A modular-level flexible assembly production system and execution method for military electronic products

Abstract

The present invention discloses a module-level flexible assembly production system and execution method for military electronic products, which relates to the field of automated production and manufacturing technology, including a production system, a conveying system, a power distribution and control system. The production system includes, in order of assembly production, a system management station, a screw assembly station, a cable production station, a manual welding station, a module-level inspection station, and a finished product silo. There are no less than two screw assembly stations, cable production stations, manual welding stations, and module-level inspection stations, respectively. Through the three execution methods of sequential execution, selective execution, and disorderly execution, a variety of processes for assembling different types of modules can be designed. The present invention can realize mixed-line flexible assembly production of different types of modules, and digitize and informationize the assembly process, process parameters, and process inspection to ensure quality consistency and improve the assembly efficiency of each station.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production and manufacturing, and in particular to a module-level flexible assembly production system and an execution method for military electronic products. Background Art

[0002] The development and production of military electronic products have business characteristics such as "multiple varieties, small batches, multiple batches, scientific and technological production, short cycle, and high reliability". This determines that the production line changes are frequent and the preparation time for line changes is long during the production process. It is difficult to achieve full-process automated assembly production like process-based manufacturing enterprises such as automobiles, clothing, and home appliances, which have a high degree of standardization, stable technical status, large production batches, and balanced production plans.

[0003] The current military electronics assembly production model generally divides different assembly lines into different module types, with each line completing the assembly and production of a single module type. On an assembly line, a single operator typically uses the appropriate tools and process documentation to perform screw assembly, cable fabrication, and manual soldering for the entire module. After assembly is complete, an inspector conducts a visual inspection according to the documentation.

[0004] However, the existing military electronic assembly production model has the following shortcomings:

[0005] 1. An assembly line only assembles and produces one type of module, which cannot achieve mixed-line flexible assembly production, resulting in limited production efficiency and low production line utilization;

[0006] 2. An operator needs to be familiar with the operation of each step, and constantly switch between steps during the assembly process, which is not conducive to the operator to maximize their efficiency in their areas of strength and it is difficult to improve the assembly efficiency of the module;

[0007] 3. During the assembly process, process parameters such as screw assembly torque, screw assembly sequence, manual welding time, and welding temperature, as well as process inspections, are controlled by operators according to process documents. This leads to problems such as uncontrolled process parameter settings, low quality consistency, and cumbersome and inefficient manual recording of process data.

[0008] 4. The manual visual inspection module has human problems such as false detection and missed detection, and the quality of inspection cannot be guaranteed. Summary of the Invention

[0009] The purpose of the present invention is to provide a module-level flexible assembly production system and execution method for military electronic products to solve the problems existing in the background technology.

[0010] The object of the present invention is achieved through the following technical solutions:

[0011] A modular-level flexible assembly production system and execution method for military electronic products, comprising a production system, a conveying system, and a power distribution and control system. The production system comprises, in order of assembly production, a system management station, a screw assembly station, a cable production station, a manual welding station, a module-level inspection station, and a finished product silo. There are at least two screw assembly stations, cable production stations, manual welding stations, and module-level inspection stations, respectively. The conveying system is connected to each station in the production system, and the power distribution and control system is electrically connected to the conveying system and the production system, respectively.

[0012] Furthermore, the screw assembly station, cable production station, manual welding station and module-level inspection station are all equipped with an anti-static operating table, an all-in-one machine, a material storage silo and a barcode scanner. The barcode scanner is electrically connected to the all-in-one machine. The all-in-one machine is used to receive work orders, the barcode scanner is used to scan material QR codes, and the material storage silo is used to store materials.

[0013] Furthermore, the screw assembly station is provided with an electronic control system, a screwdriver, a bit selection box and an assembly rib, and the assembly rib is provided with a zeroing sensor. The electronic control system is electrically connected to the screwdriver, the bit selection box and the assembly rib respectively. The electronic control system includes a first industrial computer, a first programmable logic controller, a balance arm and a balance crane, and a screwdriver controller. The ends of the balance arm and the balance crane are connected to the screwdriver.

