JP2012199319A - Electronic component attachment device - Google Patents

Abstract

[PROBLEMS] In particular, in a production type electronic component mounting apparatus in which production models are frequently switched due to high-mix low-volume production, the setup operation is executed during the time when the printed circuit board is being carried out to the post-process equipment or during the operation of waiting for carry-out. By performing a plurality of processes in parallel, it is possible to shorten the work time and improve productivity.
Based on the production order setting list, the next printed circuit board of the number of printed circuit boards of the model in production operation is transferred to the post-process device from the carry-out conveyor unit at a time during which the next print board is being carried out or waiting to be carried out next time. Perform setup operations for model production.
[Selection] Figure 6

Description

  The present invention relates to an electronic component mounting apparatus, and more particularly to shortening of a production model switching operation time.

Generally, an electronic component mounting apparatus is provided with a printed board supply device that conveys a printed circuit board on the upstream side, and a downstream device is further provided on the downstream side of the electronic component mounting device. When an electronic component is mounted on a printed board by an electronic component mounting apparatus, a production model switching operation is usually required depending on the type of printed board to be produced (production model). In the case of an electronic component mounting apparatus used for high-mix low-volume production, about 100 types of printed circuit boards are often handled per day.
When changing the production model of the printed circuit board in the electronic component mounting apparatus, (1) switching (changing) production model data and (2) setup change are performed (for example, refer to Patent Document 1). The setup switching is a setup operation such as replacement of nozzles used in the model or replacement of supply parts.

JP 2008-300459 A

As described above, in the electronic component mounting apparatus, in the production mode in which the number of switching of the production model is large due to the high-mix low-volume production, in order to improve the productivity, it is necessary to reduce the time required for the switching operation as much as possible. is there.
As operations at the time of production model switching, there are the operations (1) and (2) described above. Conventionally, however, (1) change (switching) of production model data cannot be performed while the printed circuit board before switching is present in the apparatus, and thus it has been necessary to wait for the printed circuit board to be carried out.
Also, (2) in the setup change operation, if the production model data is not switched, the data necessary for the operation cannot be determined. Therefore, the exchange operation is automatically executed until the production model data switching is completed. I could not.
In view of the above problems, an object of the present invention is to provide an electronic component mounting apparatus that can improve the setup change operation procedure, shorten the setup time, and improve the productivity.

In order to achieve the above object, the electronic component mounting apparatus according to the present invention is a post-processing device that removes the last printed circuit board of the number of printed circuit boards of a model in production operation from the carry-out conveyor unit based on the production order setting list. The setup operation for the next model production is executed during the unloading operation or waiting time for unloading.
In addition, when the last printed circuit board production (electronic component mounting) of the model in production operation is completed and the printed circuit board is in the unloading operation state or waiting for the unloading operation state, the next production model that the electronic component mounting device will produce Of the data necessary for the setup change operation to change to, register the data required for the setup change operation separately as a production procedure setting list, and refer to the production procedure setting list to replace the nozzle for the next model, etc. The changeover operation is executed in advance.

  That is, the electronic component mounting apparatus according to the present invention includes a mounting conveyor unit that mounts electronic components on a printed board, a supply conveyor unit that supplies the printed circuit board to the mounting conveyor unit, and a printed circuit board mounted with the electronic components. An unloading conveyor unit that transports from the mounting conveyor unit, a setup changing unit that changes the model of the printed circuit board, a model data switching unit that switches the model of the printed circuit board model, and a control program for the electronic component mounting device. ROM for storing, RAM for registering a production order setting list for registering the model name of the printed circuit board mounted on the electronic component mounting apparatus, the mounting order and the number of boards to be mounted, the setup change means, and the model data switching means The loading conveyor unit, the supply conveyor unit, the unloading conveyor unit, and the RAM. An electronic component mounting apparatus including a control unit that performs overall control based on a control program registered in the ROM, wherein the control unit is configured to control a last of models currently in production based on the production order setting list. When the mounting of the electronic component is finished, when the mounted printed circuit board starts to be transported and there is a model to be produced next, the automatic changeover means is controlled to perform the setup change operation. Is to do.

  In the electronic component mounting apparatus according to the present invention, the control unit performs the setup change operation by controlling the automatic setup change means even if the transport of the mounted printed circuit board is not completed.

