CN115383457A - Automatic assembly platform system for non-metal shell product - Google Patents

Abstract

The application discloses an automatic assembly platform system for non-metal casing product includes: the system comprises a conveying line, a front cover feeding and film pasting station, a buzzer glue sealing station, a battery and circuit board mounting station, a visual detection station, a rear cover mounting and marking station, a platform controller and a main control module, wherein the front cover feeding and film pasting station is arranged at the front part of the conveying line and used for feeding a front cover and pasting a film; the buzzer glue sealing station is used for feeding, sealing and sealing the buzzer and blanking unqualified front covers; the battery and circuit board mounting station is used for assembling the battery and welding a wire harness; the visual detection station is used for detecting the position and the direction of the film, the reserved hole position and the welding condition; the rear cover mounting and marking station is used for mounting a circuit board, sealing the shell by glue, and finishing mounting, film pasting and marking of the rear cover; the platform controller is communicated with the main control module and the controlled equipment, and the platform controller executes operation according to the instruction. The system can improve the assembly efficiency and reduce the labor cost.

Description

Automatic assembly platform system for non-metal shell product

Technical Field

The application relates to the technical field of production line design, in particular to an automatic assembly platform system for a non-metal shell product.

Background

At present, equipment manufacturing automation is one of core parts of coal industry revolution, and along with the development of manufacturing industry and diversification of business, the automatic assembly of products is rapidly and efficiently completed, so that the method is a strategy for ensuring coal production and improving the comprehensive strength of the coal industry. In the coal industry, non-metallic shell products are one of the products with greater production volumes.

In the related technology, aiming at the assembly of a non-metal shell product, a concept of beat process flow is provided in a production link, and a workshop also adjusts the working table and personnel for the production link comprising the working procedures of a front cover, a front cover film, a buzzer, a battery, silica gel, a red and black lead, a self-tapping screw, a circuit board, a combined screw, a rear shell, a distress film, an identification code film and the like, and measures such as direct external cooperation of partial working procedures and the like are taken. And the battery feeding, the glue dispensing, the rear cover feeding, the screwing, the marking, the code pasting and the like are all completed manually, and the traditional manual double-hand operation mode is adopted for welding the circuit board.

However, the production mode is also a production mode which focuses on manual work as a main part and a small number of tools as an auxiliary part, the problem of production faults is generally high, the occupied labor cost is high, the production efficiency is still low, and the production requirement cannot be met.

Disclosure of Invention

The object of the present application is to solve at least to some extent one of the technical problems described above.

To this end, the present application aims to propose an automated assembly platform system for non-metallic housing products. The system can realize automatic standardization of various operation procedures, reduce artificial assembly faults, improve production efficiency and realize automatic assembly of small-sized products of the non-metal shell.

To achieve the above object, the present application proposes an automated assembly platform system for non-metallic housing products, the system comprising: a conveying line, a front cover feeding and film pasting station, a buzzer glue sealing station, a battery and circuit board mounting station, a visual detection station, a rear cover mounting and marking station, a platform controller and a main control module,

the front cover feeding and film pasting station, the buzzer glue sealing station, the battery and circuit board mounting station and the rear cover mounting and marking station are sequentially arranged at corresponding positions of the conveying line;

the front cover feeding and film pasting station is arranged at the front part of the conveying line and is used for feeding a front cover of a non-metal shell product, pasting a film on the fed front cover and conveying the front cover subjected to visual detection to the buzzer glue sealing station;

the buzzer glue sealing station is used for loading a buzzer, sealing the buzzer and blanking a front cover which does not pass the visual detection;

the battery and circuit board mounting station is used for assembling a battery and welding the wiring harness of the sealed buzzer and the wiring harness of the battery on the circuit board;

the visual detection station is used for detecting the film sticking position, the film sticking direction and the reserved hole position of the front cover and the welding condition of the circuit board;

the rear cover mounting and marking station is used for mounting a circuit board, sealing the shell and completing mounting, film pasting and marking of the rear cover of the non-metal shell product;

the platform controller is communicated with the main control module and the controlled equipment in each station, and is used for controlling the controlled equipment to execute corresponding operation according to the instruction sent by the main control module.

In addition, the automatic assembly platform system for the non-metal shell product of the embodiment of the application also has the following additional technical characteristics:

optionally, in some embodiments, the automated transport platform further comprises: protecgulum material loading and pad pasting station includes: the automatic film sticking device comprises a first feeding module, a first mechanical arm and first automatic film sticking equipment, wherein the feeding module is used for conveying the front cover in a groove positioning and pushing manner; the first mechanical arm is used for grabbing the front cover from the feeding module; the first automatic film pasting equipment is used for pasting films at corresponding positions of the front cover.

Optionally, in some embodiments, the buzzer sealing station comprises: the flexible manipulator is used for grabbing the buzzer from a buzzer tray and placing the buzzer at the first dispensing machine; the first glue dispenser is used for sealing the buzzer.

