KR102524784B1 - A integrated control system and method for part mounting devices - Google Patents

Abstract

A control server for setting a progress schedule of the entire work to be performed in at least one component mounting machine, and downloading the work of the individual part mounting machine from the set progress schedule of the entire work from the control server and producing a product according to the downloaded work An integrated control system including at least one component mounting machine performing a process is disclosed.
According to the present invention, a component mounting machine suitable for a production job is self-diagnosed and reported without operator intervention, so that the operator can quickly take action, so the driver's convenience and product production efficiency can be improved.

Description

Part mounting machine integrated control system and method {A integrated control system and method for part mounting devices}

The present invention relates to a method for integrating and controlling at least one component mounting machine through a network for adsorbing components with nozzles and mounting them on a board, and more particularly, in order to reduce the workload of an operator operating a component mounting machine, An integrated control system for automatically processing a plurality of tasks assigned to component mounting machines using a control server communicating with component mounting machines through a network.

Due to the recent miniaturization and integration of electric and electronic products, surface mounting technology (SMT) using a component mounting machine called a chip mounter used for assembly and production of printed circuit boards is becoming common. In general, surface mounting technology involves adsorbing a number of electronic components such as ICs, resistors and capacitors with nozzles in order to mount components of various sizes on printed circuit boards, and mounting them on various boards such as printed circuit boards or liquid crystal boards. It is a skill.

The component mounting machine used in this surface mounting technology includes a component supply device that supplies components to be mounted on a board, a board transport device that transports a board so that the components supplied by the component supply device can be mounted, and a component supply device supplied from the component supply device. After picking up the parts, it is configured to include a nozzle, a head assembly having a spindle, and a gantry for moving the head assembly in the x and y directions so as to mount the picked up parts on a board.

Conventionally, since it was not possible to automatically set the number of productions for each of these component mounting machines, an operator downloads several jobs in order from a control solution server PC (hereinafter referred to as a control server), and then each I had to go in front of the component mounting machine and set up the device one by one according to the task. Even after that, since the component placement machine starts production without performing status checks and diagnoses, if a problem occurs in a particular component placement machine, the operator goes back to the component placement machine to check what kind of error has occurred, and solves the problem accordingly. I had no choice but to find and take action. In addition, after the driver took these measures, he went to the control server, downloaded the next job again, and returned to the component mounting machine to repeat the above process.

According to the conventional component mounting machine control method, there is a problem that the number of movements and manipulations of the operator is excessively large. In particular, even after all the corresponding tasks have already been set in the control server, it is necessary to check whether the corresponding task is suitable for each component mounting machine (setup check), and to check individual security (whether the operator has authority for a specific component mounting machine) or not, The equipment may be started without prior knowledge of detectable faults. This situation eventually means that when an error occurs, each action must be taken by the corresponding component mounting machine.

Therefore, according to the current trend of building a smart factory, it is very important to reduce the waste of time and resources by minimizing the number of movements and operations by drivers. Furthermore, it is necessary to minimize the number of manpower operating the component mounting machine line, to automatically produce products in a desired quantity without separately monitoring each component mounting machine, and to identify all detectable problems in advance. In addition, if these problems are discovered in advance, the driver should be notified in advance or a solution should be presented so that the discovered problems can be quickly resolved.

Japanese Patent Publication No. 5206583

The technical problem to be achieved by the present invention is to reduce the number of movements and manipulations of a driver between a control server and a component mounting machine (chip mounter) in surface mounting technology, and set the number of production of multiple jobs only once at the beginning. It is to automatically perform diagnosis, error reporting, and production of the component mounting machine according to the above tasks only by doing so.

Another technical problem to be achieved by the present invention is to report problems in production in advance by automatically opening jobs sequentially in each component mounting machine and performing self-diagnosis suitable for the job if the operator only schedules in the control server. is to do

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention for achieving the above technical problem, a control server for setting a progress schedule of the entire work to be performed in at least one component mounting machine, and individual among the progress schedules of the entire work set from the control server As an integrated control system including the at least one component mounting machine that downloads the work of the component mounting machine and performs a product production process according to the downloaded work,

The at least one component mounting machine may include a user interface unit that displays the downloaded job to a driver and receives a command from the driver; an allocation task controller that determines an order of the downloaded tasks and a production quantity according to the tasks according to the input user command; a process device unit performing a production process of a current operation according to the determined production quantity; and an error diagnosis unit that checks a plurality of diagnostic items according to the current task before the production process of the current task is performed to determine whether an error exists and provides error information to the driver if the error exists. .