  In the electronic component mounting apparatus of the present invention, the control unit is configured such that the last printed circuit board of the currently produced model that has reached the carry-out conveyor unit is carried out from the carry-out conveyor unit to a post-process device, and then the model The model switching is performed by controlling the data switching means.

In the electronic component mounting apparatus of the present invention, the ROM stores a plurality of production model data of the printed circuit board, and the RAM switches the production model data of the currently produced printed circuit board from the ROM. It is re-stored every time.
Preferably, in the electronic component mounting apparatus according to the invention, the production order setting list registered in the RAM includes a production model name to be produced (a name of a production model), a production order, and a production board number.
Preferably, in the electronic component mounting apparatus according to the invention, the production order setting list registered in the RAM further includes an electronic component mounting apparatus that is necessary for a setup operation among data necessary for setup of a next model. Data is registered.

According to the present invention, it is possible to speed up the start of mounting the printed circuit board of the next production model to be produced. Therefore, the operating rate of the electronic component mounting apparatus is improved.
Further, according to the present invention, in particular, in the electronic component mounting apparatus of the production form in which the number of switching of the production model is large due to the high-mix low-volume production, during the time of the operation of carrying out the printed circuit board to the post-process device or the operation of waiting for unloading, The setup operation can be executed, and by executing a plurality of processes in parallel, the work time can be shortened and productivity is improved.

It is a figure which shows the structure of one Example of the electronic component mounting apparatus of this invention. It is a figure which shows the control block structure of one Example of the electronic component mounting apparatus of this invention. It is a figure for demonstrating the production order setting list | wrist in one Example of the electronic component mounting apparatus of this invention. It is a flowchart for demonstrating one Example of the processing operation of this invention. It is a figure for demonstrating one Example of carrying out and carrying in of the printed circuit board between the electronic component mounting apparatus of this invention, and a post-process apparatus. It is the figure which showed one Example of this invention and the conventional operation | movement transition by using elapsed time as a horizontal axis.

An embodiment of the present invention will be described below with reference to the drawings. In addition, the following description is for describing one embodiment of the present invention, and does not limit the scope of the present invention. Accordingly, those skilled in the art can employ embodiments in which these elements or all of the elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.
In the description of each drawing, the same reference numerals are assigned to components having a common function, and duplication of description is avoided as much as possible.

  An embodiment of the electronic component mounting apparatus of the present invention will be described with reference to FIGS. FIG. 1 is a plan view of one embodiment of the electronic component mounting apparatus of the present invention, and FIG. 2 is a control block diagram of one embodiment of the electronic component mounting apparatus of the present invention. DESCRIPTION OF SYMBOLS 1 is an electronic component mounting apparatus, 2 is a mounting apparatus main body, 3 is a component supply unit, 4 is a supply conveyor part, 5 is a positioning part, 6 is a carry-out conveyor part, 7 is a mounting head, 8 is a beam, 9 is a Y-axis motor 10 is a screw shaft, 11 is a guide, 12 is an X-axis motor, 14 is a vertical axis motor, 15 is a θ-axis motor, 16 is a component recognition camera, 17 is a suction nozzle of the mounting head 7, 18 is a nozzle stocker, and 21 is A control unit that performs overall control of operations related to the electronic component mounting apparatus 1 based on a control program, 22 is a RAM (Random Access Memory) as a storage device, 23 is a ROM (Read Only Memory), 24 is an interface, and 25 is an X An axis motor drive circuit, 28 is a Y axis motor drive circuit, 32 is a θ axis motor drive circuit, and 30 is a vertical axis motor drive circuit. The control unit 21 is, for example, a CPU (Central Processing Unit). The ROM 23 stores a control program that performs overall control of operations related to the electronic component mounting apparatus 1.

In FIG. 1, a component supply unit 3 for supplying various electronic components one by one to a component suction / extraction position on a component supply table (not shown) provided in a mounting device body 2 of an electronic component mounting device 1 of the present invention. A plurality are arranged side by side. And between the unit 3 group which opposes, the supply conveyor part 4, the positioning part 5, and the carry-out conveyor part 6 are provided.
The supply conveyor unit 4 supplies the printed circuit board P received from the upstream pre-process device or the substrate supply device to the positioning unit 5. The supplied printed circuit board P is positioned by the positioning mechanism in the positioning unit 5, and after a desired electronic component is mounted, it is conveyed to the carry-out conveyor unit 6. In addition, in the electronic component mounting apparatus 1 in the present specification, the conveyor unit excluding the supply conveyor unit 4 and the carry-out conveyor unit 6 is referred to as a mounting conveyor unit 19.