Optionally, in some embodiments, the battery and circuit board mounting station comprises: the battery welding device comprises a second mechanical arm, a plurality of manual welding sub-stations and a reserved mechanical welding station, wherein the second mechanical arm is used for assembling the battery; and the circuit board is manually welded at the manual welding sub-station.

Optionally, in some embodiments, the vision inspection station includes a plurality of industrial cameras and a vision inspection subsystem, wherein the plurality of industrial cameras are respectively disposed at the front cover loading and laminating station and the battery and circuit board mounting station, and the plurality of industrial cameras are configured to capture images of the front cover and the circuit board; the visual detection subsystem is specifically configured to: collecting the images acquired by the plurality of industrial cameras; filtering the image; acquiring a function equation of each filtered image; and carrying out image morphology analysis based on the function equation.

Optionally, in some embodiments, the rear cover mounting and marking station includes: the automatic film sticking device comprises a single-shaft screw machine, a second glue dispenser, rotary table mechanical equipment, a second feeding module, a third mechanical arm, a four-shaft screw machine, second automatic film sticking equipment and automatic marking equipment, wherein the single-shaft screw machine is used for installing a welded circuit board; the second glue dispenser is used for sealing the shell; the rotary table mechanical equipment is used for conveying the workpieces to be processed to different stations through clockwise rotation; the second feeding module is used for conveying the sealed shell and the back cover; the third mechanical arm is used for grabbing a pre-arranged workpiece and assembling the rear cover; the four-axis screw machine is used for screwing screws on the rear cover component; the second automatic film pasting equipment is used for pasting a film at a corresponding position of the rear cover; and the automatic marking equipment is used for marking the rear cover after the film is pasted.

Optionally, in some embodiments, the rear cover mounting and marking station further includes: the manual sampling inspection sub-station and the third mechanical arm are also used for blanking and stacking the assembled non-metal shell products; and the manual sampling inspection sub-station is used for sampling inspection of the assembled non-metal shell product.

Optionally, in some embodiments, during the selective inspection, manual material calling is performed at the manual selective inspection sub-station, and the third mechanical arm is controlled to stop stacking and transfer the assembled non-metal shell product to the manual selective inspection sub-station.

Optionally, in some embodiments, the platform controller comprises: the type of the programmable logic controller PLC is Siemens S7-1200CPU1214C, the Siemens S7-1200CPU1214C programmable logic controller PLC comprises a PROFINET communication interface and an Ethernet interface, the communication with the main control module is carried out through an I/O communication module, and the input address and the output address of the Siemens S7-1200CPU1214C programmable logic controller PLC are distributed to transmit corresponding equipment control signals.

Optionally, in some embodiments, the controlled device accesses the automatic assembly platform system through an ethernet interface of the siemens S7-1200CPU1214C programmable logic controller PLC based on a PROFINET bus, and the siemens S7-1200CPU1214C programmable logic controller PLC communicates with the controlled device in a TCP mode and performs data interaction with the controlled device through an instruction in the open user communication OUC.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: this application carries out communication and data exchange through adopting industrial robot, visual detection equipment, equipment master control interface system, PLC equipment etc. realizes one set of non-metal casing product automatic assembly line platform, can be quick, the efficient accomplish product automatic assembly's task, reduces the human resource who occupies and promotes assembly efficiency. The automatic assembly standardization of various non-metal shell products and the flexible design of the non-metal shell automatic assembly products can be realized; the automatic folding forming and the automatic box sealing of the product package are realized, and the labor and the working hours are saved; the automatic conveying line is designed in a segmented mode, the scheme of the device is optimized, and energy consumption is saved while assembling is met; the platform device is provided with an Ethernet port and an RS485 interface, so that other functions can be conveniently and subsequently expanded. Promptly, this application can realize making multiple operating procedure realize automatic standardization, reduces artificial equipment trouble, promotes production efficiency to and, fine solution PLC and third party's equipment communication problem, realized the automatic assembly of the small-size product of nonmetal casing.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an automatic assembly platform system for a non-metal casing product according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a specific front cover loading and film pasting station according to an embodiment of the present application;

fig. 3 is a flowchart of a visual inspection method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a specific rear cover mounting and marking station according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a PLC communication module of an automatic assembly platform system according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an automatic assembly platform system for a non-metal casing product according to an embodiment of the present disclosure;

fig. 7 is a process flow diagram of an automated assembly platform system for a non-metal casing product according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application.

It should be noted that, in order to complete a series of assembly processes, the automatic assembly platform system for the non-metal shell product utilizes the main control module, the communication module and the platform controller to perform control operation, and the design fully considers automatic product assembly, production line flexibility, convenient protocol assembly and subsequent expansion. The non-metal shell product includes portable and identification products, for example, the non-metal shell product may be a UWB identification card, or may also be a portable instrument for measuring the content of various gases, etc.