[0014] Furthermore, the manual welding station is provided with a welding iron, an exhaust duct, a position sensor, a second industrial computer and a second programmable controller. The position sensor is electrically connected to the second programmable controller, the welding iron is connected to the second industrial computer, and the position sensor is used to detect the placement of the welding iron.

[0015] Furthermore, the module-level inspection station is provided with a visual industrial computer, a lifting detection platform, and a camera module and a light source module located above the lifting detection platform, and the visual industrial computer is electrically connected to the lifting detection platform.

[0016] Furthermore, the conveying system includes a carrier fixture, which transports materials to various workstations of the production system through the carrier fixture. A stop and lift mechanism is provided in the carrier fixture, and the carrier fixture switches between the conveying system and various workstations through the stop and lift mechanism.

[0017] Furthermore, a display screen is provided on one side of the production system, and the display screen is electrically connected to the production system.

[0018] A method for executing a module-level flexible assembly production system for military electronic products comprises the following steps:

[0019] S1: The main power supply is turned on through the power distribution and control system. The operator swipes a card or enters a username and password to log in to each workstation in the production system. The production system prompts the operator to wear an anti-static wristband and monitors the wearing status in real time.

[0020] S2: Log in to the administrator system at the system administrator's position, import the code in the work order and parse it to obtain the work order information. By complementing each other through three methods: sequential execution, selective execution, and out-of-order execution, the entire module assembly process sequence is set to achieve mixed-line assembly of multiple types of modules;

[0021] S3: Each workstation in the production system receives a new work order, scans the material QR code to obtain material information, and stores it in the material storage silo of each workstation. After the material is received, it is shipped out and assembly work begins. Screw assembly, cable production, and manual welding are performed according to the execution method of S2. During screw assembly, the screw tightening sequence and torque are set and the torque curve of each screw tightening is recorded. During manual welding, the temperature and time curve of each welding is recorded.

[0022] S4: After completing assembly production, perform module-level inspection. Select the work order to be inspected, scan the module QR code, set the threshold, and start automatic inspection.

[0023] S5: The finished module enters the finished product silo.

[0024] Furthermore, in step S3, the processes to be executed sequentially must be executed step by step in sequence; only one of the processes to be executed selectively will be selected; the processes to be executed out of order must all be executed before the next process can be executed and the order of the processes to be executed out of order is arbitrary.

[0025] The beneficial effects of the present invention are:

[0026] 1) Enables flexible assembly of different types of modules on mixed lines. By using three execution methods: sequential, selective, and out-of-order, it is possible to design assembly processes for a variety of different module types, enabling flexible assembly of different types of modules on mixed lines and improving assembly efficiency at each workstation.

[0027] 2) Digital and information-based management and control of the assembly process, process parameters, and process inspections are implemented. Data on screw assembly torque, soldering time, and temperature process parameters are collected to ensure real-time monitoring and data traceability of the assembly production process, thereby improving inspection effectiveness.

[0028] 3) Solve problems such as operators maximizing their effectiveness in their areas of strength and improving module assembly efficiency, uncontrolled process parameter settings, cumbersome and inefficient manual recording of process data, and low quality consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the composition of a module-level flexible assembly production system for military electronic products according to the present invention;

[0030] Figure 2 Schematic diagram of the screw assembly station in the present invention;

[0031] Figure 3 Schematic diagram of the balance arm, balance crane and screwdriver controller in the present invention;

[0032] Figure 4 Schematic diagram of a manual welding station in the present invention;

[0033] Figure 5 Schematic diagram of a module-level inspection station in the present invention;

[0034] In the figure, 1-system management station, 2-screw assembly station, 201-screwdriver, 202-bit selection box, 203-assembly rib, 2031-zero sensor, 204-balance arm and balance crane, 205-screwdriver controller, 3-cable production station, 4-manual welding station, 401-soldering iron, 402-position sensor, 403-exhaust duct, 5-module-level inspection station, 501-visual industrial computer, 502-lifting detection platform, 503-camera module, 6-finished product silo, 7-conveyor system, 701-load fixture, 8-power distribution and control system, 9-display screen, 10-antistatic operating table, 11-all-in-one machine, 12-material storage silo, 13-barcode scanner. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0036] Example 1:

