An intelligent warehousing system and method applied to an SMT patch production line

Abstract

The application provides an intelligent storage system and method applied to an SMT patch production line, and relates to the technical field of intelligent storage. The system comprises a carrying AGV, a transfer platform, an upper computer module, an in-out warehouse AGV and a storage module; the carrying AGV is used for carrying a Magazine box between the patch production line and the transfer platform; the transfer platform is used for carrying the Magazine box; the upper computer module is used for controlling the storage of the Magazine box; the in-out warehouse AGV is used for carrying the Magazine box between the transfer platform and the storage module; and the storage module is used for storing the Magazine box. The intelligent storage system provided by the application can improve the in-out warehouse turnover efficiency of the Magazine box, reduce the difficulty of path planning and task scheduling of the carrying AGV and the in-out warehouse AGV; meanwhile, the whole process of the flow process of the PCB can be accurately managed and controlled, the production quality of the SMT is improved, and the difficulty of traceability is reduced. In addition, the Magazine box is avoided from being carried by personnel in the whole process of in-out warehouse, and the risk of damage of the Magazine box is also reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent warehousing, and particularly relates to an intelligent warehousing system and method applied to an SMT patch production line. BACKGROUND

[0002] Surface Mount Technology (SMT) refers to a series of process flows for processing on the basis of a Printed Circuit Board (PCB), and is a circuit connection technology for welding and assembling through reflow soldering or dip soldering, etc., by installing a surface-mounted component without a pin or a short pin on the surface of the PCB, and is the most popular technology and process in the current electronic assembly industry.

[0003] Basic process elements of SMT include dispensing, mounting, reflow soldering, cleaning, testing, and repair, etc. Generally, the glue is first dropped on the fixed position of the PCB by a dispensing machine to prepare for patching. Then, the surface-mounted component is accurately installed on the fixed position of the PCB by a patching machine. Then, the process of reflow soldering, cleaning, testing, and repair, etc. is experienced.

[0004] In actual production, the PCB usually needs to be mounted on both sides. The glue on the PCB usually needs a long time to completely solidify, so the PCB semi-finished product after completing one side patching needs to be stored and dried before returning to the patching production line for the other side dispensing and patching. Specifically, the PCB after completing one side patching is stored to a Magazine box by a PCB collecting machine arranged downstream of the patching line. The Magazine box refers to a container made of plastic or metal for storing and providing electronic components. Generally, one Magazine box can store multiple PCBs. Then, the Magazine box is transported to a warehouse for storage, and after the glue solidifies, it is transported to the upstream of the patching production line for the other side patching.

[0005] In the prior art, in order to realize the turnover of the Magazine box, personnel are mainly relied on to undertake the carrying work of loading and unloading. This will cause personnel to be idle and loading and unloading to be not timely. In addition, this Magazine box storage method mainly relying on human resources reduces the efficiency of warehouse entry and exit, and reduces the precision management and control of the PCB product, which is prone to produce the production of the other side patching of the PCB before the glue of one side is fully solidified, reduces the production quality of SMT, and makes it difficult to trace. In addition, personnel carrying has the risk of damaging the product, and personnel carrying is prone to knock the Magazine box, reducing the service life of the Magazine box. SUMMARY

[0006] To this end, the embodiment of the present application provides an intelligent warehousing system and method applied to an SMT patch production line, to solve the problem of the turnover mode of the Magazine material box relying on human resources in the prior art, reduce the efficiency of warehouse entry and exit and the production quality of SMT, and reduce the service life of the Magazine material box.

[0007] To solve the above problems, the embodiment of the present application provides an intelligent warehousing system applied to an SMT patch production line, the patch production line comprising a first patch production line and a second patch production line, the intelligent warehousing system comprising: a carrying AGV, a transfer platform, an upper computer module, a warehouse entry and exit AGV, and a warehousing module.

[0008] The carrying AGV comprises a first carrying AGV and a second carrying AGV,

[0009] The first carrying AGV is configured to receive a first carrying instruction sent by the first patch production line, and carry a first Magazine material box at the end of the first patch production line to a buffer position of the first transfer platform; the second carrying AGV is configured to receive a second carrying instruction sent by the second transfer platform, and carry a second Magazine material box on the second transfer platform to the head of the second patch production line.

[0010] The transfer platform comprises a first transfer platform and a second transfer platform, the first transfer platform is configured to receive the first Magazine material box, send a warehouse entry request to the warehouse entry and exit AGV, and send a request for obtaining a storage position to the upper computer module; the second transfer platform is configured to receive the second Magazine material box, scan a code to confirm the receipt of the second Magazine material box, send feedback information to the upper computer module, and send a second carrying instruction to the second carrying AGV.