An automated assembly platform system for non-metallic housing products according to embodiments of the present application is described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an automatic assembly platform system for a non-metal casing product according to an embodiment of the present application, where the system includes: the device comprises a conveying line 10, a front cover feeding and film pasting station 20, a buzzer glue sealing station 30, a battery and circuit board installing station 40, a visual detection station 50, a rear cover installing and marking station 60, a platform controller 70 and a main control module 80.

Wherein, visual detection station 50, platform controller 70 and host system 80 are not shown in the figure, along the direction of transmission of each subassembly material in the non-metallic casing product, protecgulum material loading and pad pasting station 20, bee calling organ seal glue station 30, battery and circuit board installation station 40, back lid installation and mark station 60 set gradually in the relevant position department of transfer chain 10 according to precedence order, and the concrete mounted position of each equipment, for example, be located transfer chain 10 which side, can adjust according to actual production needs.

The vision inspection station 50 is used to visually inspect the assembled components in the front cover loading and laminating station 20 and the battery and circuit board mounting station 40, and the equipment for performing vision inspection in the vision inspection station 50, such as an industrial camera, may be disposed near these two stations to complete image acquisition and inspection. That is, in an embodiment of the present application, each device in the visual inspection station 50 may be integrated into a station to be inspected, and a station for performing visual inspection alone may not be reserved on the production line.

Specifically, the front cover feeding and film pasting station 20 may be disposed at a front position of the conveying line 10, and is configured to complete feeding of the front cover of the non-metal housing product, perform film pasting on the fed front cover, and transmit the front cover subjected to the visual inspection to the buzzer sealing station 30.

In an embodiment of the application, the protecgulum material loading and pad pasting station includes: the automatic film sticking device comprises a first feeding module, a first mechanical arm and first automatic film sticking equipment. The automatic film sticking device comprises a feeding module, a first mechanical arm and a first automatic film sticking device, wherein the feeding module is used for conveying a front cover in a groove body positioning and pushing mode, the first mechanical arm is used for grabbing the front cover from the feeding module, and the first automatic film sticking device is used for sticking a film at a corresponding position of the front cover.

To more clearly illustrate the specific assembly operation of the front cover loading and laminating station 20 of the present application, as an example, the present application proposes a specific front cover loading and laminating station, as shown in fig. 2, the front cover loading and laminating station 20 including: a front cover shell material tray 21 (namely a first feeding module), a first mechanical arm 22, a first automatic labeling and visual detection device 23, a front cover feeding mechanism 24, a battery installation device 25 and a section of the conveying line 10 positioned in the station.

Particularly, this protecgulum casing charging tray 21 adopts the mode transmission protecgulum of cell body location propelling movement, for example, protecgulum casing charging tray 21 adopts cell body location propelling movement mode, places 20 protecgulums in every inslot, totally 5 cell bodies, can place 100 protecgulums at every turn, and the material need be placed once in about 2.7 hours. The first robot arm 22 picks up the front cover from the first feeding module and then applies the film to the front cover at a corresponding position, which is a position to be marked or protected by the film, predetermined when designing the product, by the first automatic labeling and visual inspection apparatus 23. Furthermore, whether the film sticking position and the front cover reserved hole position are proper or not is detected through visual equipment, the front cover subjected to film sticking is placed into a tray by a front cover feeding mechanism 24 and is transmitted to a buzzer glue sealing station 30 through a conveying line 10, unqualified products are detected, blanking is carried out through a mechanical arm of the next station, and the next procedure is automatically finished on qualified products.

It should be noted that, in this embodiment, the front cover and the rear cover of the non-metal housing product are combined into a complete housing, where the proportion of the front cover in the housing is large and can be regarded as the front cover approximately, that is, this station can also be regarded as including the housing feeding module. The front cover feeding and laminating station 20 illustrated in fig. 2 further includes a battery installation device 25, that is, the front cover feeding and laminating station 20 can be installed in the present station by the battery installation device 25, which is to fully utilize space in an actual application scenario.

The buzzer sealing station 30 is used for loading the buzzer, sealing the buzzer and blanking the front cover which does not pass visual detection.

Specifically, in an embodiment of the present application, the sealing station 30 for the buzzer includes: the flexible manipulator is used for grabbing the buzzer from the buzzer tray and placing the buzzer at the first dispensing machine; the first glue dispenser is used for sealing the buzzer.

And a battery and circuit board mounting station 40 for assembling the battery and welding the wiring harness of the sealed buzzer and the wiring harness of the battery on the circuit board.

In this embodiment, the battery and circuit board mounting station 40 includes: the battery welding device comprises a second mechanical arm, a plurality of manual welding sub-stations and a reserved mechanical welding station, wherein the second mechanical arm is used for assembling a battery; and manually welding the circuit board at a plurality of manual welding sub-stations. And a mechanical welding station is reserved for transforming a manual welding process in the follow-up process, and automatic welding is carried out by arranging automatic welding equipment to be researched and developed on the mechanical welding station, so that occupied human resources are further reduced, and the intelligent level of circuit board welding is improved.