[0037] like Figure 1-Figure 5 As shown, a module-level flexible assembly production system for military electronic products includes a production system, a conveying system 7, and a power distribution and control system 8. The production system includes, in order of assembly production, a system management station 1, a screw assembly station 2, a cable making station 3, a manual welding station 4, a module-level inspection station 5, and a finished product silo 6. There are no less than two screw assembly stations 2, cable making stations 3, manual welding stations 4, and module-level inspection stations 5, respectively. The conveying system 7 is connected to each station in the production system, and the power distribution and control system 8 is electrically connected to the conveying system 7 and the production system, respectively.

[0038] Furthermore, the screw assembly station 2, cable production station 3, manual welding station 4 and module-level inspection station 5 are all equipped with an anti-static operating table 10, an all-in-one machine 11, a material storage silo 12 and a barcode scanner 13. The barcode scanner 13 is electrically connected to the all-in-one machine 11. The all-in-one machine 11 is used to receive work orders, the barcode scanner 13 is used to scan material QR codes, and the material storage silo 12 is used to store materials.

[0039] Furthermore, the conveying system 7 includes a carrier clamp 701, and the conveying system 7 transports materials to each workstation of the production system through the carrier clamp 701. A stop and lift mechanism is provided in the carrier clamp 701, and the carrier clamp 701 switches between the conveying system 7 and each workstation through the stop and lift mechanism.

[0040] Furthermore, a display screen 9 is provided on one side of the production system, and the display screen 9 is electrically connected to the production system.

[0041] Through the above technical solution, the system management station 1 is used to manage each station in the module production system, including operator management, job setting, role management, login log, issuing work orders, viewing history, report management, connecting with external systems, obtaining work order information, uploading production data, etc.

[0042] Screw assembly station 2 is used for screw fastening and assembly of module mounting plates, components, and pressure strips;

[0043] Cable production station 3 is used for unwinding and stripping low-frequency and high-frequency cables within the module;

[0044] Manual soldering station 4 is used for manual soldering with a soldering iron between module cables and mounting plates, connectors and mounting plates, components and mounting plates, cables and connectors, etc., to achieve electrical interconnection of modules;

[0045] Module-level inspection station 5 is used for module inspection;

[0046] Finished product silo 6 is used for storage, entry and exit of module finished products, and displays information such as storage quantity and location;

[0047] The conveying system 7 is used for logistics transportation, transporting the loaded materials and semi-finished module materials to various stations in the production system;

[0048] The power distribution and control system 8 is used to supply power to the conveying system 7 and the tools and equipment at each workstation, as well as to control the operation of the system and collect data at each workstation.

[0049] The display screen 9 is used for real-time display of information such as production tasks, progress, operation status of each workstation, quality issues, etc.

[0050] Through the coordinated combination of multiple stations and multiple systems, mixed-line flexible assembly production is achieved, production efficiency and production line utilization are improved, and the assembly process, process parameters, and process inspection are digitally and information-based controlled to improve the degree of automation, improve assembly efficiency, and ensure real-time monitoring of the assembly production process and data traceability.

[0051] Example 2:

[0052] This embodiment is based on the above embodiment 1 and combined with the attached Figure 1-3 As shown, further, the screw assembly station 2 is provided with an electric control system, a screwdriver 201, a bit selection box 202 and an assembly rib 203, and the assembly rib 203 is provided with a zero sensor 2031. The electric control system is electrically connected to the screwdriver 201, the bit selection box 202 and the assembly rib 203 respectively, and the electric control system includes a first industrial computer, a first programmable logic controller, a balance arm and a balance hanger 204, and a screwdriver controller 205. The ends of the balance arm and the balance hanger 204 are connected to the screwdriver 201.

[0053] Through the above technical solution, the screwdriver 201 is used to tighten and assemble screws of various specifications and models. The balance arm and balance hanger 204 are fixed on the anti-static operating table 10 to clamp the screwdriver 201 and ensure that the screwdriver 201 remains in a vertical state when moving in space and tightening screws, thereby ensuring the quality of screw assembly. The bit selection box 202 is used to place the bit of the screwdriver 201. The assembly rib 203 is used to limit the scope of the assembly operation, and the zeroing sensor 2031 provided at the same time is used for zeroing and positioning during screw assembly. The screwdriver controller 205 is used to control the action of screw assembly.