[0011] The upper computer module is configured to receive binding information of a PCB barcode and a first Magazine material box barcode on the first patch production line, receive a request for obtaining a storage position sent by the first transfer platform, determine a storage position of the first Magazine material box in the warehousing module based on a preset warehouse entry and exit rule, and send corresponding storage position information to the warehouse entry and exit AGV; the upper computer module is also configured to send corresponding storage position information of a second Magazine material box that needs to be removed from the warehousing module to the warehouse entry and exit AGV based on the preset warehouse entry and exit rule, send a warehouse exit instruction to the warehouse entry and exit AGV, receive feedback information sent by the second transfer platform, and unbind the second Magazine material box and the corresponding storage position information.

[0012] The in-out warehouse AGV is used for receiving a warehouse-in request of the first transfer platform, obtaining a first Magazine box corresponding to an output of the first transfer platform, and sending the first Magazine box into a corresponding storage position according to storage position information corresponding to the first Magazine box sent by the upper computer module; the in-out warehouse AGV is also used for receiving a warehouse-out instruction of the upper computer module, and obtaining a corresponding second Magazine box according to storage position information corresponding to the second Magazine box sent by the upper computer module, and moving the second Magazine box to the second transfer platform.

[0013] The storage module is used for storing the first Magazine box and the second Magazine box.

[0014] In an embodiment of the present application, the first conveying device is arranged on the first carrying AGV and the second carrying AGV, and the transmission direction of the first conveying device is bidirectional.

[0015] In an embodiment of the present application, the second conveying device is arranged on the first transfer platform and the second transfer platform, and the transmission direction of the second conveying device is unidirectional.

[0016] In an embodiment of the present application, the first end of the first patch production line is provided with a first code scanning device, which is used for scanning a PCB barcode and a first Magazine box barcode, binding information, and sending binding information of the PCB barcode and the first Magazine box barcode to the upper computer module.

[0017] In an embodiment of the present application, the first transfer platform is provided with a second code scanning device, which is used for scanning the first Magazine box barcode to confirm that the first Magazine box enters the buffer position of the first transfer platform.

[0018] In an embodiment of the present application, the second transfer platform is provided with a third code scanning device, which is used for scanning a second Magazine box barcode to confirm that the second Magazine box is received, and sending feedback information of the received second Magazine box to the upper computer module.

[0019] In an embodiment of the present application, the first end of the first patch production line is provided with a first code scanning device, which is used for scanning a PCB barcode and a first Magazine box barcode, binding information, and sending binding information of the PCB barcode and the first Magazine box barcode to the upper computer module.

[0020] In an embodiment of the present application, the storage module includes two groups of symmetrically arranged storage sub-modules, each of which includes at least one layer of storage positions, and each layer of storage positions includes a plurality of storage positions, and the in-out warehouse channel for the in-out warehouse AGV to walk and turn is formed between the two groups of storage sub-modules.

[0021] In an embodiment of the present application, the preset in-out warehouse rule comprises:

[0022] The in-warehouse rule is that the first Magazine magazine is sequentially in-warehouse from the storage sub-module X on one side, starting from the lowermost storage position, and then sequentially in-warehouse after filling the lowermost storage position and rising one layer;

[0023] When the in-warehouse quantity of the first Magazine magazine in the storage sub-module X reaches the preset quantity N, the in-warehouse process of the first Magazine magazine in the storage sub-module Y is performed, and the in-warehouse sequence and the storage position of the first Magazine magazine in the storage sub-module Y are opposite to those in the storage sub-module X. The preset quantity N satisfies:

[0024] Wherein, [] represents the integer operation; T represents the solidification time of the PCB one-side patch glue; k represents the adjustment coefficient, which is used to adjust the inaccuracy of the solidification time caused by the glue solidification and the like; represents the average value of the PCB one-side patch time t; n represents the quantity of PCBs that can be stored in one Magazine magazine;

[0025] When the in-warehouse quantity of the first Magazine magazine in the storage sub-module Y reaches the preset quantity N, the in-warehouse process of the first Magazine magazine in the storage sub-module X is performed again, and the cycle is repeated until the first Magazine magazine stops supplying;

[0026] The out-warehouse rule is that after the in-warehouse process of one first Magazine magazine is completed, if the opposite side of the storage position of the first Magazine magazine has a second Magazine magazine, the second Magazine magazine in the opposite side of the storage position is out-warehouse; otherwise, the out-warehouse is abandoned.

