Non-intervention Mes tracing method and device

Abstract

The invention relates to the technical field of intelligent manufacturing and industrial Internet of Things, and particularly provides a non-intervention Mes tracing method and device, and the method comprises the following steps: S1, firstly, engraving a unique SN on each circuit board unit of a PCB jointed board through a laser engraving machine; s2, in the laser etching process, the SN data are uploaded to an MES server according to the SOP sequence; s3, reading and binding the SN; s4, the industrial camera is used for monitoring the production process in real time, and a light supplementing lamp is adjusted or an alarm is given out according to the actual situation; s5, carrying out board splitting treatment; and S6, the MES system is combined with a wrong material prevention system to ensure that all used materials meet specification requirements, and the Mes system traces the product according to the SN number. Compared with the prior art, the method can improve the production efficiency and the product quality traceability, and is suitable for the requirements of the modern electronic manufacturing industry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent manufacturing and industrial Internet of Things, and particularly provides a non-intervention Mes tracing method and device. BACKGROUND

[0002] At present, the electronic manufacturing field develops rapidly, and panel design, as a key technology, is widely used in the manufacturing process of printed circuit boards (PCB) to effectively reduce production costs. However, in the SMT (Surface Mount Technology) patch process, in order to realize automatic optical detection (AOI), it is usually necessary to set SN code and PPID bar code on the PCB panel to facilitate tracking and management. The existing process requires manual binding of the SN code and the PPID of each independent circuit board unit after the SMT process is completed, which increases the process complexity and the efficiency of manual operation.

[0003] In the PCB manufacturing industry, how to efficiently integrate various sensors and technical means to achieve better production management and quality tracing is a problem to be solved. At present, production data tracing in the manufacturing industry mainly relies on manual input or single sensor collection, which has some shortcomings:

[0004] (1) Highly dependent on manual intervention: the SN and PPID bar code binding of the PCB panel needs to be completed by manual operation, which is not only inefficient, but also prone to errors.

[0005] (2) Forming a data island: PCB production information may be stored in different systems, and cross-department coordination is required when tracing, which is time-consuming and laborious.

[0006] (3) Poor environmental adaptability: the traditional code scanning equipment has a high failure rate in reading under complex environments such as light changes and object shielding, which greatly affects the accuracy and efficiency of data collection.

[0007] Although the existing technology attempts to use two-dimensional codes or laser-engraved bar codes to improve tracing efficiency, these methods still require some degree of manual intervention and cannot achieve truly non-interventional fully automated tracing. Therefore, developing a new technology that can overcome the above challenges and achieve efficient, accurate and non-interventional fully automated tracing system is of great importance to the further development of the PCB manufacturing industry. SUMMARY

[0008] The present application is aimed at the shortcomings of the prior art, and provides a non-interventional Mes tracing method with strong practicality.

[0009] The further technical task of the present application is to provide a non-interventional Mes tracing device with reasonable design and safety.

[0010] The technical scheme adopted by the present application to solve its technical problems is:

[0011] An intervention-free Mes traceability method has the following steps:

[0012] S1, first use a laser engraving machine to engrave a unique SN on each circuit board unit of the PCB panel;

[0013] S2, during the laser engraving process, upload the SN data to the MES server according to the SOP sequence;

[0014] S3, SN reading and binding;

[0015] S4, use an industrial camera to monitor the production process in real time, and adjust the fill light or issue an alarm according to the actual situation;

[0016] S5, panel processing;

[0017] S6, the MES system combines with the error-proof material system to ensure that all materials used meet the specification requirements, and the Mes system traces the product according to the SN number.

[0018] Further, in step S3, in the SMT process, the SN on the PCB panel is read by a barcode reading device, and the remaining SN is obtained from the MES server by using an AOI optical detection device, and automatic binding is completed.

[0019] Further, in step S5, after the SMT process is completed, the PCB panel is cut to form independent circuit board units, and the SN of the circuit board unit can be directly used in the subsequent process.