The beam 8 is long in the X direction, and the Y-axis motor 9 is driven to rotate the screw shaft 10, so that the upper part of the printed circuit board P and the component supply unit 3 above the component suction and extraction position is individually moved along the pair of left and right guides 11 Move to.
The beam 8 is provided with a mounting head 7 that moves along a guide (not shown) by an X-axis motor 12 in the longitudinal direction, that is, in the X direction. Each mounting head 7 is equipped with a vertical axis motor 14 for moving the suction nozzle 17 up and down and a θ-axis motor 15 for rotating around the vertical axis. Therefore, the suction nozzle 17 of the mounting head 7 can move in the X direction and the Y direction, can rotate around a vertical line, and can move up and down.

  The component recognition camera 16 is for component position recognition. The component recognition camera 16 is an electronic device for recognizing the position of the electronic component with respect to the suction nozzle 17 in the XY direction and the rotation angle (θ direction). Although the components are imaged, it is possible to simultaneously image twelve electronic components sucked and held by twelve suction nozzles 17 attached to the mounting head 7 in a replaceable manner. The nozzle stocker 18 houses various suction nozzles 17. The maximum number of nozzle stockers 18 that can be arranged is 24, for example.

In FIG. 2, for convenience, only one X-axis motor 12, Y-axis motor 9, θ-axis motor 15, vertical axis motor 14 and the like are illustrated and described below.
In the RAM 22, for each mounting order (for each step number), information on the X direction, Y direction, and angle (θ direction) in the printed board P, and the printed board P such as the arrangement number information of each component supply unit 3 are stored. Installation data (production model data) for each model is stored.
The RAM 22 stores information on the type (component ID) of each electronic component and the type (nozzle ID) of the suction nozzle 17 corresponding to the arrangement number (lane number) of each component supply unit 3, that is, component arrangement information. Yes. Further, component library data relating to the characteristics of the electronic component is stored for each type of electronic component (component ID).
The RAM 22 stores a production sequence setting list created by referring to necessary data from the above-described mounting data, component arrangement data, and component library data (see FIG. 3 described later).

The overall control unit (CPU) 21 performs overall control of operations related to the component mounting operation of the electronic component mounting apparatus 1 according to the program stored in the ROM 23 based on the data stored in the RAM 22. That is, the CPU 21 controls the driving of the X-axis motor 12 via the driving circuit 25, controls the driving of the Y-axis motor 9 via the driving circuit 28, and drives the θ-axis motor 15 via the driving circuit 32. In addition, the driving of the vertical axis motor 14 is controlled via the drive circuit 30.
The production model data (mounting data) stored in the RAM 22 is data of the printed circuit board of the production model currently being produced, and the CPU 21 switches the production model every time the production model is switched according to the production order setting list. The stored data is changed (switched) to the stored data of the corresponding production model stored in the RAM 22 and stored again, and electronic components are mounted on the printed circuit board based on the stored data stored again.

The recognition processing device 13 is connected to the CPU 21 via the interface 24, performs recognition processing of an image captured by the component recognition camera 16, and sends the processing result to the CPU 21. That is, the CPU 21 outputs a control instruction to the recognition processing device 13 so as to perform recognition processing (such as calculation of a positional deviation amount) on an image captured by the component recognition camera 16 and receives a recognition processing result from the recognition processing device 13. .
That is, when the amount of positional deviation is grasped by the recognition processing of the recognition processing device 13, the result is sent to the CPU 21. The CPU 21 moves the beam 8 in the Y direction by driving the Y-axis motor 9, moves the mounting head 7 in the X direction by driving the X-axis motor 12, and rotates the suction nozzle 17 by θ by the θ-axis motor 15. Then, the rotation angle position around the X and Y directions and the vertical axis is corrected.

  The monitor 36 is provided with a touch panel switch (touch panel 35) as various input means as a display device, and an operator can perform various settings by operating the switch 35 of the touch panel. In addition, a keyboard may be used as input means for data setting.