[0027] The embodiment of the present application also provides an intelligent storage method applied to an SMT patch production line, which adopts the intelligent storage system applied to the SMT patch production line and comprises the following steps:

[0028] The host computer module receives the binding information of the PCB bar code and the first Magazine magazine bar code on the first patch production line;

[0029] The first carrying AGV receives the first carrying instruction sent by the first patch production line, carries the first Magazine magazine output at the end of the first patch production line to the buffer position of the first transfer platform;

[0030] The first transfer platform receives the first Magazine magazine, sends an in-warehouse request to the in-out warehouse AGV, and sends a request for obtaining a storage position to the host computer module.

[0031] The host computer module receives a request for obtaining a storage position sent by the first transfer platform, determines a storage position of the first magazine box in the storage module based on a preset in-out warehouse rule, and sends corresponding storage position information to the in-out warehouse AGV;

[0032] The in-out warehouse AGV receives the in-out warehouse request of the first transfer platform, obtains the first magazine box output by the first transfer platform, and sends the first magazine box into the corresponding storage position according to the storage position information of the first magazine box sent by the host computer module;

[0033] The host computer module sends the storage position information of the second magazine box that needs to be removed from the storage module to the in-out warehouse AGV based on the preset in-out warehouse rule, and sends an out-of-warehouse instruction to the in-out warehouse AGV;

[0034] The in-out warehouse AGV receives the out-of-warehouse instruction of the host computer module, and removes the second magazine box to the second transfer platform according to the storage position information of the second magazine box sent by the host computer module;

[0035] The second transfer platform receives the second magazine box, confirms the receipt of the second magazine box by scanning the code, and sends feedback information to the host computer module and a second carrying instruction to the second carrying AGV. The host computer module receives the feedback information sent by the second transfer platform, and unbinds the second magazine box and the corresponding storage position information;

[0036] The second carrying AGV receives the second carrying instruction, and carries the second magazine box to the head end of the second patch production line.

[0037] Beneficial effects: The intelligent warehouse system applied to the SMT patch production line provided by the application adopts a carrying AGV to transfer and transport the Magazine material box between the patch production line and the transfer platform, and the in-out warehouse AGV completes the in-out warehouse of the Magazine material box based on preset in-out warehouse rules, and the material is transferred between the transfer platform and the storage module. Therefore, on the one hand, the turnover time of the Magazine material box is reduced, and the in-out warehouse efficiency of the Magazine material box is improved. On the other hand, the movement paths of the carrying AGV and the in-out warehouse AGV do not interfere with each other, reducing the difficulty of path planning and task scheduling, avoiding the problem of parking and waiting or detouring to avoid obstacles of the carrying AGV and the in-out warehouse AGV due to path interference, and further improving the in-out warehouse efficiency of the Magazine material box. Moreover, by obtaining the binding information between the PCB barcode and the Magazine material box barcode through the host computer module, the whole process of the PCB from the first patch production line output, warehousing, de-warehousing and finally entering the second patch production line for processing can be accurately managed, avoiding the situation that the PCB is produced for patching on the other side before the glue on one side is fully solidified, which can not only improve the production quality of SMT, but also reduce the difficulty of traceability. In addition, the Magazine material box is avoided from being carried by personnel during the whole in-out warehouse process, which can also reduce the risk of damage to the Magazine material box due to collision. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the embodiments will be briefly described below. The features and advantages of the application can be more clearly understood by referring to the drawings. The drawings are schematic and should not be understood as any limitation on the application. Those skilled in the art can obtain other drawings according to these drawings without creative labor. Among them:

[0039] Figure 1 It is a block diagram of the intelligent warehouse system applied to the SMT patch production line provided in the embodiments;

[0040] Figure 2 It is a flowchart of the intelligent warehouse method applied to the SMT patch production line provided in the embodiments.

[0041] Description of the drawings: 11, first patch production line; 12, second patch production line; 21, first carrying AGV; 22, second carrying AGV; 31, first transfer platform; 32, second transfer platform; 40, host computer module; 50, in-out warehouse AGV; 60, warehouse module. DETAILED DESCRIPTION

[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0043] In order to solve the problem that the turnover mode of the Magazine box depends on human resources in the prior art, and the efficiency of the Magazine box in and out of the warehouse and the SMT production quality are reduced, the present embodiment provides an intelligent warehousing system and method applied to an SMT patch production line. Figure 1 As shown in the figure, the intelligent warehousing system applied to the SMT patch production line provided by the present embodiment comprises a carrying AGV, a transfer platform, an upper computer module 40, an in-and-out warehouse AGV 50 and a warehousing module 60. The carrying AGV comprises a first carrying AGV 21 and a second carrying AGV 22, and the transfer platform comprises a first transfer platform 31 and a second transfer platform 32.