[0054] The specific screw assembly process is as follows: when only one bit is removed from the bit selection box 202, the bit selection box 202 transmits the serial number information corresponding to the bit to the first programmable logic controller, which then uploads the bit number data to the first industrial computer; the pulse signals of the rotation and extension of the balance arm and balance crane 204 are connected to the first programmable logic controller, which then converts the pulse signals into displacement data and uploads it to the first industrial computer; the operator moves the screwdriver 201 through the balance arm and balance crane 204 to the zeroing sensor 2031 and presses down, completing the zeroing process; The first industrial computer collects the batch number information of the tool head selection box 202, the zero return and displacement information of the balance arm and the balance crane 204 through the first programmable logic controller. The first industrial computer confirms whether the current position allows the screw tightening operation by matching the visual teaching position coordinates. If the conditions are met, the first programmable logic controller is notified to allow screw tightening, and then the signal is transmitted to the screwdriver controller 205 to start screw tightening. As long as the screwdriver 201 is pressed down, the screwdriver 201 executes the tightening program preset by the first industrial computer. The screw tightening parameter settings and tightening results of the screwdriver 201 are set and obtained by the first industrial computer through the Ethernet interface.

[0055] The other parts of this embodiment are the same as those of the above embodiment and will not be described here in detail.

[0056] Example 3:

[0057] This embodiment is based on the above embodiment 1 and combined with the attached Figure 1 、 4 As shown, further, the manual welding station 4 is provided with a welding iron 401, an exhaust duct 403, a position sensor 402, a second industrial computer and a second programmable controller, the position sensor 402 is electrically connected to the second programmable controller, the welding iron 401 is connected to the second industrial computer, and the position sensor 402 is used to detect the placement of the welding iron 401.

[0058] Through the above technical solution, during manual welding, the position sensor 402 detects the placement of the welding iron 401 and feeds back the information to the second industrial computer through the second programmable logic controller; when the welding iron 401 is removed, the welding iron 401 is switched to the working temperature state, and when the welding iron 401 is put back, it is switched to the sleeping temperature state; the temperature of the welding iron 401 is controlled by the second industrial computer, and the welding time and welding temperature process parameters can be uploaded to the system management staff position through the all-in-one machine 11.

[0059] The other parts of this embodiment are the same as those of the above embodiment and will not be described here in detail.

[0060] Example 4:

[0061] This embodiment is based on the above embodiment 1 and combined with the attached Figure 1 、 5 As shown, further, the module-level inspection station 5 is provided with a visual industrial computer 501, a lifting detection platform 502, and a camera module 503 and a light source module located above the lifting detection platform 502, and the visual industrial computer 501 is electrically connected to the lifting detection platform 502.

[0062] Through the above technical solution, when the module-level inspection is carried out, the teaching function is first used to save the accurately assembled module template. When the inspection starts, the module is identified through the QR code and placed in the module-level inspection station 5. The inspection threshold is set, and the inspection is clicked. Then the inspection is automatically started and automatically compared with the template. The detection of wrong installation, missing installation, and reverse installation can be realized quickly and accurately. The error type can be set and counted, which is convenient for the automatic output and query of the inspection report.

[0063] The other parts of this embodiment are the same as those of the above embodiment and will not be described here in detail.