Next, switching of production models will be described with reference to FIG. FIG. 3 is a diagram for explaining a production order setting list in one embodiment of the electronic component mounting apparatus of the present invention. Reference numeral 300 denotes a production order setting list. In the production order setting list 300, for example, the name of the production model to be produced on the day (name of the model to be produced), the production order, and the number of production boards are registered in the RAM 22 in advance. Further, in the production order setting list 300, data necessary for the setup operation is registered among data necessary for the setup of the next model of the electronic component mounting apparatus.
The switch of the production model is set when the final board is carried out to the subsequent process after the number of production boards reaches the number of production boards set in the production order setting list as shown in FIG. 3 during the production operation. Prior to the production of the printed circuit board P of the production model to be produced next time set in the list, a setup change operation is first performed as an operation for switching the production model, and then a model data switching operation is performed.

As shown in FIG. 3, the production model name and the number of production boards are registered in the production order setting list 300 in the order of production. In this list, for example, on the morning of the previous day or the day, the production for the day is registered in advance in the data storage unit of the RAM 22.
The setup change operation is executed with reference to the production order setting list 300. In the setup change operation, the suction nozzle 17 used for the next production model is automatically changed. The suction nozzle 17 used in each production model registered in the production order setting list is installed in the mounting head 7 or the nozzle stocker 18 in advance. The nozzle stocker 18 is a place for storing the suction nozzle 17 for replacement.
When the setup change operation such as nozzle replacement is completed, a model data switching (data transfer) operation is then performed.
The mounting data of each model registered in the production order setting list 300 is stored in advance in the data storage unit of the ROM 23.
After switching to the next model, production of printed circuit boards for the next production model will start.

A comparison between the operation of the present invention and the conventional operation will be described with reference to FIGS. FIG. 4 is a flowchart for explaining an embodiment of the processing operation of the present invention. 4A is a flowchart for explaining the processing operation of the conventional electronic component mounting apparatus 1 ′, and FIG. 4B shows the processing operation of the electronic component mounting apparatus 1 according to the embodiment of the present invention. It is a flowchart for doing. FIG. 5 is a view for explaining an embodiment of the carry-out operation and carry-in operation of the printed circuit board between the electronic component mounting apparatus and the post-process apparatus of the present invention. 1 'is a conventional electronic component mounting device, 1 is an electronic component mounting device of the present invention, 4 is an electronic component mounting device 1' or a supply conveyor portion of the electronic component mounting device 1, and 6 is an electronic component mounting device 1 'or an electronic component. The carry-out conveyor section of the mounting apparatus 1, 19 is the electronic component mounting apparatus 1 ′ or the mounting conveyor section of the electronic component mounting apparatus 1, 51 is a post-process apparatus, 54 is a supply conveyor section of the post-process apparatus 51, and 56 is a post-process apparatus 51. The unloading conveyor unit 59 is a mounting conveyor unit for the post-processing apparatus 51.
4 is executed by the control unit 21 by controlling each part of the electronic component mounting apparatus 1 ′ or the electronic component mounting apparatus 1 via the RAM 22 and the ROM 23 and the interface 24. It is assumed that the electronic component mounting apparatus 1 ′ or the electronic component mounting apparatus 1 performs production according to the production order shown in FIG.
In addition, communication between the electronic component mounting apparatus 1 ′ or the electronic component mounting apparatus 1, the pre-process apparatus (including the substrate supply apparatus), and the post-process apparatus is, for example, transmission via a wireless LAN (Local Area Network), a wired LAN, or the like. Use a cable, etc. (not shown).

In FIG. 4A, the model switching operation and the setup change operation (manual) to the production sequence 1 (production sequence setting list first: PRGM_A model) shown in FIG. Start. That is, it is the same as when the processing of steps S47 and S48 described later is completed.
First, in step S41, one printed circuit board P of the production order 1 model (PRGM_A) is carried from the supply conveyor unit 4 to the mounting conveyor unit 19.
At this time, when electronic component mounting is started for the first time, the printed board P is not carried out from the carry-out conveyor unit 6 to the post-process device 51 because the carry-out conveyor unit 6 and the loaded conveyor unit 19 do not have the printed board P. Further, there is no conveyance of the printed circuit board P from the supply conveyor unit 4 to the carry-out conveyor unit 6. Similarly, when the mounting of the first electronic component is finished, the printed circuit board P is not carried out from the carry-out conveyor section 6 to the post-processing device 51 because the printed-out board section P is not present in the carry-out conveyor section 6.