[0044] Specifically, the first carrying AGV 21 is used for receiving a first carrying instruction sent by the first patch production line 11, and carrying the first Magazine box at the end of the first patch production line 11 to the buffer position of the first transfer platform 31. The second carrying AGV 22 is used for receiving a second carrying instruction sent by the second transfer platform 32, and carrying the second Magazine box to the head end of the second patch production line 12. Specifically, the patch production line comprises a PCB feeding machine at the head end and a PCB collecting machine at the end. Therefore, the first carrying AGV 21 obtains the first carrying instruction and the first Magazine box from the PCB collecting machine at the end of the first patch production line. And the second carrying AGV 22 carries the second Magazine box to the PCB feeding machine at the head end of the second patch production line 12.

[0045] The first transfer platform 31 is used for receiving the first Magazine box, sending a warehouse entry request to the in-and-out warehouse AGV 50 and sending a request for obtaining a storage position to the upper computer module 40. The second transfer platform 32 is used for receiving the second Magazine box, scanning the code to confirm the reception of the second Magazine box, sending feedback information to the upper computer module 40 and sending a second carrying instruction to the second carrying AGV 22.

[0046] 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, and the request for obtaining the storage position sent by the first transfer platform 31, determine the storage position of the first magazine box in the storage module 60 based on the preset storage and retrieval rule, and send the corresponding storage position information to the storage and retrieval AGV 50. The host computer module 40 is also configured to send the corresponding storage position information of the second magazine box that needs to be removed from the storage module 60 to the storage and retrieval AGV 50 based on the preset storage and retrieval rule, send the storage and retrieval instruction to the storage and retrieval AGV 50, receive the feedback information sent by the second transfer platform 32, and unbind the second magazine box and the corresponding storage position information. Generally, the host computer module 40 includes a host computer body, a server, a memory, a processor, and a communication unit.

[0047] The storage and retrieval AGV 50 is configured to receive the storage request of the first transfer platform 31, obtain the corresponding first magazine box, and send the first magazine box to the corresponding storage position according to the storage position information of the first magazine box sent by the host computer module 40. The storage and retrieval AGV 50 is also configured to receive the storage and retrieval instruction of the host computer module 40, and move the second magazine box to the second transfer platform 32 according to the storage position information of the second magazine box sent by the host computer module 40.

[0048] The storage module 60 is configured to store the first magazine box and the second magazine box. In the embodiment, the storage module 60 includes two groups of symmetrically arranged storage submodules, and the two groups of storage submodules are arranged opposite to each other. The storage and retrieval channel for the storage and retrieval AGV 50 to walk and turn is formed between the two groups of storage submodules, so that the driving path of the storage and retrieval AGV 50 is simple, and the planning difficulty is reduced. Each storage submodule includes at least one layer of storage positions, and each layer of storage positions includes a plurality of storage positions. In actual application, each storage submodule is assembled by a plurality of storage units, and each storage unit includes a plurality of storage positions. Generally, according to the storage demand, each storage unit generally has 3-4 layers of storage positions, and each layer of storage positions has 3-4 storage positions. In actual application, the storage positions in the storage unit can be reasonably adjusted due to the influence of space limitation, magazine box size, and production constraints.

[0049] In the embodiment, in order to make a detailed description of the technical solutions, it is assumed that the patch production line includes a first patch production line 11 and a second patch production line 12. The first patch production line 11 is used for patch processing on one side of the PCB. The second patch production line 12 is used for patch processing on the other side of the PCB. In actual application, the number of patch production lines can be greater than two. Of course, the first patch production line 11 and the second patch production line 12 can also be one patch production line, and different patch processes can be set 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.

[0050] In the embodiment, the Magazine magazine defined between the first patch production line 11 and the storage module 60 for completing the warehousing process and storing the PCB semi-finished product with one side patch completed is the first Magazine magazine; the glue on the PCB stored in the first Magazine magazine has not completely solidified. The Magazine magazine defined between the storage module 60 and the second patch production line 12 for completing the warehousing process and storing the PCB semi-finished product with one side patch completed is the second Magazine magazine. The carrying AGV between the first patch production line 11 and the first transfer platform 31 is defined as the first carrying AGV 21; the carrying AGV between the second transfer platform 32 and the second patch production line 12 is defined as the second carrying AGV 22. In addition, the carrying AGV here can be replaced by an automated mobile device with carrying function, such as IGV, AMR and the like. Similarly, the in-out warehouse AGV in the embodiment can also be replaced by an automated mobile device with carrying function. In order to cope with the in-out warehouse problem of the stereoscopic warehouse, the in-out warehouse AGV should also be provided with a lifting mechanism to make the carrying device of the in-out warehouse AGV have lifting function.