According to the present invention, a component mounting machine suitable for a production job is self-diagnosed and reported without operator intervention, so that the operator can quickly take action, so the driver's convenience and product production efficiency can be improved.

In addition, according to the present invention, it is possible to save time and resources by pre-diagnosing a production quantity suitable for a corresponding operation in a company that produces several types instead of a single type.

In addition, according to the present invention, by minimizing the driver's access to the individual component mounting machine, it is possible to easily perform equipment diagnosis and production without having to manually operate in front of the individual component mounting machine.

1 is a view showing an external appearance of a component mounting machine according to an embodiment of the present invention.
2 is a diagram showing the overall configuration of a component mounting machine integrated control system according to an embodiment of the present invention.
3 is a block diagram showing a component mounting machine integrated control system according to an embodiment of the present invention in more detail.
4 is a view showing a screen display showing details of work assigned to an individual component mounting machine.
5 is a diagram showing a screen display indicating an error diagnosis result.
6 is a flowchart illustrating an integrated control method for a component mounting machine according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

In addition, the embodiments described in this specification will be described with reference to perspective views, cross-sectional views, side views and/or schematic views, which are ideal exemplary views of the present invention. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and/or tolerances. Therefore, embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes generated according to manufacturing processes. In addition, in each drawing shown in the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of explanation.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A component mounting machine (chip mounter, 100) according to the present invention shown in FIG. 1 generally includes a component supply unit, a board transfer unit for transferring a board on which components are mounted, and a moving material on one side of the component mounting machine 100. An XY transfer unit including an X-axis arm tree and a Y-axis arm tree disposed on the upper side may be provided.

In the component supply unit, a plurality of tape feeders accommodating a plurality of components are installed, and in the XY transfer unit, an adsorption head having an adsorption nozzle for adsorbing the component from the component supply unit and mounting the component on a substrate moves in the vertical direction. is mounted on

In the adsorption head unit, a substrate recognizing camera installed on the support member and photographing the substrate from above and its lighting are mounted. In addition, for example, a component recognition camera for photographing the component adsorbed to the suction nozzle from below and its lighting may be additionally installed on one side of the component supply unit.

In addition, a sensing means (eg, a laser unit) for checking the existence or shape of a part adsorbed to the adsorption nozzle is disposed in the adsorption head unit. In addition, an operation monitor of the component mounting machine 100 is disposed above the component mounting machine 100 .

In addition, a control unit for processing images taken by the board recognition camera or the component recognition camera and performing various controls may be disposed below the normal component mounting machine 100 .

2 is a diagram showing the overall configuration of the component mounting machine integrated control system 10. As shown in FIG. 2, a plurality of component mounting machines 100a, 100b, and 100c on a factory or floor (three examples in FIG. 2, but not limited thereto) are connected to a network 50 ) can be managed remotely. The network 50 may be a wireless network, but it is more preferable to be a wired network supporting a wired communication method such as Ethernet and PLC (power line communication) considering the environment in a factory where component mounting machines are driven. . To this end, the control server 200 and the component mounting machines 100a, 100b, and 100c are provided with a wired communication module (not shown) including a wired communication adapter of the same network standard.

Meanwhile, the component mounting machines 100a, 100b, and 100c may further include wireless communication modules 105a, 105b, and 105c including wireless communication adapters apart from these wired communication adapters. The wireless communication adapter supports standardized or non-standardized wireless communication schemes such as wireless LAN (WLAN), wireless personal area network (WPAN), long term evolution (LTE), and Bluetooth. The wireless communication modules 105a, 105b, and 105c have a function of reporting an error of a specific component mounting machine and a method of action in real time to a driver's terminal located remotely.

As another embodiment, in the present invention, considering that the control server 200 can receive reporting of error information generated from the component mounters 100a, 100b, and 100c, the component mounters 100a, 100b, 100c) may not include these wireless communication modules 105a, 105b, and 105c, and only the control server 200 may include the corresponding wireless communication module. That is, when error information generated by the component mounting machines 100a, 100b, and 100c is transmitted to the control server 200, the control server 200 wirelessly transmits the error information to the driver's terminal and reports it.

3 is a block diagram showing a component mounting machine integrated control system 10 according to an embodiment of the present invention in more detail. The integrated control system 10 includes at least a control server 200 and at least one component mounting device 100a, and further includes other component mounting devices 100b and 100c similar to the component mounting device 100a. can do.