It should be noted that, in the process of soldering the circuit board, both the cable of the buzzer and the cable of the battery need to pass through the hole of the circuit board and be in butt joint with the cable of the circuit board, after the butt joint, the cable of the buzzer is soldered on the circuit board, and the charging spring piece on the circuit board needs to be fully soldered. Among the above-mentioned various welding jobs, receive the cable uncontrolled state to answer county, at present difficult utilization arm is controlled, consequently can only rely on artifical manual assembly, and among the correlation technique, does not have the automated production success case that can reference, for guaranteeing that non-metallic housing product accomplishes the assembly smoothly, this part is accomplished by the manual work temporarily, but this application has reserved mechanical welding station, can develop relevant automatic weld equipment in follow-up, improves the circuit board welding flow.

And the visual detection station 50 is used for detecting the film sticking position, the film sticking direction and the reserved hole positions of the front cover and the welding condition of the circuit board. In the present embodiment, the vision inspection station 50 includes a plurality of industrial cameras and vision inspection subsystems, wherein the plurality of industrial cameras are respectively disposed at the front cover loading and laminating station 20 and the battery and circuit board mounting station 40, and the plurality of industrial cameras are used for acquiring images of the front cover and the circuit board; a visual detection subsystem, specifically to: the method comprises the steps of collecting images collected by a plurality of industrial cameras, filtering the images, obtaining a function equation of each filtered image, and finally carrying out image morphological analysis based on the function equations.

In one embodiment of the present application, the vision inspection station 50 may use a photographing system of keyence, which is connected to an interface of the PLC for communication data management, to perform inspection of the position and direction of the film attachment and inspection of the soldering sequence of the circuit board through vision inspection.

In specific implementation, as a possible implementation manner, fig. 3 is a flowchart of a visual inspection method provided in the present application. As shown in fig. 3, the visual inspection method includes the steps of:

step S301: the visual inspection subsystem is initialized.

Step S302: the platform controller receives and sends instructions.

The platform controller 70 receives a command for performing a visual inspection sent by the visual inspection subsystem, and sends a command for performing a related operation to the device performing the visual inspection, for example, a command for acquiring an image signal is sent by an industrial camera of the device at a different position in the visual inspection station 50.

Step S303: and collecting image signals.

Specifically, if the instruction received by the platform controller 70 is correct, an image signal may be collected, where the image signal may include an image collected by the industrial camera of the position of the film, the direction of the film, and the welding direction of the circuit board wire harness, so as to detect the position of the film, the direction of the film, and the welding direction of the circuit board wire harness based on the collected image in the following.

Step S304: and (5) filtering.

In this embodiment, the collected image signal is filtered by a preset filter. For example, the filter may use a convolution kernel to extract features of the collected image to eliminate noise in the image, so that the image becomes smoother for subsequent analysis.

Step S305: and (5) processing an image function.

In this embodiment, through the processing of the image function equation, the color and the contrast of the image after the processing of the filter can be changed, and the image can be translated or inverted, so that the image is more beneficial to subsequent observation and analysis.

Step S306: and (5) image morphological analysis.

In the embodiment, the image is analyzed based on the form, and the structural elements with certain forms are used for measuring and extracting the corresponding shapes in the image, so that the image is analyzed and recognized. The actual form of the patch and the strands in the image, such as the orientation of the patch on the front cover, is determined. And comparing the actually detected form with the expected target form of the part, and judging whether the assembly is qualified or not.

Step S307: the platform controller receives the processing result.

Specifically, the platform controller 70 receives the visual detection result, determines the next processing flow of the product according to the detection result, and may display the detection result to the relevant person in the following.

Therefore, whether the film sticking position is correct, whether the film sticking direction is wrong or not and whether the circuit board wire harness welding direction is wrong or not can be detected through the processing of the visual detection system, the assembly processing is ensured to meet the requirements of appearance and process, and the flexibility and the automation degree of production are improved.

As another possible implementation manner, during the detection, after the images of the front cover and the circuit board are collected, the collected images may be analyzed by a related technical means of image recognition to determine the forms of the objects such as the film and the wire harness in the images, so as to detect whether there is an error in the assembly. The image recognition method mainly comprises the following steps: the method comprises the steps of image acquisition, image preprocessing, image segmentation, feature extraction, judgment matching, classifier design and classification decision, wherein the main features of a front cover and a circuit board are extracted through the steps to judge whether the film pasting position is correct, whether the film pasting direction is wrong, whether the circuit board wire harness welding direction is wrong, and whether the assembly machining meets the requirements of appearance and process. The specific implementation process of each step may refer to implementation manners in related technologies, and details are not described herein.

And a rear cover mounting and marking station 60 for mounting a circuit board, sealing the housing with glue, and completing mounting, film pasting and marking of a rear cover of the non-metal housing product.

In one embodiment of the present application, the back cover mounting and marking station 60 includes: uniaxial screw machine, second glue dispenser, rotary table mechanical equipment, second feeding module, third mechanical arm, four-axis screw machine, second automatic film sticking equipment and automatic marking equipment.