[0051] Specifically, the first patch production line 11 performs patch processing on the first side of the PCB, and transports the PCB after patch processing to the first Magazine magazine of the PCB collecting machine at the end of the first patch production line 11. The first scanning code device on the PCB collecting machine at the end of the first patch production line 11 scans the PCB bar code and the first Magazine magazine bar code, completes the information binding of the PCB bar code and the first Magazine magazine bar code, and transmits the binding information to the upper computer module 40. The binding information also includes line information, time information, etc. Of course, the bar code in the embodiment is only used as an identifier of the basic information of the PCB or the Magazine magazine, and the identification function should be equivalent to other possible identifier types, such as two-dimensional code, mark picture, identifier or mark number, etc.

[0052] When the first Magazine magazine is filled with a preset number of PCBs, the PCB receiving machine at the end of the first SMT production line 11 sends a first transfer instruction to the first transfer AGV 21.

[0053] Further, the first transfer AGV 21 receives the first transfer instruction from the PCB receiving machine of the first SMT production line 11, moves to the output position of the PCB receiving machine of the first SMT production line 11, and receives the first Magazine magazine delivered by the PCB receiving machine of the first SMT production line 11. Then, the first transfer AGV 21 moves to the input docking position of the first transfer platform 31, and the first Magazine magazine is transferred to the buffer position of the first transfer platform 31.

[0054] Further, the first transfer platform 31 is provided with a second code scanning device, which scans the barcode of the first Magazine magazine to confirm that the first Magazine magazine enters the buffer position of the first transfer platform 31, and sends a warehouse entry request to the warehouse AGV 50 and a request for obtaining a storage position to the host computer module 40.

[0055] Further, the host computer module 40 receives the request for obtaining a storage position sent by the first transfer platform 31, determines the storage position of the first Magazine magazine in the storage module 60 based on the preset warehouse entry and exit rules, and sends the corresponding storage position information to the warehouse AGV 50, wherein the storage position information includes the storage position number, the storage position location, and the height information.

[0056] Further, the warehouse AGV 50 receives the warehouse entry request from the first transfer platform 31, moves to the output docking position of the first transfer platform 31, and docks with the buffer position of the first transfer platform 31 to obtain the corresponding first Magazine magazine. According to the storage position information of the first Magazine magazine sent by the host computer module 40, the warehouse AGV 50 moves to the corresponding position and sends the first Magazine magazine into the corresponding storage position. Then, the corresponding storage position of the storage module 60 scans the barcode of the first Magazine magazine to confirm the entry of the first Magazine magazine.

[0057] Further, the host computer module 40 sends the storage position information of the second Magazine magazine that needs to be removed from the storage module 60 to the warehouse AGV 50 based on the preset warehouse entry and exit rules, and sends a warehouse exit instruction to the warehouse AGV 50.

[0058] Further, the in-out warehouse AGV 50 receives the out-of-warehouse instruction of the upper computer module 40, and according to the storage position information corresponding to the second Magazine box sent by the upper computer module 40, moves the second Magazine box to the input docking position of the second transfer platform 32. The in-out warehouse AGV 50 docks with the buffer position of the second transfer platform 32, and moves the second Magazine box to the second transfer platform 32.

[0059] Further, the second transfer platform 32 receives the second Magazine box, scans the barcode of the second Magazine box through the third code scanning device arranged on the second transfer platform 32, confirms the reception of the second Magazine box through code scanning, and sends feedback information to the upper computer module 40. The upper computer module 40 completes the unbinding of the second Magazine box and the corresponding storage position information. Then the second transfer platform 32 sends a second carrying instruction to the second carrying AGV 22.

[0060] Further, the second carrying AGV 22 receives the second carrying instruction, moves to the output docking position of the second transfer platform 32, and docks with the buffer position of the second transfer platform 32, and carries the second Magazine box to the PCB board feeding machine of the second SMT production line 12.

[0061] The carrying AGV is used to transfer the material Magazine box of the PCB between the SMT production line and the transfer platform, and the in-out warehouse AGV completes the in-out warehouse of the Magazine box based on the preset in-out warehouse rule, and transfers the material between the transfer platform and the storage module. Therefore, the turnover time of the Magazine box is reduced, and the in-out warehouse turnover efficiency of the Magazine box is improved. In order to improve the safety during the transportation of the carrying AGV, the first conveying device is arranged on the carrying AGV to input, temporarily store and output the Magazine box.

[0062] In order to prevent the risks such as dumping and bumping during the movement of the carrying AGV, the protective device is arranged on at least three sides of the carrying AGV, so that the carrying AGV has only one entrance and exit, which requires that the first conveying device can be bidirectional, so as to dock with the SMT production line and the transfer platform respectively to input and output the Magazine box. That is, the first carrying AGV 21 and the second carrying AGV 22 are both provided with the first conveying device, and the transmission direction of the first conveying device is bidirectional. In this case, the Magazine box can be prevented from dumping and bumping, and the service life of the Magazine box is increased.