Next, in step S42, board production (mounting of electronic components) is performed for the printed board P.
In step S <b> 43, the printed circuit board P on which electronic components are mounted is conveyed from the mounting conveyor unit 19 to the carry-out conveyor unit 6. Further, when there is no printed board P in the carry-out conveyor unit 6, the printed board P is not carried out from the carry-out conveyor unit 6 to the post-process device 51. However, when the printed board P is present in the carry-out conveyor unit 6, the printed board P is carried out from the carry-out conveyor unit 6 to the post-process device 51. At this time, when the printed circuit board P is unloaded from the unloading conveyor unit 6 to the post-process apparatus 51, it is unloaded after the post-process apparatus 51 makes a board request to the electronic component mounting apparatus 1 ′. Accordingly, if there is no substrate request from the post-processing device 51, the printed board P is carried into the supply conveyor section 4, the printed board P is transported from the supply conveyor section 4 to the mounting conveyor section 19, and the mounting conveyor section 19 The conveyance of the printed circuit board P to the carry-out conveyor unit 6 is not executed.

In step S44, it is determined whether or not the number of printed circuit boards P of the production order 1 model currently being produced that has been conveyed to the carry-out conveyor unit 6 has reached the number set in the production order setting list (FIG. 3). To do. That is, if the printed circuit board P conveyed from the loading conveyor unit 19 to the carry-out conveyor unit 6 has not reached the number set in the production order setting list, the process proceeds to step S41. The process proceeds to S45.
In step S <b> 45, it is confirmed that the printed circuit board P of the model in the production order 1 is carried out to the post-process device 51 and there is no printed board P in the carry-out conveyor unit 6. If the printed circuit board P is not in the carry-out conveyor unit 6, the process proceeds to step S46. However, if the printed circuit board still remains in the post-process device 51 that is the conveyance destination and the printed circuit board P cannot be carried out, step S45 is repeated at a predetermined cycle. That is, it is necessary to wait until the printed circuit board P can be carried out (unloading waiting operation).
Next, in step S46, the printed circuit board P is unloaded to the post-process device 51 (board unloading operation), and it is determined with reference to the production order setting list whether the next model is produced. If there is a next production model, the process proceeds to step S47. If there is no next production model, the operation of the electronic component mounting apparatus is terminated.
In step S47, an automatic model switching process is executed to produce a printed circuit board of the next model (for example, model of production order 2) based on the production order setting list shown in FIG.
Next, in step S48, automatic setup change such as nozzle exchange is performed, and the process returns to step S41 to start production of the next production model. Thereafter, the processes in steps S41 to S48 are repeated according to the production order setting list.

According to the above-described conventional electronic component mounting operation, in step S43, the substrate P is unloaded after receiving the substrate request from the post-process device 51. This means that even during the production of the same model, the substrate request from the post-process apparatus 51 is waited (FIG. 5A). This also applies to the case where the last printed board P of the model that was produced is in the carry-out conveyor unit 6 in step S45, and is in a state of waiting for a board request from the post-process device 51 (FIG. 5A )).
As shown in FIG. 5A, when the board request is waiting, the previous printed circuit board P still remains on the supply conveyor unit 54 of the post-process apparatus 51. The board request is not transmitted to the apparatus 1.
As shown in FIG. 5B, the automatic model switching operation starts after the printed board P of the model currently being produced (for example, the printed board P of the PRGM_A model) disappears from the carry-out conveyor unit 6. Then, after the automatic model switching operation is completed, an automatic setup change operation (nozzle replacement or the like) is executed based on the next model data (PRGM_B model).
After the automatic setup change operation, production of the new model (PRGM_B model) will start.
That is, if the printed circuit board P of the production model 1 (PRGM_A) in the production order 1 is not carried out from the carry-out conveyor unit 6 to the post-process device 51, the next production model (PRGM_B model) scheduled to be produced in the production order list is set. The production model data switching operation (that is, production model switching) cannot be performed.
Therefore, in the above-described conventional technology, when the printed circuit board P of the production model currently being produced remains in the carry-out conveyor unit 6, the production model cannot be switched to the printed circuit board P of the production model to be produced next. .