In order to facilitate understanding of the arrangement and implementation functions of the above devices, as an example, the present application provides a schematic structural diagram of a rear cover installation and marking station for a non-metal casing product, which is shown in fig. 4. As shown in fig. 4, the rear cover mounting and marking station 60 includes: a rear cover shell material tray 61 (namely a second feeding module), a third mechanical arm 62, a four-shaft screw machine 63, a turntable mechanical device 64, a second automatic labeling and visual detection device 65, a rear cover feeding mechanism 66 and a section of conveying line 10 positioned in the station. In this embodiment, fig. 4 shows some key devices, wherein a single-shaft screw machine and a second dispenser are not shown in fig. 4, and the single-shaft screw machine is used for mounting the circuit board after welding; the second glue dispenser is used for sealing the shell; a turret mechanical device 63 (i.e. a quarter turret) for clockwise rotation, transferring the pieces to be processed to the different stations; a rear cover shell material tray 61 for conveying the shell and the rear cover after being sealed; a third robot arm 62 configured to grasp a preceding workpiece and assemble a rear cover, where the preceding workpiece includes a component processed through each of the stations, for example, a housing on which a circuit board and a sealant are mounted and a rear cover grasped; a four-axis screw machine 63 for screwing screws on the rear cover assembly; and a second automatic labeling and visual inspection apparatus 65 for film-attaching and marking the filmed rear cover at a corresponding position of the rear cover, and performing visual inspection.

And, in this embodiment, the back cover mounting and marking station 60 further includes: and (5) manually sampling and checking the sub-stations. The third mechanical arm 62 is further used for blanking and stacking the assembled non-metal shell products; and the manual sampling inspection sub-station is used for sampling inspection on the assembled nonmetal shell product.

Further, in this embodiment, when performing the selective examination, the worker is required to manually call the material at the manual selective examination sub-station, and the third mechanical arm 62 is controlled to stop the stacking and transmit the assembled non-metal shell product to the manual selective examination sub-station.

In order to more fully explain the specific operation flow of the rear cover mounting and marking station 60, a specific embodiment in practical application is described again below, the rear cover mounting and marking station 60 can complete the mounting of the circuit board by the single-shaft screw machine, the tray placing and conveying line 10 is conveyed to the second dispenser, the second dispenser is used for sealing the whole shell, and then the automatic film pasting and mounting of the rear cover are performed. Specifically, the station can utilize the turntable mechanical device (i.e. the annular quarter turntable) 64 to rotate clockwise to transfer the rear cover assembly to be processed to different stations, for example, the rear cover housing tray 61 pushes the rear cover assembly workpiece to be picked up by the third mechanical arm 62 and placed on the turntable mechanical device 64, and the third mechanical arm 62 can pick up the rear cover when the turntable mechanical device 64 rotates 90 ° to the rear cover feeding mechanism 66 for assembly; then, the workpiece rotates 90 degrees to the four-axis screw machine 63 on the turntable mechanical equipment 64, and the four-axis screw machine 63 automatically screws 4 screws; then, the workpiece is automatically labeled by rotating the turntable mechanical device 64 by 90 ° to the second automatic labeling and visual inspection device 65, and finally, the workpiece is blanked and then capped by rotating the turntable mechanical device 64 by 90 ° to the cap attaching mechanism 66. Wherein, second automatic labeling and visual inspection 65 is a subassembly in the flexible assembly auxiliary device, and usable laser marking machine realizes that laser marking and through visual inspection after, finally carry out unloading and pile up neatly by third arm 62. And in the manual sampling inspection sub-station, a certain number of products can be periodically and randomly selected from the stack by an inspector for inspection, so that the assembled products are prevented from being unqualified in large-scale quality.

Through experimental verification, the automatic assembly platform system for the non-metal shell product is calculated according to a single working system and double-station parallel operation during automatic assembly, each working system works for 8 hours, the working time of each working system is 300 days each year, the daily yield of 300 pieces can be realized, the annual yield is 9 thousands pieces, the daily yield is far higher than that of the previous working system, and the daily yield of 200 pieces is about 7.5 hours each person. Therefore, the automatic assembly platform system of the non-metal shell product can save workers and greatly improve the assembly efficiency.

Based on this, this application is based on the flexible auxiliary device of each station, according to the equipment characteristic of non-metal product, designs the assembly auxiliary operation module of each product, realizes the automatic switch-over of different modules through quartile rotary platform to the automated production of the different products of line is produced in the matching.

The platform controller 70 is in communication with the main control module 80 and the controlled devices in each station, and the platform controller 70 is configured to control the controlled devices to perform corresponding operations according to instructions sent by the main control module 80.