[0063] For reference, the transfer platform is usually fixedly arranged at a position, so that the Magazine box cached on the transfer platform does not need to consider the safety risk in the movement process. Therefore, in the embodiment, the second conveying device is arranged on the transfer platform, and the transmission direction of the second conveying device is set as unidirectional. Thus, the Magazine box is unidirectionally conveyed on the second conveying device, and the carrying AGV and the warehouse-in / out AGV 50 take / deliver the Magazine box at two ends of the second conveying device, respectively. That is, the first transfer platform 31 and the second transfer platform 32 are provided with the second conveying device with the unidirectional transmission direction. In this arrangement, the movement paths of the carrying AGV and the warehouse-in / out AGV 50 do not interfere with each other, which reduces the difficulty of path planning and task scheduling, avoids the problem of parking and waiting or detouring to avoid obstacles of the carrying AGV and the warehouse-in / out AGV 50 due to path interference, and further improves the warehouse-in / out efficiency of the Magazine box.

[0064] Further, the PCB feeding machine of the second SMT production line 12 receives the second Magazine box, the fourth code scanning device arranged at the head end of the second SMT production line 12 scans the second Magazine box to obtain the PCB information corresponding to the second Magazine box, and then sequentially moves the PCBs in the second Magazine box to the upstream conveying position of the second SMT production line 12 to perform SMT on the second surface of the PCB according to the corresponding SMT requirements.

[0065] The above-mentioned preset warehouse-in / out rules will be described in detail in combination with the operation process of the warehouse-in / out AGV 50.

[0066] Firstly, the warehouse-in rules are described.

[0067] The warehouse-in / out AGV 50 continuously obtains the first Magazine box supplied by the first SMT production line 11 and loaded with the PCBs on which the first surface SMT is completed, and transports the first Magazine box to the storage module for warehouse-in storage.

[0068] Firstly, the first Magazine box is sequentially warehouse-in from the storage sub-module X on one side, and is preferentially warehouse-in from the lowermost storage position; when the lowermost storage position is filled, the first Magazine box is sequentially warehouse-in from the next layer. Here, the sequential warehouse-in should be understood as that the continuously supplied first Magazine box is sequentially warehouse-in according to the time sequence of supply. Of course, for the sequential warehouse-in of the embodiment, a preferred mode is that the first Magazine box is sequentially warehouse-in according to the time sequence of supply, and the storage positions of adjacent two warehouse-in operations are adjacent.

[0069] When the number of the first Magazine magazine in the storage sub-module X reaches the preset number N, the storage in the other side of the storage sub-module Y is performed. And the storage sequence and storage position of the first Magazine magazine in the other side of the storage sub-module Y are opposite to the storage sequence and storage position of the first Magazine magazine in the storage sub-module X. The preset number N satisfies the following formula:

[0070] Wherein, [] represents the integer operation; T represents the solidification time of the PCB one side SMT glue; k represents the adjustment coefficient, which is used to adjust the inaccuracy of the solidification time caused by the solidification of the glue and other reasons; represents the average value of the PCB one side SMT time t; n represents the number of PCBs that can be stored in a Magazine magazine.

[0071] Finally, when the number of the first Magazine magazine in the storage sub-module Y reaches the preset number N, the storage process of the first Magazine magazine in the storage sub-module X is performed again and the cycle is repeated until the first Magazine magazine stops supplying.

[0072] Secondly, the storage rule is explained:

[0073] After completing the storage process of a first Magazine magazine, if the storage position of the first Magazine magazine has a second Magazine magazine opposite to the storage position, the second Magazine magazine in the opposite storage position is discharged; otherwise, the discharge is abandoned. Specifically, after the storage position x of the storage sub-module X completes the storage of the first Magazine magazine, it is necessary to judge whether the storage position y of the opposite storage sub-module Y has a Magazine magazine. One case is that there is no Magazine magazine. The reason for this case is that the number of the stored first Magazine magazine has not reached the preset number N, that is, the glue on the PCB in the first first Magazine magazine has not completely solidified, and in this case, the discharge is not needed. Another case is that the storage position y of the opposite storage sub-module Y has a Magazine magazine, and the glue on the PCB stored in the Magazine magazine in the storage position y has completely solidified, and then the storage AGV 50 performs the discharge operation on the second Magazine magazine in the storage position y of the storage sub-module Y by rotating 180°.