[0064] Example 5:

[0065] This embodiment is based on the above embodiments 1-4 and combined with the attached Figure 1-5 As shown,

[0066] A method for executing a module-level flexible assembly production system for military electronic products comprises the following steps:

[0067] S1: The main power supply is turned on through the power distribution and control system 8. The operator swipes a card or enters a username and password to log in to each workstation in the production system. The production system prompts the operator to wear an anti-static wristband and monitors the wearing status in real time;

[0068] S2: Log in to the administrator system at the system administrator's position, import the code in the work order and parse it to obtain the work order information. By complementing each other through three methods: sequential execution, selective execution, and out-of-order execution, the entire module assembly process sequence is set to achieve mixed-line assembly of multiple types of modules;

[0069] S3: Each workstation in the production system receives a new work order, scans the material QR code to obtain material information, and stores it in the material storage silo 12 of each workstation. After the material is stored in the silo, it is shipped out and assembly work is carried out. Screw assembly, cable production, and manual welding are carried out according to the execution method of S2. When assembling screws, the screw tightening sequence and torque are set and the torque curve of each screw tightening is recorded; when manually welding, the temperature and time curve of each welding is recorded;

[0070] S4: After completing assembly production, perform module-level inspection. Select the work order to be inspected, scan the module QR code, set the threshold, and start automatic inspection.

[0071] S5: The finished module enters the finished product silo 6.

[0072] Through the above technical solution, the screw assembly station 2 collects torque in real time during screw tightening and associates it with the type of screw being tightened. The manual welding station 4 collects the actual welding temperature and time in real time during manual welding and associates it with the type of device being welded. This makes process parameter settings controllable, quality consistency high, and process data automatically recorded and uploaded, improving data recording accuracy and facilitating process data control and traceability. At the same time, the module-level inspection station 5 enables fast and accurate testing, ensuring inspection efficiency.

[0073] Example 6:

[0074] This embodiment is based on the above embodiment 5 and combined with the attached Figure 1-5 As shown,

[0075] Furthermore, in step S3, the processes to be executed sequentially must be executed step by step in sequence; only one of the processes to be executed selectively will be selected; the processes to be executed out of order must all be executed before the next process can be executed and the order of the processes to be executed out of order is arbitrary.

[0076] Through the above technical solution, according to the three execution methods, processes for assembling various types of modules can be designed, and mixed-line flexible assembly production of various types of modules can be realized, thereby improving the assembly efficiency of each workstation.

[0077] The sequential execution method is indicated by parentheses, and the processes inside must be executed step by step in sequence, such as 201, 301, 401, 501, 601, where 201 represents screw assembly station 2 No. 1, 301 represents cable production station 3 No. 1, 401 represents manual welding station 4 No. 1, 501 represents module-level inspection station 5 No. 1, and 601 represents finished product silo No. 1 6. The above work order content indicates that processing is completed at station 201, then at station 301, and then at station 401 and then at station 601.

[0078] Select the execution method: It is indicated by square brackets. Only one of the processes inside will be selected for execution, without restriction on which one, such as 201, [301, 302], 401, [501, 502], 601, where 302 represents cable production station 3 of No. 2, and 502 represents module-level inspection station 5 of No. 2. The above work order content means that after processing at station 201, it will be processed at station 301 or station 302, and then at station 401, and then at station 501 or station 502, and then at station 601.

[0079] Out-of-order execution: Curly braces indicate that all processes within the order must be completed before the next process can proceed. The order of the processes is arbitrary. For example, {201, 302}, 401, 501, 602, where 602 represents finished product bin 6 in No. 2. The above work order indicates that workstation 201 must complete all processes at workstation 302 before workstation 401 can proceed. There is no order requirement between workstations 201 and 302.

[0080] According to the above design ideas, and according to the working status of each station in the module flexible assembly production system, if three different types of modules A, B, and C are produced at the same time, the process sequence of the assembly of three different types of modules can be designed as follows:

[0081] A{201,301,},[401,402],[501,502],601;

[0082] B{202,302,},[401,402],[501,502],601;

[0083] C[201,202],[301,302],[401,402],[501,502],601;

[0084] This system enables flexible mixed-line assembly of three different types of modules: A, B, and C. During the assembly process, each workstation can switch processes according to work order requirements, making full use of all idle workstations. This helps operators maximize their efficiency, improves module assembly efficiency, production efficiency, and production line utilization.

