtaining a storage position is sent to the upper computer module 40.

[0058] Furthermore, the host computer module 40 receives a request for obtaining a storage location sent by the first transfer platform 31, determines the storage location of the first Magazine material box in the storage module 60 based on the preset entry and exit rules, and sends the corresponding storage location information to the entry and exit AGV50, where the storage location information includes information such as the storage location number, storage location location and height.

[0059] Furthermore, the inbound / outbound AGV 50 receives the inbound request from the first transfer platform 31, moves to the output docking position of the first transfer platform 31, docks with the cache location of the first transfer platform 31, and retrieves the corresponding first magazine box. Based on the storage location information corresponding to the first magazine box sent by the host computer module 40, it moves to the corresponding location and delivers the first magazine box to the corresponding storage location. The corresponding storage location in the storage module 60 then scans the barcode on the first magazine box to confirm its entry into the warehouse.

[0060] Furthermore, based on the preset entry and exit rules, the host computer module 40 sends the storage location information corresponding to the second Magazine material box that needs to be removed from the storage module 60 to the entry and exit AGV 50 and sends an exit instruction to the entry and exit AGV 50.

[0061] Furthermore, the inbound / outbound AGV 50 receives the outbound instruction from the host computer module 40 and, based on the storage location information corresponding to the second magazine box sent by the host computer module 40, transfers the second magazine box to the input docking position of the second transfer platform 32. The inbound / outbound AGV 50 docks with the cache position of the second transfer platform 32 and transfers the second magazine box to the second transfer platform 32.

[0062] Furthermore, the second transfer platform 32 receives the second magazine box and scans the barcode on the second magazine box using a third barcode scanner installed on the second transfer platform 32. This confirms receipt of the second magazine box and sends feedback information to the host computer module 40. The host computer module 40 unbinds the second magazine box from the corresponding storage location information. The second transfer platform 32 then sends a second transport instruction to the second transport AGV 22.

[0063] Furthermore, the second transport AGV 22 receives the second transport instruction, moves to the output docking position of the second transfer platform 32 , and docks with the cache position of the second transfer platform 32 , transporting the second Magazine material box to the PCB feeder of the second SMT production line 12 .

[0064] A transport AGV transfers PCB magazine boxes between the SMT production line and the transfer platform. The inbound and outbound AGV completes the inbound and outbound transfers of magazine boxes based on pre-set inbound and outbound rules, and also transfers materials between the transfer platform and the storage module. This reduces magazine box turnover time and improves magazine box inbound and outbound turnover efficiency. To enhance safety during transport, the transport AGV is equipped with a first conveyor device to input, temporarily store, and output magazine boxes.

[0065] To prevent the transport AGV from tipping over, bumping into things, and other hazards during its movement, protective devices must be installed on at least three sides of the transport AGV. Therefore, the transport AGV has only one entrance and exit. This requires the first conveyor to be bidirectional, connecting to the patch production line and the transfer platform for the input and output of magazine magazines. That is, both the first transport AGV 21 and the second transport AGV 22 are equipped with a first conveyor; the first conveyor's transmission direction is set to bidirectional. This prevents magazine magazines from tipping over, bumping into things, and prolongs their service life.

[0066] For reference, the transfer platform is usually fixed at a certain position, so when the magazine boxes are cached on the transfer platform, there is no need to consider the safety risks during the movement. Therefore, in this embodiment, a second conveying device is provided on the transfer platform; and the transmission direction of the second conveying device is set to be unidirectional. As a result, the magazine boxes are transported unidirectionally on the second conveying device, and the transport AGV and the in-and-out AGV 50 pick up / deliver the magazine boxes at both ends of the second conveying device respectively. That is, the first transfer platform 31 and the second transfer platform 32 are provided with a second conveying device with a transmission direction set to be unidirectional. Under this setting, the transport AGV and the in-and-out AGV 50 will not interfere with each other's movement paths, reducing the difficulty of path planning and task scheduling, avoiding the problem of the transport AGV and the in-and-out AGV 50 stopping to wait or detouring to avoid obstacles due to path interference, and further improving the efficiency of magazine boxes in and out of storage.