[0020] Further, in the error-proof material system, it includes:

[0021] (1) material pre-verification stage;

[0022] (2) RFID scans the material on the shelf, and verifies the dimension;

[0023] (3) real-time monitoring;

[0024] (4) abnormal processing mechanism.

[0025] Further, in step (1), when the material is put into the warehouse, the unique RFID tag is bound with the material code and batch number in the MES, and is associated with the BOM of the corresponding PCB model;

[0026] After the operator scans the work order number, the system automatically retrieves the station table of the work order.

[0027] Further, in step (2), the verification dimension includes: consistency of material code compared with the station table, batch validity period, verification in the production process and verification before SMT mounting.

[0028] Further, in step (3), the remaining amount of the tray is monitored by the weight sensor during the patch machine reloading, and when the actual consumption rate deviates from the theoretical value by >15%, a review is triggered.

[0029] Further, in step (4), the response is graded:

[0030] 1) Model mismatch: immediately stop and lock the device;

[0031] 2) Batch mismatch: prompt for confirmation and record the deviation;

[0032] 3) Reverse polarity: automatically correct the mounting angle.

[0033] An intervention-free Mes traceability device, comprising: at least one memory and at least one processor;

[0034] The at least one memory is used to store machine-readable programs;

[0035] The at least one processor is used to call the machine-readable programs and execute an intervention-free Mes traceability method.

[0036] Compared with the prior art, the intervention-free Mes traceability method and device of the present application has the following outstanding beneficial effects:

[0037] The present application integrates various advanced sensing technologies and automated equipment, not only simplifying the barcode management process of PCB production, but also improving production efficiency and product quality traceability capability, suitable for the needs of modern electronic manufacturing industry. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0039] Figure 1 It is a flowchart of an intervention-free Mes traceability method. DETAILED DESCRIPTION

[0040] In order to make the person skilled in the art better understand the scheme of the present application, the present application will be further described in detail below in combination with specific implementation manners. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] A preferred embodiment is given below:

[0042] As shown in the figure, the non-interventional Mes traceability method in this embodiment has the following steps, Figure 1

[0043] S1, first use a laser engraving machine to engrave a unique SN on each circuit board unit of the PCB panel;

[0044] S2, during the laser engraving process, upload the SN data to the MES server according to the SOP sequence;

[0045] S3, SN reading and binding;

[0046] In the SMT process, the SN on the PCB panel is read by a barcode reading device, and the remaining SN is obtained from the MES server using an AOI optical detection device, and the automatic binding is completed.

[0047] S4, use an industrial camera to monitor the production process in real time, collect environmental brightness, material state and other information, and adjust the fill light or issue an alarm according to the actual situation.

[0048] S5, board processing;

[0049] After the SMT process, the PCB panel is cut to form independent circuit board units, and the SN of the circuit board unit can be used directly in the subsequent process.

[0050] S6, the MES system combines with the error-proof material system to ensure that all materials used meet the specification requirements, and the Mes system traces the product according to the SN number.

[0051] In the error-proof material system, it includes:

[0052] (1) material pre-checking stage;

[0053] When the material is put into the warehouse, the unique RFID tag is bound with the material code and batch number in the MES, and is associated with the BOM of the corresponding PCB model. After the operator scans the work order number, the system automatically retrieves the station table of the work order.

[0054] (2) RFID scans the material on the shelf, and checks the dimensions;

[0055] The check dimensions include consistency of material code compared with the station table, batch validity period, and verification during production and before SMT mounting.

[0056] (3) real-time monitoring;

[0057] ​When the patch machine is changing materials, the weight sensor is used to monitor the remaining amount of the material tray. When the actual consumption rate deviates from the theoretical value by more than 15%, the review is triggered.

[0058] (4) Abnormal processing mechanism;

[0059] 1) Type mismatch: immediately stop and lock the device;

[0060] 2) Batch mismatch: prompt confirmation and record deviation;

[0061] 3) Reverse polarity: automatically correct the mounting angle.