The control server 200 is a device that interworks with the component mounting machines 100a, 100b, and 100c through a network so as to integrate and manage the progress schedule of the entire work to be performed in the component mounting machines 100a, 100b, and 100c. , It may be configured to include an overall task setting unit 210, a user interface 220, a command input unit 230, a display panel 240 and a communication module 290.

The overall task setting unit 210 sets a progress schedule for all tasks including tasks to be performed in at least one component mounting machine 100a, 100b, and 100c according to the command of the operator 30. The entire task setting unit 210 may receive a command from the driver 30 or provide information to the driver 30 in conjunction with the user interface 220 .

The user interface unit 220 is usually implemented as a graphical user interface (GUI), and renders and provides a screen screen capable of displaying various information and receiving a specific command from a user. The screen image thus rendered is finally delivered to the driver 30 by being displayed on the physical panel (display panel 240). The display panel 240 may be implemented as a light emitting diode (LED), a liquid crystal display (LCD), an organic light emitting diode (OLED), or other various visual information display means. In addition, the command input unit 230 is a tool for receiving commands from a user, and may be implemented with various types of known input tools such as a touch array sensor, a keyboard, and a mouse. The command input from the user is transmitted to the overall task setting unit 210 via the user interface unit 220 again.

Through this process, the entire job setting unit 210 sends a job scheduling list of jobs to be performed in the component mounting machines 100a, 100b, and 100c to the component mounting machines 100a, 100b, and 100c through the communication module 290. send. This job scheduling list may be configured in various formats, but illustratively includes a component mounting machine identifier field, a work file field, a project field, and a set time field. The identifiers of the component mounting machines 100a, 100b, and 100c mean unique IDs of the component mounting machines, and the work file means an electronic document including details of specific tasks set for each task. A project is a larger unit that can contain multiple tasks, but a single task can also be included in a project. Also, the set time means the time at which the driver 30 sets task scheduling for a specific task.

The communication module 290 supports wired communication methods such as Ethernet and PLC, but is not limited thereto and may additionally support standardized or non-standardized wireless communication methods such as WLAN, WPAN, LTE, and Bluetooth. The communication module 290 not only transmits the job scheduling list generated by the entire job setting unit 210 to the component mounter 100a, but also receives error information or job completion information confirmed by the component mounter 100a. The received error information or task completion information may be displayed to the driver again through the display panel 240 or may be wirelessly transmitted to the driver 30 through the wireless communication method of the communication module 290 .

Referring back to FIG. 3 , the component placement machine 100a performs an error check on its own before proceeding with the task allocated from the control server 200, and if there is an error during execution, the driver 30 provides error information (of the error). type, location of error and how to take action, etc.), otherwise it is a device that proceeds with normal parts mounting work.

The component mounting machine 100a includes, in detail, an assignment operation controller 110, a user interface 120, a command input unit 130, a display panel 140, an error diagnosis unit 150, a device driver 160, a physical process It may be configured to include a device unit 170 and a communication module 190 .

The communication module 190 is a transceiver having a communication standard compatible with the communication module 290 of the control server 200 and may be basically implemented in a wired communication method, but may additionally support a wireless communication method. The communication module 190 receives (downloads) a job scheduling list from the control server 200 and transmits (uploads) error information or job completion information confirmed in the component mounting machine 100a to the control server 200 . At this time, the communication module 190 checks the component mounter identifiers in the job scheduling list, and extracts only job scheduling data (work file, project, set time, etc.) whose identifiers match the identifier of the component mounter 100a. do.

The assignment job controller 110 displays only the job scheduling data of the individual component mounting machine 100a from among the job scheduling data transmitted from the control server 200 to the driver 30 in conjunction with the user interface unit 120 . Specifically, the user interface unit 120 is usually implemented as a graphical user interface (GUI), renders a screen displaying the data, and displays the data to the driver 30 through the display panel 140 . The display panel 140 may be implemented with the same or different display elements as the display panel 240 of the control server 200 .

FIG. 4 shows an example of a screen screen 40 showing work history assigned to an individual component mounting machine, which is rendered by the user interface unit 120 and displayed on the display panel 140 . The screen screen 40 is largely divided into a task list area 42 and a task setting area 44. The work list area 42 is an area showing only a list of tasks performed in the corresponding component mounting machine 100a among the task scheduling lists set from the control server 200 . As shown in FIG. 4, each task list in the task list area 42 may be composed of a field of a task name (FileName), a field of a project name (ProjectName), a field of a set time (ModifiedTime), and the like. . Among the task list, tasks determined to be actually executed by the driver 30 are displayed in the task setting area 44 again. In the task setting area 44 , the driver 30 can add or delete a new task from among the tasks displayed in the task list area 42 , or modify the progress order of the displayed tasks. In addition, the driver 30 may input or modify the production quantity for each added job through the job setting area 44 . Such commands of the driver 30 may be input through the command input unit 130 and executed using the user interface unit 120 . The command input unit 130 is a tool for receiving commands from a user, and may be implemented with various types of known input tools such as a touch array sensor, a keyboard, and a mouse.