In the electronic component mounting apparatus 1 of the present invention, the production model switching operation to the next production model in the above-described prior art is performed as shown in the flowchart of FIG. The embodiment of FIG. 4B differs from the conventional flowchart of FIG. 4A in that the process of step S48 is moved between step S44 and step S45 and is set as step S48 ′.
In FIG. 4B, the model switching to the production order 1 (production order setting list first: PRGM_A model) shown in FIG. 3 and the setup operation (manual) are performed, and the production operation (mounting of electronic parts) is started. . That is, it is the same as when the processing of step S47 described later is completed.
First, in step S41, one printed circuit board P of the production order 1 model (PRGM_A) is carried from the supply conveyor unit 4 to the mounting conveyor unit 19.
At this time, when electronic component mounting is started for the first time, the printed board P is not carried out from the carry-out conveyor unit 6 to the post-processing device 51 because the carry-out conveyor unit 6 and the loaded conveyor unit 19 do not have the printed board P. Further, there is no conveyance of the printed circuit board P from the supply conveyor unit 4 to the carry-out conveyor unit 6. Similarly, when the mounting of the first electronic component is finished, the printed circuit board P is not carried out from the carry-out conveyor section 6 to the post-processing device 51 because the printed-out board section P is not present in the carry-out conveyor section 6.

Next, in step S42, board production (mounting of electronic components) is performed for the printed board P.
In step S <b> 43, the conveyance of the printed circuit board P on which electronic components are mounted from the mounting conveyor unit 19 to the carry-out conveyor unit 6 is started. In this case, when there is no previous printed circuit board in the carry-out conveyor unit 6, the conveyance is immediately started. When there is a previous printed circuit board on the carry-out conveyor unit 6, the process waits until the previous printed circuit board is discharged, and the conveyance is started after the previous printed circuit board is discharged to the post-process device 51.
Further, after the mounting of the components on the printed circuit board is completed in step S42 and the board conveyance in step S43 is started, the determination processing in step S44 and step 46 ′ is performed in parallel, and the final board is mounted next. When there is a model to be used, the changeover of nozzles and the like in step S48 ′ is started even if the conveyance in step S43 is not completed.

In step S44, whether or not the number of printed circuit boards P of the production order 1 model currently being produced that has been conveyed to the carry-out conveyor unit 6 has reached the number set in the production order setting list (FIG. 3). Determine. That is, if the printed circuit board P transported from the supply conveyor unit 19 to the carry-out conveyor unit 6 has not reached the number set in the production order setting list, the process proceeds to step S41. The process proceeds to S46 ′.
Next, in step S46 ′, the printed circuit board P is unloaded to the post-process apparatus 51 (substrate unloading operation), and it is determined whether or not the next model is produced with reference to the production order setting list. If there is a next production model, the process proceeds to step S48 ′. If there is no next production model, the operation of the electronic component mounting apparatus is terminated.
Similarly to FIG. 5A, in FIG. 5C, when the printed board P is carried out from the carry-out conveyor unit 6 to the post-process apparatus 51 side, the board is transferred from the post-process apparatus 51 to the electronic component mounting apparatus 1. Remove after request. Accordingly, if there is no substrate request from the post-processing device 51, the printed board P is carried into the supply conveyor section 4, the printed board P is transported from the supply conveyor section 4 to the mounting conveyor section 19, and the mounting conveyor section 19 The printed board P cannot be conveyed to the carry-out conveyor unit 6.

However, in the electronic component mounting apparatus 1 of the present invention, after the processing of steps S44 and S46 ', as shown in FIG. 5C, the production order setting list (FIG. 3) is set in the carry-out conveyor unit 6. Even if there is the last printed circuit board P that has reached the predetermined number, the processing operation of step S48 ′ is executed to speed up the start of production of the next model.
That is, in step S48 ′, the next production model is confirmed from the production order setting list, and a setup change operation such as nozzle replacement is executed with reference to the model data of the next production model.
Thereafter, the process proceeds to step S45 ′, and in step S45 ′, the printed board P of the model in the production order 1 is carried out to the post-process device 51, and it is confirmed that there is no printed board P in the carry-out conveyor unit 6. Next, in step S47, an automatic model switching process is executed in order to produce a printed circuit board of the next model (for example, model of production order 2) based on the production order setting list shown in FIG. 3, and the process proceeds to step S41. Return. And it returns to S41 and the board | substrate of the next production model is conveyed and production is started. Thereafter, the processes in steps S41 to S44, S46 ′, S48 ′, S45 ′, and S47 are repeated according to the production order setting list.
The step change operation such as the nozzle change in step S48 ′ is necessary for, for example, the type and number of nozzles necessary for production in the model data of the current production model and the production in the model data of the next production model. The type and number of nozzles are compared to determine the difference in the number of different types (nozzle replacement data), and the nozzle is replaced.