[0062] Take SN (serial number) as the core identifier, automatically record and associate key data in the production process, and ensure that the complete production history of each circuit board can be queried in real time.

[0063] The traceability system consists of the following modules: SN data acquisition, MES data storage layer, and traceability query layer.

[0064] In the SN data acquisition layer, the laser engraving machine (engraves SN), AOI optical detection (SN automatic identification), barcode gun / industrial camera (SN scanning), RFID device (binds SN for key materials);

[0065] The MES data storage layer passes through the information (time, equipment, operator, detection result), material batch, and environmental parameters (temperature and humidity, equipment status);

[0066] The traceability query layer MES visual interface (query all process data according to SN), data analysis engine (SPC statistics, failure rate analysis).

[0067] Based on the above method, a non-intervention Mes traceability device in the embodiment includes at least one memory and at least one processor;

[0068] The at least one memory is used to store a machine-readable program;

[0069] The at least one processor is used to call the machine-readable program and execute a non-intervention Mes traceability method.

[0070] The above specific embodiments are only specific cases of the present application, and the patent protection scope of the present application includes but is not limited to the above specific embodiments. Any technical solution meeting the above specific embodiments of the present application and any appropriate changes or replacements made by ordinary technical personnel in the technical field shall fall within the patent protection scope of the present application.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A non-intervention Mes tracing method, characterized in that: The steps are as follows: S1. First, use a laser engraving machine to engrave a unique SN on each circuit board unit of the PCB panel; S2. During the laser engraving process, upload the SN data to the MES server according to the SOP sequence; S3, SN reading and binding; S4. Use industrial cameras to monitor the production process in real time and adjust the fill light or issue an alarm according to the actual situation; S5, board separation processing; S6, MES system is combined with the error proofing system to ensure that all materials used meet the specification requirements. The Mes system traces the products according to the SN number.

2. A non-intervention Mes tracing method according to claim 1, characterized in that: In step S3, in the SMT process, the SN on the PCB panel is read by a barcode reader, and the remaining SN is obtained from the MES server using AOI optical inspection equipment to complete the automated binding.

3. A non-intervention Mes tracing method according to claim 2, characterized in that: In step S5, after the SMT process is completed, the PCB panel is cut to form independent circuit board units, and the subsequent processes can directly use the SN of the circuit board unit.

4. The non-intervention Mes tracing method according to claim 3, characterized in that: The error proofing system includes: (1) Material pre-verification stage; (2) RFID scans shelf materials and verifies dimensions; (3) Real-time monitoring; (4)Exception handling mechanism.

5. The non-intervention Mes tracing method according to claim 4, characterized in that: In step (1), when the material is put into storage, the unique RFID tag is bound to the material code and batch number in the MES, and the BOM of the corresponding PCB model is associated; After the operator scans the work order number, the system automatically retrieves the station table for the work order.

6. A non-intervention Mes tracing method according to claim 5, characterized in that: In step (2), the verification dimensions include: comparison of material coding consistency with the station table, batch validity period, verification during production and verification before SMT placement.

7. The non-intervention Mes tracing method according to claim 6, characterized in that: In step (3), when the placement machine changes materials, the remaining amount of the material tray is monitored by a weight sensor, and a review is triggered when the actual consumption rate deviates from the theoretical value by more than 15%.

8. The non-intervention Mes tracing method according to claim 6, characterized in that: In step (4), the response is graded: 1) Model mismatch: Immediately shut down and lock the device; 2) Batch discrepancy: prompt confirmation and record the deviation; 3) Reverse polarity: Automatically correct the mounting angle.

9. A non-intervention Mes tracing device, characterized in that: include: at least one memory and at least one processor; The at least one memory is configured to store a machine-readable program; The at least one processor is configured to call the machine-readable program to execute the method according to any one of claims 1 to 8.

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