When all the commands of the driver 30 are input through this process, the allocation task controller 110 determines the type of tasks to be processed, the order of processing and the quantity of production, that is, the task details, and accordingly, the current task After loading into the memory, a command for performing a production process related to the current job is transmitted to the process device unit 170 through the device driver 160. The device driver 160 is software dedicated to the process device unit 170 enabling command transmission between the physical process device unit 170 and the assigned task controller 110 .

When a task execution command is transmitted through the device driver 160, the process device unit 170 does not immediately perform the task, but first automatically detects whether or not there is an error in order to diagnose an error related to the task. To this end, the process device unit 170 uses a sensor unit 174 provided therein. The sensor unit 174 may be implemented with various sensors such as a camera sensor, a temperature sensor, a light sensor, and a magnetic field sensor, and through this, it is possible to determine what kind of error occurred and where, that is, the type and location of the error. . The error information detected by the sensor unit 174 is transferred to the error diagnosis unit 150 through the device driver 160, and is rendered on the error diagnosis screen in the user interface unit 120 to display the display panel 140. displayed to the user via

5 is a diagram showing an example of the error diagnosis screen 60. The error diagnosis screen 60 can be largely divided into a sequential diagnosis list area 62 and an error information display area 64. The sequential diagnosis list area 62 is composed of a plurality of diagnostic items displayed sequentially. These multiple diagnostic items include, for example, the driving type of the equipment (Running Type), whether production is normally possible (Cycle Check), whether there are any skipped items (Place Sip), and whether the software parameters are set normally. (System Parameter Check), whether the hardware input/output (I/O) signals of the equipment are normal (I/O Check), whether there is an abnormal board in the equipment (Station Unknown Board Check), whether the width of the conveyor is adjusted to suit the work (Conveyor Width Adjustment), whether the docking cart to be used for production is properly mounted (Docking Cart Clamp Check), whether the feeder to be used for production is of the correct type and properly installed (Feeder Type Check, Feeder Supply & Home Check), and other surroundings to be used. It includes various error diagnosis items such as whether the equipment is installed (Peripheral Unit Check) and whether the camera is hardware-free (Camera Unit Check). Among the plurality of items, an item irrelevant to the corresponding job may be skipped.

If there is an item in which an error has occurred through such error diagnosis, detailed error history of the corresponding item is displayed in the error information display area 64 . Referring to FIG. 5 as an example, the driver 30 has an error in the System Parameter Check item, and the detailed details of the error indicate that the scale parameter of the fiducial camera is incorrectly set.

When an error occurs in this way, the error diagnosis unit 150 may simply display the error information (and/or action method) through the display panel 140 of the corresponding component mounting machine 100a as shown in FIG. It may be reported to the control server 200 through the wired communication method of the communication module 190 or remotely reported to the terminal of the driver 30 through the wireless communication method of the communication module 190 . The operator 30 may solve the problem of the component mounting machine 100a based on the reported error information (and/or action method) and then proceed with the interrupted work again.

Thereafter, when the error diagnosis unit 150 diagnoses that there is no error, the mounting device 172, which is a mechanical part of the process device unit 170, proceeds with a normal component mounting process to produce a product according to the corresponding operation. The mounting device 172 generally includes a component supply device for supplying components to be mounted on a board, a board transport device for transporting a board so that the components supplied from the component supply device can be mounted, and the component supply device. It may include a head assembly having a nozzle and a spindle, and a gantry for moving the head assembly in the x-direction and the y-direction so as to mount the picked-up parts on a board after picking up the parts supplied from the head assembly.

When production is completed for the current job through this process, the same process is performed for the next job after the current job displayed in the job setting area 44 of FIG. It repeats until the task is complete.

Up until now, each component of FIG. 3 has been implemented in software such as a task, class, subroutine, process, object, execution thread, or program performed in a predetermined area of memory, a field-programmable gate array (FPGA) or an ASIC ( It may be implemented in hardware such as an application-specific integrated circuit, or a combination of the above software and hardware. The components may be included in a computer-readable storage medium, or some of them may be distributed and distributed to a plurality of computers.