[0067] Furthermore, the PCB feeder of the second patch production line 12 receives the second magazine box, and the fourth scanning device set at the head end of the second patch production line 12 scans the second magazine box to obtain the PCB information corresponding to the second magazine box, and then moves the PCBs in the second magazine box to the upstream conveying position of the second patch production line 12 in turn, and performs patch processing on the second side of the PCB according to the corresponding patch requirements.

[0068] The following will describe the above preset entry and exit rules in detail in conjunction with the operation process of the AGV50:

[0069] First, explain the warehousing rules:

[0070] The AGV50 for inbound and outbound storage continuously obtains the first magazine material box containing the PCB with the first surface SMT processing completed from the first SMT production line 11, and transports it to the storage module for storage:

[0071] First, the first magazine boxes are sequentially loaded into the storage submodule X on one side, with the lowest storage bin being the first priority. Once the lowest storage bin is full, the next bin is loaded into the next level. The sequential loading here should be understood as the sequential loading of the first magazine boxes in the order of their supply. Of course, a preferred approach for sequential loading in this embodiment is to have the first magazine boxes loaded sequentially in the order of their supply, with the storage bins for two consecutive loadings placed adjacent to each other.

[0072] When the number of magazine boxes in storage submodule X reaches the preset number N, they are then sent to storage submodule Y on the other side. The order and storage locations of the magazine boxes in storage submodule Y on the other side are aligned with the order and storage locations of the magazine boxes in storage submodule X. The preset number N satisfies the following formula:

[0073] Where [] represents integer operation; T represents the curing time of the patch glue on one side of the PCB; k represents the adjustment coefficient, which is used to adjust the curing time caused by factors such as glue curing. It represents the average time t for mounting one side of PCB; n represents the number of PCBs that can be stored in a magazine box.

[0074] Finally, when the number of first magazine boxes received in the storage submodule Y reaches the preset number N, the first magazine box is received in the storage submodule X again and the cycle continues until the supply of the first magazine box stops.

[0075] Next, the outbound rules are explained:

[0076] After completing the warehousing process of a first magazine box, if there is a second magazine box in the storage bin on the opposite side of the storage bin of the first magazine box, the second magazine box in the storage bin on the opposite side will be shipped out; otherwise, the shipping will be abandoned. Specifically, after the first magazine box is shipped in the storage bin x of the storage submodule X, it is necessary to determine whether there is a magazine box in the storage bin y of the storage submodule Y opposite the storage bin x. One situation is that there is no magazine box. The reason for this situation is that the number of stored first magazine boxes has not yet reached the preset number N, that is, the glue on the PCB in the first first magazine box that was first shipped in has not yet completely solidified. In this case, there is no need to ship out. Another situation is that there is a magazine box in storage bin y of storage submodule Y opposite storage bin x, and the glue on the PCB stored in the magazine box in storage bin y has completely solidified. In this case, the in-and-out AGV50 rotates 180° to perform an outbound operation on the second magazine box in storage bin y of storage submodule Y.

[0077] Since both inbound and outbound operations are on the same floor, the inbound and outbound AGV 50 does not need to be raised or lowered (the lifting mechanism does not need to be adjusted), shifted, or docked after loading the first magazine box. Instead, the inbound and outbound AGV 50 only needs to rotate 180° to unload the second magazine box. This significantly reduces inbound and outbound time, avoids disordered inbound and outbound operations, and improves inbound and outbound efficiency.