According to the processing operation of the present invention, as shown in the flowchart of FIG. 4B, the final board of the model is transported from the mounting conveyor unit 4 to the unloading conveyor unit 6, and simultaneously with unloading to the unloading conveyor unit 6. That is, while waiting for the substrate request from the post-process device 51, the setup change operation for producing the next model is performed by referring to the data related to the setup change of the next model data set in the production order setting list. Execute.
Moreover, the printed circuit board P in the carry-out conveyor unit 6 is carried out when the substrate is requested from the post-process device 51. When the carry-out of the printed board P in the carry-out conveyor unit 6 is completed, a model data switching operation to the next model is executed.
After the model data switching operation is completed, production of the next model can be executed.
According to the above-described embodiment, the setup change operation is not performed after the model data switching operation, and is executed while waiting for the substrate request from the post-process device 51, so that the production of the next model can be started earlier than the conventional operation. it can.
5 (a) to 5 (c), the supply conveyor unit 4, the mounting conveyor unit 19, and the carry-out conveyor unit 6 have sensors for detecting whether or not a printed circuit board exists in each area. Provided (not shown), and the detection information of the sensor is transmitted to the overall control unit, the overall control unit executes the production model switching according to the present invention. Note that the sensor may be a barcode reader that reads a barcode attached to a printed circuit board and transmits the read printed circuit board information to the overall control unit.

  The conventional operation and the operation of the present invention are compared in the time chart at the time of the setup operation shown in FIG. FIG. 6 is a diagram showing an operation transition according to an embodiment of the present invention and a conventional operation with the elapsed time as a horizontal axis. FIG. 6A is a diagram for explaining the operation time until the production model is switched between the board A of the model A and the board P of the model B of the conventional electronic component mounting apparatus 1 ′. FIG. 6B is a diagram for explaining an operation time until the production model is switched between the model A board P and the model B board P of the electronic component mounting apparatus 1 of the present invention. The horizontal axis represents time, and the times in FIGS. 6A and 6B are synchronized in the vertical direction. Reference numeral 61 denotes a model A board production operation, 62 a board unloading / post-process waiting operation, 63 a model data switching operation, 64 and 64 ', a stage change operation such as nozzle replacement, and 69 a model B board production operation. Here, the substrate unloading / post-process waiting operation 62 is a waiting time until the last printed board P of the model A is unloaded from the unloading conveyor unit 6 to the post-process apparatus 51.

  In the conventional operation of the electronic component mounting apparatus 1 ′ of FIG. 6A, production (electronic component mounting) from the first to fifth sheets of the printed board P of model A is started from time t <b> 1. Then, at time t2, the production (electronic component mounting) of the last (fifth) printed circuit board P of model A ends. Thereafter, the model data switching operation 63 cannot be performed until time t3 when the last printed board P is carried out to the post-process apparatus 51, and the setup change operation 64 cannot be performed until time t4 when the model data switching operation 63 ends. That is, from time t5 when the model data switching operation 63 and the setup change operation 64 are completed, production (electronic component mounting) of the first to tenth printed boards P of the model B can be started.

On the other hand, in the operation of the electronic component mounting apparatus 1 of the present invention, the time t1 to the time t2 are the same as in FIG. 6A, and from the time t1 to the first to fifth sheets of the printed board P of the model A. Production (electronic component mounting) is started, and production (electronic component mounting) of the last (fifth) printed circuit board P of model A ends at time t2. At this time, during the 62 hours of substrate unloading / post-process waiting operation, the setup change operation 64 ′ as described with reference to FIGS. 4 and 5 is executed until time t6.
In this way, when the last printed board P of the model A is carried out onto the carry-out conveyor unit 6 (time t2), the operation of the setup change operation 64 ′ is executed. As a result, it is possible to overlap the time for waiting for unloading to the post-process device 51 and the time for the setup change operation.