[0074] Since the warehouse-in and warehouse-out are in the same layer, the warehouse-in and warehouse-out AGV 50 does not need to perform the lifting operation (the lifting device is not adjusted) and the shifting and docking after completing the warehouse-in of the first Magazine box, and only needs to rotate 180° to perform the warehouse-out of the second Magazine box. Therefore, the warehouse-in and warehouse-out time can be greatly improved, the disordered warehouse-in and warehouse-out order can be avoided, and the warehouse-in and warehouse-out efficiency can be improved.

[0075] As shown in Figure 2 The following describes a storage method of the intelligent storage system applied to the SMT patch production line based on the application of the embodiment:

[0076] S1: The host computer module 40 receives the binding information of the PCB barcode on the first patch production line 11 and the first Magazine box barcode;

[0077] S2: The first carrying AGV 21 receives the first carrying instruction sent by the first patch production line 11, and carries the first Magazine box output at the end of the first patch production line 11 to the buffer position of the first transfer platform 31;

[0078] S3: The first transfer platform 31 receives the first Magazine box, sends a warehouse-in request to the warehouse-in and warehouse-out AGV 50, and sends a request for obtaining a storage position to the host computer module 40;

[0079] S4: The host computer module 40 receives the request for obtaining a storage position sent by the first transfer platform 31, determines the storage position of the first Magazine box in the storage module 60 based on the preset warehouse-in and warehouse-out rule, and sends the corresponding storage position information to the warehouse-in and warehouse-out AGV 50;

[0080] S5: The warehouse-in and warehouse-out AGV 50 receives the warehouse-in request of the first transfer platform 31, obtains the first Magazine box output by the first transfer platform 31, and according to the storage position information of the first Magazine box sent by the host computer module 40, sends the first Magazine box into the corresponding storage position;

[0081] S6: The host computer module 40 sends the storage position information of the second Magazine box to be removed from the storage module 60 to the warehouse-in and warehouse-out AGV 50 based on the preset warehouse-in and warehouse-out rule, and sends a warehouse-out instruction to the warehouse-in and warehouse-out AGV 50;

[0082] S7: The warehouse-in and warehouse-out AGV 50 receives the warehouse-out instruction of the host computer module 40, and according to the storage position information of the second Magazine box sent by the host computer module 40, removes the second Magazine box to the second transfer platform 32;

[0083] S8: The second transfer platform 32 receives the second magazine, scans the code to confirm the receipt of the second magazine, and sends feedback information to the host computer module 40 and sends a second carrying instruction to the second carrying AGV 22. The host computer module 40 receives the feedback information sent by the second transfer platform 32, and unbinds the second magazine from the corresponding storage position information;

[0084] S9: The second carrying AGV 22 receives the second carrying instruction, and carries the second magazine to the first end of the second patch production line 12.

[0085] Obviously, the above embodiments are only examples for clear illustration, and are not a limitation on the embodiments. Based on the above description, other different forms of changes or variations can be made by those of ordinary skill in the art. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An intelligent warehousing system applied to an SMT (Surface Mount Technology) assembly line, wherein the assembly line includes a first assembly line and a second assembly line, characterized in that, The intelligent warehousing system includes: handling AGVs, a transfer platform, a host computer module, inbound and outbound AGVs, and a warehousing module; The transport AGV includes a first transport AGV and a second transport AGV. The first transport AGV is configured to receive a first transport instruction sent by the first surface mount production line and transport the first magazine box at the end of the first surface mount production line to the buffer 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 beginning of the second surface mount 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 an inbound request to the inbound / outbound AGV, and send a request to the host computer module to obtain the storage location. The second transfer platform 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, and send a second handling instruction to the second handling AGV. The host computer module is configured to receive the binding information between the PCB barcode and the first Magazine box barcode on the first surface mount production line, and to receive a request from the first transfer platform to obtain the storage location. Based on preset inbound and outbound rules, it determines the storage location of the first Magazine box in the storage module and sends the corresponding storage location information to the inbound / outbound AGV. The host computer module is also configured to send the storage location information of the second Magazine box that needs to be removed from the storage module to the inbound / outbound AGV based on preset inbound / outbound rules, send an outbound instruction to the inbound / outbound AGV, receive feedback information from the second transfer platform, and unbind the second Magazine box from the corresponding storage location information. The inbound / outbound AGV is used to receive the inbound request from the first transfer platform, obtain the first magazine box output by the first transfer platform, and send the first magazine box into the corresponding storage location according to the storage location information of the first magazine box sent by the host computer module; the inbound / outbound AGV is also used to receive the outbound instruction from the host computer module, obtain the corresponding second magazine box according to the storage location information of the second magazine box sent by the host computer module, and transfer it to the second transfer platform; The storage module is used to store the first Magazine box and the second Magazine box; The preset inbound rules include: Inbound rules: The first Magazine box is entered into the warehouse sequentially from the storage sub-module X on one side. The entry begins from the bottom storage compartment. After the bottom storage compartment is filled, the next layer is moved up and the entries are made sequentially. Once the quantity of the first Magazine box in storage submodule X reaches a preset quantity N, it will then be stored in the other storage submodule Y, ensuring that the order and storage location of the first Magazine box in storage submodule Y are consistent with those in storage submodule X; preset quantity N: Where [] represents the integer operation; T represents the curing time of the adhesive on one side of the PCB; k represents the adjustment coefficient, which is used to adjust for inaccurate curing time caused by adhesive curing and other factors. This represents the average placement time t for one side of the PCB; n represents the number of PCBs that can be stored in a Magazine box. Once the quantity of the first Magazine box in the storage submodule Y reaches the preset quantity N, the process of storing the first Magazine box in the storage submodule X will be executed again and repeated until the supply of the first Magazine box stops. Outbound rules: After completing the inbound process of a first Magazine box, if there is a second Magazine box in the storage compartment opposite to the storage compartment of the first Magazine box, then the second Magazine box in the storage compartment opposite to the storage compartment will be outbound; otherwise, the outbound process will be abandoned.