In the embodiment, based on the control requirement of the system of the automatic assembly line platform for the non-metal shell, the process flow is optimized, the automatic assembly line platform for the non-metal shell selects a PLC with a model number of siemens S7-1200CPU1214C as the controller 70, and S7-1200 is a short name of SIMATIC S7-1200, is a compact and modular PLC, and can complete tasks such as simple logic control, high-level logic control, HMI (Human Machine Interface, human-computer Interface) and network communication. The CPU body of S7-1200 is provided with a PROFINET communication interface, and supports Ethernet and communication standard based on MODBUS TCP Ethernet. The communication interface can realize the data communication between the S7-1200CPU and the main control computer MES system and the communication between the mechanical arm, the visual detection and other equipment, and can meet the requirement of real-time control data exchange. Specifically, in this embodiment, the MES system may send an instruction to control the PLC device main control program, and for example, the MES system may send an instruction to control the flexible manipulator to grab and place the buzzer, and control the manipulator to grab and place the battery for operation, so as to implement the detection of the film sticking direction and position and the detection of the front and back of the circuit board welding harness, and implement the stepping action of the conveying line and the stacking of the finished products of the manipulator. Based on this, the main control module of the PLC can realize data communication exchange with different devices only by setting a program software data exchange mode table, thereby greatly simplifying the workload and difficulty of a programming link.

It should be noted that, in this embodiment, in order to implement the control function, an IO communication module is added to the PLC apparatus to implement data exchange of the RS-485 communication protocol. And then, the signal function of the communication module is started by setting an input/output port, the parameter setting of the module adopts a self-contained serial port debugging tool, serial port debugging software is installed on an industrial personal computer, and the distribution of a PLC control system is shown in the following table 1.

TABLE 1 PLC control system IO Point Allocation Table

And in the embodiment, the controlled device is accessed to the automatic assembly platform system through an ethernet interface of the siemens S7-1200CPU1214C programmable logic controller PLC based on the PROFINET bus, the siemens S7-1200CPU1214C programmable logic controller PLC communicates with the controlled device in a TCP mode, and performs data interaction with the controlled device through an instruction in the open user communication OUC.

And in the embodiment, the communication function of the PLC main control module of S7-1200 is very complete, the mechanical arm in the automatic assembly line platform system device for the non-metal shell and the PLC communication belong to third-party communication connection, the mechanical arm equipment needs to use an Ethernet interface of S7-1200 and is based on a PROFINET bus access system, and the OUC communication service of the PLC is communicated with the robot. The OUC communication service has three connection modes, namely ISO-on-TCP, TCP/IP and UDP. The procedure for establishing a connection and the called communication function are the same regardless of which interface and which connection type are used.

It should be noted that, since TCP can provide connection-oriented data communication, can flexibly communicate with an external system, and has a large communication data volume, a TCP mode is selected as a connection type of the PLC and the robot arm communication service, and the TCP mode has mainly a mode of TSEND _ C, TRCV _ C, TCON, and the like as a connection function. TSEND _ C is a sending instruction with a connection function, and can automatically generate a background data block after being called; the TRCV _ C receives an instruction with a connection function and can automatically generate a background data block after being called; the TCON is required to call the TCON to establish a connection if an instruction without a connection function is used, and is not required to call the instruction if an instruction with a connection function is used, but a background data block needs to be allocated. And the maximum number of communication bytes can be 8192, and the stability of communication data is ensured by establishing two communication links. The communication establishment of the PLC and the mechanical arm is completed through communication parameter configuration, the client is set as a unit for actively establishing connection, and the other end of the client is set as a server. The PLC sends and receives data to the mechanical arm by using TSEND _ C and TRCV _ C instructions, the data communicated between the PLC and the mechanical arm at each time is 26 bytes, the data sent by the PLC is 22 bytes, and the data returned by the mechanical arm is 4 bytes.

Fig. 5 is a schematic structural diagram of a PLC communication chip of an automatic assembly platform system for a non-metal housing product according to the present application. As shown in fig. 5, the corresponding meaning of each pin in the first module WhiteFOX on the left side is as follows, REQ: activate command, using 0.5HZ pulse, rising edge trigger; CONT: when the CONT is 1, the connection is kept all the time, and when the CONT is 0, the connection is disconnected after the data transmission is completed, which is kept all the time in the embodiment of the present application; CONNECT: connecting a data receiving address of the communicating PLC; DATA: the address of the data to be transmitted by the local PLC, that is, the data transmitted by the PLC is 22 bytes; BUSY: state parameters, when BUSY is 0/false, data transmission is not started or completed, and when BUSY is 1/true, data transmission is not completed and new data transmission cannot be started; DONE: the transmission is finished, and when the transmission is TRUE, the time of one scanning period is kept; the STATUS: a state; ERROR: when ERROR is 0/false, there is no ERROR, and when ERROR is 1 or true, there is an ERROR.

And, the corresponding meaning of each pin in the second module ReadFOX on the right side is as follows, EN _ R: enabling the request, and enabling to receive data when EN _ R is 1; DATA: the storage address of the data received by the local PLC is addressed by using a pointer, namely, the data returned by the mechanical arm is 4 bytes, and in conclusion, the data communicated by the PLC and the mechanical arm every time is exchanged into 26 bytes; CONT, CONNECT, BUSY, STATE, DONE, and ERROR, please refer to the corresponding description of pins in WhiteFOX. Based on this, introduce the communication chip that this application provided and can make arm and the PLC platform among the nonmetal casing automatic assembly line platform system device carry out the communication.