Then, at the time t3 when the setup change operation 64 ′ or the substrate unloading / post-process waiting operation 62 is completed, the model data switching operation 63 as described with reference to FIGS. 4 and 5 is executed.
As a result, at time t4 when the model data switching operation 63 ends, production (electronic component mounting) of the first to 100th printed circuit boards P of the next model B can be started.
In other words, when waiting for the post-process occurs, the apparent setup change operation time becomes zero, the production model switching is completed quickly, and the production of the next production model can be started quickly.

  DESCRIPTION OF SYMBOLS 1: Electronic component mounting apparatus, 2: Mounting apparatus main body, 3: Component supply unit, 4: Supply conveyor part, 5: Positioning part, 6: Unloading conveyor part, 7: Mounting head, 8: Beam, 9: Y-axis motor 10: Screw shaft, 11: Guide, 12: X-axis motor, 14: Vertical axis motor, 15: θ-axis motor, 16: Component recognition camera, 17: Suction nozzle, 18: Nozzle stocker, 19: Loading conveyor 21: Controller, 22: RAM, 23: ROM, 24: Interface, 25: X-axis motor drive circuit, 28: Y-axis motor drive circuit, 30: Vertical axis motor drive circuit, 32: θ-axis motor drive circuit, 35 : Touch panel, 36: Monitor, 51: Post-process device, 54: Feeding conveyor unit, 56: Unloading conveyor unit, 59: Loading conveyor unit, 61 Model A board production operation, 62: Board unloading / post-process waiting operation, 63: Model data switching operation, 64, 64 ′: Setup change operation, 69: Model B board production operation, 300: Production order setting list, P :Printed board.

Claims (6)

A mounting conveyor unit that mounts electronic components on a printed circuit board; a supply conveyor unit that supplies the printed circuit board to the mounting conveyor unit; and a carry-out conveyor unit that transports the printed circuit board mounted with the electronic components from the mounting conveyor unit. A changeover means for changing the type of a printed circuit board; a model data switching means for changing the model of the printed circuit board; a ROM for storing a control program for the electronic component mounting apparatus; and the electronic component mounting apparatus. RAM for registering a production order setting list for registering the model name of the printed circuit board to be mounted, the mounting order and the number of boards to be mounted, the setup change means, the model data switching means, the mounting conveyor section, the supply conveyor section, The carry-out conveyor unit and the RAM are controlled by a control program registered in the ROM. A the electronic component mounting apparatus that includes a controller for overall control on the basis of the arm,
Based on the production order setting list, the control unit starts transporting the mounted printed circuit board when the last printed circuit board of the model currently being produced finishes mounting the electronic component, and then An electronic component mounting apparatus, wherein when there is a model to be produced, a setup change operation is performed by controlling the automatic setup change means.   2. The electronic component mounting apparatus according to claim 1, wherein the control unit performs the setup change operation by controlling the automatic setup change unit even if the transport of the mounted printed circuit board is not completed. 3. Electronic component mounting device.   3. The electronic component mounting apparatus according to claim 1, wherein the control unit performs a post-process of the last printed circuit board of the currently produced model that has reached the carry-out conveyor unit from the carry-out conveyor unit. An electronic component mounting apparatus that controls model data switching means and performs model data switching after being carried out to the apparatus.   4. The electronic component mounting apparatus according to claim 1, wherein the ROM stores a plurality of production model data of the printed circuit board, and the RAM stores the printed circuit board currently being produced from the ROM. 5. The electronic component mounting device is characterized in that the production model data is re-stored every time the production model is switched.   6. The electronic component mounting apparatus according to claim 1, wherein the production order setting list registered in the RAM includes a production model name to be produced (name of the produced model), a production order, and An electronic component mounting apparatus characterized in that it is the number of production boards.   6. The electronic component mounting apparatus according to claim 5, wherein the production order setting list registered in the RAM further includes data necessary for a setup operation among data necessary for the electronic component placement apparatus to set up a next model. An electronic component mounting apparatus characterized by being registered.

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