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). Also, in some alternative implementations, it is possible for the functions mentioned in the blocks to occur out of order. For example, two blocks shown in succession may in fact be executed substantially concurrently, and it is also possible that the blocks are sometimes executed in reverse order depending on their function.

6 is a flowchart illustrating an integrated control method for a component mounting machine according to an embodiment of the present invention. First, the overall task setting unit 210 of the control server 200 schedules all tasks including tasks to be performed in at least one component mounting machine 100a, 100b, 100c according to the command of the driver 30 (S305 ).

The assignment task controller 110 selects only the tasks to be handled by the corresponding component mounting machine 100a from among all the scheduled tasks, and according to the command of the driver 30, the task details (eg, tasks) for the selected tasks (S310)

When the current task among the selected tasks is referred to as an n-th task, the allocation task controller 110 loads the n-th task into memory and then issues a command for starting a production process for the n-th task to the process equipment unit ( 170) (S320).

At this time, the error diagnosis unit 150 performs sequential error diagnosis (eg, FIG. 5 ) for the n-th task based on sensor information provided from the sensor unit 174 of the process device unit 170 (S330). ). If it is determined that an error has occurred in this sequential diagnosis process and the diagnosis fails (No in S340), the error diagnosis unit 150 sends error information to the driver 30 through the display panel 140 or the communication module 190. reporting, and the n-th task is temporarily suspended (S370). Such error information may include the type of error, the location of the error, and a countermeasure method.

On the other hand, if it is determined that there is no error as a result of error diagnosis by the error diagnosis unit 150 and the diagnosis is successful (YES in S340), the production process according to the production quantity of the n-th operation is a mounting device of the process device unit 170 ( 172) is performed (S350).

Then, when the production process according to the nth task is completed, the assignment task controller 110 checks whether there is a next task after the nth task (S360), and if there is a task (No in S360), the task After increasing the identification number by 1 (S380), steps below S320 are repeated while loading the next task. Of course, if it is confirmed that the next task does not exist in step S360, all tasks in the component mounting machine 100a are terminated.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: component mounting machine integrated control system 40: work history screen
42: job list area 44: job setting area
60: Error diagnosis screen screen 62: Sequential diagnosis list area
64: error information display area 100, 100a, 100b, 100c: component mounting machine
110: assignment task controller 120, 220: user interface
130, 230: command input unit 140, 240: display panel
150: error diagnosis unit 160: device driver
170: process device unit 172: mounting device
174: sensor unit 190, 290: communication module

Claims (6)

a control server that sets schedules for all tasks to be performed in at least one component mounting machine;
An integrated control system including; the at least one component mounting machine that downloads work data of individual component mounting machines from the control server from the set overall work schedule and performs a product production process according to the downloaded work data, The at least one component mounting machine,
a user interface unit that displays the downloaded work data to a driver through a display panel and receives a command from the driver;
an allocation job controller that determines the order of jobs included in the downloaded job data and the quantity produced according to the jobs according to the input user command;
a process device unit performing a production process of a current operation according to the determined production quantity; and
Before the production process of the current job is performed, an error diagnosis unit checks a plurality of diagnostic items according to the current job to determine whether an error exists and, if the error exists, provides error information to the driver,
The process device itself is provided with a sensor unit,
When a work execution command is transmitted to the process equipment unit, the process equipment unit does not immediately perform the work, but automatically transmits error information of the type and location of the error through the sensor unit provided in the process operation unit itself before performing the work. , and the error information detected before performing the operation is transmitted to the error diagnosis unit, rendered on the error diagnosis screen in the user interface unit, and displayed to the user through the display panel;
The assignment task controller
When the error does not exist in the current job, after the production process of the current job is completed, the integrated control system automatically loads the next job of the current job without the operator's intervention. delete The method of claim 1, wherein the error diagnosis unit
At least one of a method of visually displaying the error information to the driver through a display panel, a method of transmitting the error information to the driver's terminal wirelessly, and a method of transmitting the error information to the control server. An integrated control system that provides error information to the driver. delete According to claim 1,
The user interface renders a screen screen for displaying the downloaded work data to the driver and displays it to the driver,
The screen screen includes a job list area for sequentially displaying jobs included in the downloaded job data, adding or deleting new jobs from among the displayed jobs, modifying the order of the displayed jobs, or producing quantities for the added jobs. Integrated control system with a work setting area for entering or modifying The method of claim 5, wherein the user interface unit,
An integrated control system that allows the driver to add or delete the jobs in the job setting area or modify the order of jobs in the job setting area.

Images