In the embodiment of the application, aiming at the characteristics of non-metal shell products, the execution actions of all procedures of each non-metal product production are combed, a mechanical arm beat library matched with single actions and a relation model of beat time and labor complexity curve are established, the coherent connection between each execution action and each procedure is researched, the speed matching with a conveyor belt and the seamless connection technology between each mechanical arm are provided, the efficient optimal solution of the mechanical arm actions of the segmented unit line machine is provided through experimental simulation, the accurate execution of the mechanical arm during the production of different product production lines is further researched, and finally, the automatic flexible production is realized.

From this, this an automatic assembly platform system for nonmetal casing product can make multiple operation procedure realize automatic standardization, reduces artificial equipment trouble, promotes production efficiency to, fine solution PLC and third party's equipment communication problem, realized the automatic assembly of the small-size product of nonmetal casing.

To sum up, the automatic assembly platform system for the nonmetal shell product utilizes the master control module of the PLC and sets the program software data exchange mode table to realize data communication exchange between different devices, thereby greatly simplifying the workload and difficulty of a programming link. The system can realize automatic assembly standardization of various non-metal shell products, flexible design of the non-metal shell automatic assembly products, identification card assembly, convenient protocol assembly and assembly of related products; the automatic folding forming and the automatic box sealing of the product package are realized, and the labor and the working hours are saved; the automatic conveying line is designed in a segmented mode, the scheme of the device is optimized, and energy consumption is saved while assembly is met; the platform device is provided with an Ethernet port and an RS485 interface, so that other functions can be conveniently and subsequently expanded. That is, this application can realize making multiple operating procedure realize automatic standardization, reduces artificial equipment trouble, promotes production efficiency to and, the fine communication problem of having solved PLC and third party equipment has realized the automatic assembly of the small-size product of non-metal housing.

To facilitate understanding of the specific process of assembling the assembly platform system, a specific embodiment is described below, fig. 6 is a schematic structural diagram of a specific automatic assembly platform system for a non-metal casing product according to an embodiment of the present application, fig. 7 is a process flow diagram of the automatic assembly platform system for a non-metal casing product according to the present application, and the specific process of automatically assembling a non-metal casing is described in detail below with reference to fig. 6 and 7.

As shown in fig. 6 and 7, the process flow of the platform system device for the automatic assembly line of the non-metal shell includes:

firstly, a front cover shell material tray 21 pushes the front cover shell material, the front cover shell material is grabbed to a first automatic labeling and visual detection device 23 by a first mechanical arm 22 for automatic labeling, whether a film sticking position and a front cover reserved hole position are proper or not is detected by a visual detection method, then the front cover is placed on a tray of a conveying line 10 by a front cover feeding mechanism 24 and is operated to a buzzer glue dispensing station; and discharging unqualified products by a flexible manipulator at the next station, and automatically finishing the next procedure of qualified products.

Then, the flexible mechanical arm grabs the buzzer from the buzzer charging tray and places in first point gum machine department, seal the buzzer, the second arm grabs the battery from the battery charging tray and assembles the battery at battery and circuit board installation station 40 above the transfer chain, later pass the cable of buzzer, the cable of battery from the hole of circuit board through artifical at a plurality of manual welding sub-station 41, and with the cable butt joint on the circuit board, weld the cable of buzzer on the circuit board after the good connection, and carry out full weld through soldering tin machine with the spring leaf that charges on the circuit board.

Then, visual inspection is carried out through visual inspection equipment, defective products are removed, qualified products are placed on a conveyor line tray, after the circuit board of a workpiece is nailed through a single-shaft screw machine, a second dispenser is used for sealing the shell, then a rear cover shell material tray 61 pushes the rear cover shell material to a conveying line, a third mechanical arm 62 picks up the rear cover component workpiece and places the rear cover component workpiece on rotary table mechanical equipment 64 for assembly, the workpiece rotates to a four-shaft screw machine 63 position on the rotary table mechanical equipment 64, and the four-shaft screw machine 63 screwing equipment automatically screws 4 screws; thereafter, the workpiece is turned over and automatically labeled as the turret robot 64 rotates to the second automatic film application and visual inspection device 65.

Finally, the workpieces are rotated to the rear cover loading mechanism 66 by the turntable mechanical device 64, and are discharged and stacked into cartons (finished material trays) by the third mechanical arm 62.