[0078] As shown in FIG2 , the following describes a storage method of an intelligent storage system for an SMT patch production line provided in this embodiment:

[0079] S1: The host computer module 40 receives the binding information of the PCB barcode and the first magazine box barcode on the first patch production line 11;

[0080] S2: The first transport AGV 21 receives the first transport instruction sent by the first patch production line 11, and transports the first magazine box output from the end of the first patch production line 11 to the buffer position of the first transfer platform 31;

[0081] S3: The first transfer platform 31 receives the first magazine box, sends a storage request to the storage and retrieval AGV 50, and sends a request to the host computer module 40 to obtain a storage location;

[0082] S4: The host computer module 40 receives the request for obtaining the storage location sent by the first transfer platform 31, determines the storage location of the first magazine box in the storage module 60 based on the preset entry and exit rules, and sends the corresponding storage location information to the entry and exit AGV 50;

[0083] S5: The inbound and outbound AGV 50 receives the inbound request from the first transfer platform 31, obtains the first magazine box outputted by the first transfer platform 31, and delivers the first magazine box to the corresponding storage location according to the storage location information corresponding to the first magazine box sent by the host computer module 40;

[0084] S6: The host computer module 40 sends the storage location information corresponding to the second magazine box that needs to be removed from the storage module 60 to the in-and-out AGV 50 based on the preset in-and-out rules, and sends an outbound instruction to the in-and-out AGV 50;

[0085] S7: The inbound and outbound AGV 50 receives the outbound instruction from the host computer module 40 and transfers the second magazine box to the second transfer platform 32 according to the storage location information corresponding to the second magazine box sent by the host computer module 40;

[0086] S8: The second transfer platform 32 receives the second magazine box, scans the code to confirm receipt of the second magazine box, sends feedback information to the host computer module 40, and sends a second transport instruction to the second transport AGV 22. The host computer module 40 receives the feedback information sent by the second transfer platform 32 and unbinds the second magazine box from the corresponding storage location information.

[0087] S9: The second transport AGV 22 receives the second transport instruction and transports the second magazine box to the head end of the second patch production line 12.

[0088] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An intelligent storage system applied to an SMT patch production line, wherein the patch production line includes a first patch production line and a second patch production line, characterized in that: The intelligent warehousing system includes: a transport AGV, a transfer platform, a host computer module, an in-and-out AGV, and a warehousing module; The transport AGV includes a first transport AGV and a second transport AGV, wherein the first transport AGV is configured to receive a first transport instruction sent by the first patch production line, and transport the first Magazine material box at the end of the first patch production line to the cache position of the first transfer platform; the second transport AGV is configured to receive a second transport instruction sent by the second transfer platform, and transport the second Magazine material box on the second transfer platform to the head end of the second patch production line; The transfer platform includes a first transfer platform and a second transfer platform. The first transfer platform is used to receive the first magazine box, send a storage request to the in-and-out AGV, and send a request to the upper computer module to obtain a storage location; the second transfer platform is used to receive the second magazine box, scan the code to confirm the receipt of the second magazine box, send feedback information to the upper computer module, and send a second handling instruction to the second handling AGV; The host computer module is configured to receive binding information between the PCB barcode and the first Magazine material box barcode on the first patch production line, and receive a request for obtaining a storage location sent by the first transfer platform, determine the storage location of the first Magazine material box in the storage module based on a preset entry and exit rule, and send the corresponding storage location information to the entry and exit AGV; the host computer module is also configured to send the storage location information corresponding to the second Magazine material box that needs to be moved out of the storage module to the entry and exit AGV based on the preset entry and exit rule, send an exit instruction to the entry and exit AGV, receive feedback information sent by the second transfer platform, and unbind the second Magazine material box from the corresponding storage location information; The in-and-out AGV is used to receive the in-warehouse request of the first transfer platform, obtain the first Magazine material box corresponding to the output of the first transfer platform, and The storage bin information corresponding to the first Magazine box is sent to the corresponding storage bin; the in-and-out AGV is also used to receive the out-of-warehouse instruction from the upper computer module, and according to the storage bin information corresponding to the second Magazine box sent by the upper computer module, obtain the corresponding second Magazine box, and transfer it to the second transfer platform; The storage module is used to store the first magazine box and the second magazine box.

2. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: The first transport AGV and the second transport AGV are both provided with a first transport device, and the transmission direction of the first transport device is set to be bidirectional.

3. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: The first transfer platform and the second transfer platform are provided with a second conveying device, and the transmission direction of the second conveying device is set to be unidirectional.

4. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: A first barcode scanning device is provided at the end of the first patch production line for scanning the PCB barcode and the first Magazine material box barcode, binding the information, and sending the binding information of the PCB barcode and the first Magazine material box barcode to the host computer module.

5. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: The first transfer platform is provided with a second barcode scanning device for scanning the barcode of the first magazine box to confirm that the first magazine box enters the cache position of the first transfer platform.

6. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: The second transfer platform is provided with a third barcode scanning device for scanning the barcode of the second magazine box to confirm receipt of the second magazine box and send feedback information of receipt of the second magazine box to the host computer module.

7. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: A fourth barcode scanning device is provided at the head end of the second patch production line for acquiring PCB information corresponding to the second Magazine material box.

8. The intelligent storage system for SMT patch production line according to claim 1 is characterized in that: The storage module includes two groups of symmetrically arranged storage sub-modules, each of which includes at least one layer of storage locations, each of which includes multiple storage locations, and an entry and exit channel for the AGV to walk and turn is formed between the two groups of storage sub-modules.

9. The intelligent storage system for SMT patch production line according to claim 1, characterized in that: The preset warehousing rules include: Warehouse entry rules: The first magazine box is warehoused from the storage submodule X on one side, starting from the storage bin on the bottom layer. When the storage bin on the bottom layer is full, it is warehoused one layer higher in sequence. When the number of first magazine boxes stored in storage submodule X reaches the preset number N, they are then stored in storage submodule Y on the other side, and the storage order and storage location of the first magazine boxes in storage submodule Y are opposite to those in storage submodule X; preset number N: Among them, [] represents integer operation; T represents the curing time of the patch glue on one side of the PCB; k represents the adjustment coefficient, which is used to adjust the inaccurate curing time caused by reasons such as glue curing; It represents the average time t of one side of PCB. n represents the number of PCBs that can be stored in a magazine box. When the number of first magazine boxes stored in storage submodule Y reaches the preset number N, the storage process of the first magazine box in storage submodule X is executed again and the cycle continues until the supply of the first magazine box stops; Outbound rules: After the warehousing process of a first magazine box is completed, if there is a second magazine box in the storage bin on the opposite side of the storage bin of the first magazine box, the second magazine box in the storage bin on the opposite side will be outbound; otherwise, the outbound will be abandoned.

10. An intelligent storage method applied to an SMT patch production line, characterized in that: The intelligent storage system for SMT patch production line according to any one of claims 1 to 9 comprises: The upper computer module receives the binding information of the PCB barcode on the first patch production line and the first magazine box barcode; The first transport AGV receives the first transport instruction sent by the first patch production line, and transports the first Magazine material box outputted from the end of the first patch production line to the cache position of the first transfer platform; The first transfer platform receives the first Magazine box, sends a request to the inbound and outbound AGV, and sends a request to the upper computer module to obtain a storage location; The upper computer module receives the request for obtaining the storage location sent by the first transfer platform, determines the storage location of the first Magazine material box in the storage module based on the preset entry and exit rules, and sends the corresponding storage location information to the entry and exit AGV; The in-and-out AGV receives the in-warehouse request from the first transfer platform, obtains the first Magazine material box outputted by the first transfer platform, and sends the first Magazine material box to the corresponding storage location according to the storage location information corresponding to the first Magazine material box sent by the upper computer module; Based on the preset entry and exit rules, the upper computer module sends the storage location information corresponding to the second Magazine box that needs to be removed from the storage module to the entry and exit AGV, and sends an exit instruction to the entry and exit AGV; The AGV receives the outbound instruction from the host computer module and responds according to the second The storage bin information corresponding to the Magazine box is used to transfer the second Magazine box to the second transfer platform; The second transfer platform receives the second Magazine box, scans the code to confirm receipt of the second Magazine box, sends feedback information to the host computer module, and sends a second transport instruction to the second transport AGV. The host computer module receives the feedback information sent by the second transfer platform, and unbinds the second Magazine box from the corresponding storage location information. The second transport AGV receives the second transport instruction, and transports the second Magazine material box to the head end of the second patch production line.

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