[0085] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A method for executing a module-level flexible assembly production system for military electronic products, characterized by: The invention comprises a module-level flexible assembly production system for military electronic products, wherein the module-level flexible assembly production system for military electronic products comprises a production system, a conveying system (7), and a power distribution and control system (8). The production system comprises, in order of assembly production, a system management station (1), a screw assembly station (2), a cable production station (3), a manual welding station (4), a module-level inspection station (5), and a finished product silo (6). There are no less than two screw assembly stations (2), cable production stations (3), manual welding stations (4), and module-level inspection stations (5). The conveying system (7) is connected to each station in the production system, and the power distribution and control system (8) is electrically connected to the conveying system (7) and the production system respectively. The screw assembly station (2), cable production station (3), manual welding station (4) and module-level inspection station (5) are all equipped with an anti-static operating table (10), an all-in-one machine (11), a material storage silo (12) and a barcode scanner (13). The barcode scanner (13) is electrically connected to the all-in-one machine (11). The all-in-one machine (11) is used to receive work orders, the barcode scanner (13) is used to scan material QR codes, and the material storage silo (12) is used to store materials. The implementation method of the module-level flexible assembly production system for military electronic products includes the following steps: S1: The main power supply is turned on through the power distribution and control system (8), and the operator swipes a card or enters a user name and password to log in to each workstation in the production system. The production system prompts the operator to wear an anti-static wristband and monitors the wearing status in real time; S2: Log in to the administrator system at the system management station, import and parse the code in the work order to obtain the work order information, and set the entire module assembly process sequence to achieve mixed-line assembly of multiple types of modules through the three methods of sequential execution, selective execution, and random execution. S3: Each workstation in the production system receives a new work order, scans the material QR code to obtain the material information and stores it in the material storage silo (12) of each workstation. After the material is put into storage, the material is taken out of the warehouse and the assembly work is carried out. According to the execution method of S2, screw assembly, cable production and manual welding are carried out. When assembling screws, the screw tightening sequence and torque are set and the torque curve of each screw tightening is recorded; when manual welding, the temperature and time curve of each welding are recorded; S4: After completing assembly production, perform module-level inspection. Select the work order to be inspected, scan the module QR code, set the threshold, and start automatic inspection. S5: The finished module enters the finished product silo (6); In step S3, the processes to be executed sequentially must be executed step by step in order; only one of the processes to be executed selectively will be selected; the processes to be executed out of order must all be executed before the next process can be executed and the order of the processes to be executed out of order is arbitrary.

2. The method for executing the module-level flexible assembly production system for military electronic products according to claim 1, characterized in that: The screw assembly station (2) is provided with an electric control system, a screwdriver (201), a tool head selection box (202) and an assembly rib (203); a zeroing sensor (2031) is provided on the assembly rib (203); the electric control system is electrically connected to the screwdriver (201), the tool head selection box (202) and the assembly rib (203), respectively; the electric control system comprises a first industrial computer, a first programmable logic controller, a balancing arm and a balancing hanger (204), and a screwdriver controller (205); and the ends of the balancing arm and the balancing hanger (204) are connected to the screwdriver (201).

3. The method for executing the module-level flexible assembly production system for military electronic products according to claim 1, characterized in that: The manual welding station (4) is provided with a welding iron (401), an exhaust duct (403), a sensor, a second industrial computer and a second programmable controller, the sensor is electrically connected to the second programmable controller, the welding iron (401) is connected to the second industrial computer, and the sensor is used to detect the placement of the welding iron (401).

4. The method for executing the module-level flexible assembly production system for military electronic products according to claim 1, characterized in that: The module-level inspection station (5) is provided with a visual industrial control computer (501), a lifting detection platform (502), and a camera module (503) and a light source module located above the lifting detection platform (502). The visual industrial control computer (501) is electrically connected to the lifting detection platform (502).

5. The execution method of the module-level flexible assembly production system for military electronic products according to claim 1, characterized in that: The conveying system (7) comprises a carrier clamp (701), and the conveying system (7) conveys materials to various workstations of the production system through the carrier clamp (701). A stop and lift mechanism is provided in the carrier clamp (701), and the carrier clamp (701) switches between the conveying system (7) and various workstations through the stop and lift mechanism.

6. The execution method of the module-level flexible assembly production system for military electronic products according to claim 1, characterized in that: A display screen (9) is provided on one side of the production system, and the display screen (9) is electrically connected to the production system.

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