In addition, in the present embodiment, the number in fig. 6 may represent the length and width of the land for planning of the area, which is in mm. Fig. 6 also shows other devices required in the actual assembly process of the automatic assembly platform system, such as storage areas of components like warehouse area stacking, battery circuit boards, etc., a robot control cabinet, an electric control cabinet, etc.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

In addition, in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An automated assembly platform system for non-metallic housing products, comprising: a conveying line, a front cover feeding and film pasting station, a buzzer glue sealing station, a battery and circuit board mounting station, a visual detection station, a rear cover mounting and marking station, a platform controller and a main control module,

the front cover feeding and film pasting station, the buzzer glue sealing station, the battery and circuit board mounting station and the rear cover mounting and marking station are sequentially arranged at corresponding positions of the conveying line;

the front cover feeding and film pasting station is arranged at the front part of the conveying line and is used for feeding a front cover of a non-metal shell product, pasting a film on the fed front cover and conveying the front cover subjected to visual detection to the buzzer glue sealing station;

the buzzer glue sealing station is used for loading a buzzer, sealing the buzzer and blanking a front cover which does not pass the visual detection;

the battery and circuit board mounting station is used for assembling a battery and welding the wiring harness of the sealed buzzer and the wiring harness of the battery on the circuit board;

the visual detection station is used for detecting the film sticking position, the film sticking direction and the reserved hole position of the front cover and the welding condition of the circuit board;

the rear cover mounting and marking station is used for mounting a circuit board, sealing the shell and completing mounting, film pasting and marking of the rear cover of the non-metal shell product;

the platform controller is communicated with the main control module and the controlled equipment in each station, and is used for controlling the controlled equipment to execute corresponding operation according to the instruction sent by the main control module.

2. The system of claim 1, wherein the front cover loading and laminating station comprises: a first feeding module, a first mechanical arm and a first automatic film sticking device, wherein,

the first feeding module transmits the front cover in a groove positioning and pushing mode;

the first mechanical arm is used for grabbing the front cover from the feeding module;

the first automatic film pasting equipment is used for pasting a film at the corresponding position of the front cover.

3. The system of claim 1, wherein the buzzer glue station comprises: a flexible manipulator and a first dispenser, wherein,

the flexible manipulator is used for grabbing the buzzer from a buzzer tray and placing the buzzer at the first dispenser;

the first glue dispenser is used for sealing the buzzer.

4. The system of claim 1, wherein the battery and circuit board mounting station comprises: a second mechanical arm, a plurality of manual welding sub-stations and a reserved mechanical welding station, wherein,

the second mechanical arm is used for assembling the battery;

and the circuit board is manually welded at the manual welding sub-station.

5. The system of claim 1, wherein the visual inspection station comprises a plurality of industrial cameras and a visual inspection subsystem, wherein,

the plurality of industrial cameras are respectively arranged at the front cover feeding and film pasting station and the battery and circuit board mounting station and are used for acquiring images of the front cover and the circuit board;

the visual detection subsystem is specifically configured to:

collecting the images acquired by the plurality of industrial cameras;

filtering the image;

acquiring a function equation of each filtered image;

and performing image morphology analysis based on the function equation.

6. The system of claim 1, wherein the back cover mounting and marking station comprises: a single-shaft screw machine, a second glue dispenser, a turntable mechanical device, a second feeding module, a third mechanical arm, a four-shaft screw machine, a second automatic film sticking device and an automatic marking device, wherein,

the single-shaft screw machine is used for mounting the welded circuit board;

the second glue dispenser is used for sealing the shell;

the rotary table mechanical equipment is used for conveying the workpieces to be processed to different stations through clockwise rotation;

the second feeding module is used for conveying the sealed shell and the back cover;

the third mechanical arm is used for grabbing a pre-arranged workpiece and assembling the rear cover;

the four-axis screw machine is used for screwing screws on the rear cover component;

the second automatic film pasting equipment is used for pasting a film at a corresponding position of the rear cover;

and the automatic marking equipment is used for marking the rear cover after the film is pasted.

7. The system of claim 6, wherein the back cover mounting and marking station further comprises: the sub-station is selected and checked manually,

the third mechanical arm is also used for blanking and stacking the assembled non-metal shell products;

and the manual sampling inspection sub-station is used for sampling inspection of the assembled non-metal shell product.

8. The system of claim 7, wherein during the selective inspection, a manual material calling is performed at the manual selective inspection sub-station, the third mechanical arm is controlled to stop stacking, and the assembled non-metal shell products are conveyed to the manual selective inspection sub-station.

9. The system of claim 1, wherein the platform controller comprises: a programmable logic controller PLC with the model of Siemens S7-1200CPU1214C,

the Siemens S7-1200CPU1214C programmable logic controller PLC comprises a PROFINET communication interface and an Ethernet interface, and is communicated with the main control module through an I/O communication module, and the input address and the output address of the Siemens S7-1200CPU1214C programmable logic controller PLC are distributed to transmit corresponding equipment control signals.

10. The system according to claim 9, wherein the controlled device is connected to the automatic assembly platform system through an ethernet interface of the siemens S7-1200CPU1214C programmable logic controller PLC based on a PROFINET bus, and the siemens S7-1200CPU1214C programmable logic controller PLC communicates with the controlled device in a TCP mode and performs data interaction with the controlled device through instructions in the open user communication OUC.

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