2. The intelligent warehousing system applied to SMT assembly lines according to claim 1, characterized in that, Both the first and second transport AGVs are equipped with a first conveying device, and the conveying direction of the first conveying device is set to bidirectional.

3. The intelligent warehousing system applied to SMT assembly lines according to claim 1, characterized in that, The first transfer platform and the second transfer platform are equipped with a second conveying device, and the conveying direction of the second conveying device is set to unidirectional.

4. The intelligent warehousing system applied to SMT assembly lines according to claim 1, characterized in that, The first chip assembly line is equipped with a first barcode scanning device at the end, which is used to scan the PCB barcode and the first Magazine box barcode, bind the information, and send the binding information of the PCB barcode and the first Magazine box barcode to the host computer module.

5. The intelligent warehousing system applied to SMT assembly lines according to claim 1, characterized in that, The first transfer platform is equipped with a second barcode scanning device, which is used to scan the barcode of the first Magazine box to confirm that the first Magazine box has entered the buffer position of the first transfer platform.

6. The intelligent warehousing system applied to an SMT assembly line according to claim 1, characterized in that, The second transfer platform is equipped with a third barcode scanning device, which is used to scan the barcode of the second Magazine box to confirm receipt of the second Magazine box and send feedback information of receiving the second Magazine box to the host computer module.

7. The intelligent warehousing system applied to an SMT assembly line according to claim 1, characterized in that, The first end of the second surface mount production line is equipped with a fourth barcode scanner, which is used to obtain the PCB information corresponding to the second Magazine box.

8. The intelligent warehousing system applied to an SMT assembly line according to claim 1, characterized in that, The warehousing module includes two symmetrically arranged warehousing sub-modules. Each warehousing sub-module includes at least one layer of storage space, and each layer of storage space includes multiple storage compartments. An inbound / outbound channel is formed between the two warehousing sub-modules for the movement and turning of the AGVs.

9. A smart warehousing method applied to an SMT (Surface Mount Technology) assembly line, characterized in that, The intelligent warehousing system applied to an SMT assembly line according to any one of claims 1 to 8 includes: The host computer module receives the binding information between the PCB barcode and the first Magazine box barcode on the first surface mount production line; The first transport AGV receives the first transport instruction sent by the first surface mount production line and transports the first Magazine box output from the end of the first surface mount production line to the buffer position of the first transfer platform; The first transfer platform receives the first Magazine box and sends an inbound request to the inbound / outbound AGV and a request to the host computer module to obtain the storage location. The host computer module receives a request from the first transit platform to obtain the storage location, determines the storage location of the first Magazine box in the storage module based on the preset inbound and outbound rules, and sends the corresponding storage location information to the inbound and outbound AGV. The inbound / outbound AGV receives the inbound request from the first transfer platform, obtains the first Magazine box output by the first transfer platform, and sends the first Magazine box into the corresponding storage location according to the storage location information of the first Magazine box sent by the host computer module. Based on preset inbound and outbound rules, the host computer module sends the storage location information of the second Magazine box that needs to be moved out of the storage module to the inbound and outbound AGV, and sends an outbound instruction to the inbound and outbound AGV. The AGV receives the outbound instruction from the host computer module and, based on the storage location information corresponding to the second Magazine box sent by the host computer module, transfers 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, and sends feedback information to the host computer module and sends the second handling instruction to the second handling 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 box to the beginning of the second SMT production line.

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