JPH0794896A - Electronic part mounting system - Google Patents

Abstract

PURPOSE:To effectively utilize the information on the remaining number of parts collected from an automatic electronic part mounting unit or the information that there are no parts. CONSTITUTION:When it is informed that there are no parts by an automatic part mounting unit 8, the information is collected by a personal computer 36, and a warning or information that there are no parts is displayed on the CRT 37 installed in the material storage consecutively so that the worker in the material storage takes out the tape reels for the parts from a tape reel shelf 14 in one lot and prepare them on the counter table 15. The person in charge at the parts mounting line 1 mounts the tape reel on the unit 8 that runs out of the parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component automatic mounting apparatus for mounting a chip component supplied from a component supply section on a printed circuit board, and a component for the component supply section of the electronic component automatic mounting apparatus. The present invention relates to an electronic component mounting system having a material storage area.

[0002]

2. Description of the Related Art An electronic component mounting system of this kind is disclosed in Japanese Unexamined Patent Publication
It is disclosed in Japanese Laid-Open Patent Publication No. 130897, and information on the remaining number of components for each mounting device of the system is downloaded to and displayed on the host computer.

[0003]

However, the conventional technique has a drawback in that this data cannot be effectively used only by displaying the information of the remaining number of components that has been sucked up by the host computer. Therefore, it is an object of the present invention to effectively use information on the remaining number of components or the shortage of components sucked up from an automatic electronic component mounting apparatus.

[0004]

Therefore, the present invention provides an electronic component automatic mounting apparatus for mounting a chip component supplied from a component supply section on a printed circuit board, and a component supply section of the electronic component automatic mounting apparatus. In an electronic component mounting system having a material storage area for storing components, storage means for storing information on the number of remaining components or out-of-components of the electronic component automatic mounting device, and the number of remaining components or parts stored in the storage means. The information is displayed when the product is out of stock, and is configured by a parts-out display device provided near the material storage area.

[0005]

The display device displays to the operator the information on the number of remaining parts or the number of parts stored in the storage means in the vicinity of the material storage area for storing the parts for the part supply section of the electronic parts automatic mounting apparatus.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1, 1 is a chip-shaped electronic component 2 (see FIG.
(Refer to FIG. 3) is mounted on the printed circuit board 3 (see FIGS. 3 and 4) to assemble, and 5 is a loader, which is located at the beginning of the line 1 and prints the printed circuit board 3 by screen printing of a downstream device. Supply to machine 6. The screen printer 6 prints cream solder (not shown) on the printed circuit board 3 via a screen plate (not shown), and the substrate 3 discharged from the screen printer 6 is conveyed to a dispenser 7 of a downstream device by a conveyor (not shown). It

The dispenser 7 applies an adhesive for temporarily fixing the chip component 2, and the printed circuit board after the work is conveyed to an electronic component automatic mounting device 8 of a downstream device. The automatic mounting device 8 mounts the chip component 2 at a predetermined position where the cream solder is printed, and the printed circuit board 3 after component mounting is sent to the reflow furnace 9 on the downstream side.
The solder is heated in the furnace 9 to solder the chip component 2 to the printed board 3, and the printed board 3 is housed in the board housing device 10 located at the end.

In this embodiment, a plurality of such lines 1 are installed in the factory, and each of them has a line No. 1 as shown in FIG. Numbers are attached starting from 1. In each line, there may be only one electronic component automatic mounting device 8, but a so-called high-speed mounting device 8 that mounts a relatively small component 2 and a relatively large-sized component 2 that mounts various shapes. There are cases where so-called multifunctional mounting devices 8 are arranged side by side, and there are cases where a plurality of high speed type devices 8 are arranged.

Reference numeral 11 denotes a material storage area in which tape reels 13 loaded in a component supply device 23, which will be described later, arranged in the electronic component automatic mounting device 8 are stocked in line on a tape reel shelf 14 for each component type. A counter desk on which tape reels 13 of the types of parts to be replaced can be placed side by side is installed in front of the material storage 11. The counter desk 1
Next to 5 is a personal computer 36 (hereinafter referred to as a personal computer) and a CRT 37 connected to the personal computer 36.
Also, a printer 38 is installed.

The CRT 37 is a tape reel shelf 1 so that an operator in the material storage area 11 can see the screen.
It is installed at a position facing No. 4. The CRT 37 may be adjacent to the shelf 14 instead of being adjacent to the counter desk 15 so that the tape reel 13 can be searched while looking at the screen, or at a position adjacent to both the counter desk 15 and the shelf 14. , You may leave one for each.
If the material storage area 11 is surrounded by a wall, it is better to put it in it, or if it is not surrounded by a wall, when there is an operator near either the shelf 14 or the counter 15 as much as possible. It is better to put it in a visible position.

As shown in FIG. 2, the personal computer 36 is connected to each electronic component automatic mounting device 8. This connection is RS2
It is made up of an interface connector (not shown) defined by 32C, and is connected to a CPU (not shown) via an input / output interface (not shown) of the mounting device 8. The personal computer 36 sucks up after-mentioned component out information or component remaining number information detected by each mounting device 8 and stored in the RAM 47 in the device 8, and an input / output interface (not shown) and a CPU (not shown) of the personal computer through the RS232C connection. RAM4 as a storage means via
5, the information thus collected is displayed on the CRT 37 as shown in FIG. 5, for example.

The personal computer 36 is provided with an operating section 40, and the operating section 40 is provided with an erase key 41, an execute key 42, a ten-key 43, and the like. Next, the electronic component automatic mounting device 8 will be described with reference to FIGS. 3 and 4. Reference numeral 16 is an X table which is moved in the X direction by the rotation of the X axis motor 17, and 18 is moved in the Y direction on the X table 16 by the rotation of the Y axis motor 19 and consequently is moved in the XY directions. It is an XY table, and the printed circuit board 3 on which the chip-shaped electronic component 2 is mounted is fixed and placed on a fixing means (not shown).

Reference numeral 22 denotes a supply table, and a large number of component supply devices 23 for supplying the chip components 2 are arranged. A tape reel 13 is loaded in the component supply device 23, and the chip components 2 are enclosed in the tape reel 13 at predetermined intervals. Reference numeral 34 is a photo sensor, which is a suction nozzle 29.
Of the electronic component automatic mounting device 8 so that the light from the projector can be applied to the upper surface of the tape (not shown) fed from the tape reel 13 of the component supply device 23 stopped at the take-out position of the component supply device 23 to receive the reflected light. It is attached to a position that does not move with respect to the supply table 22. A reflection plate (not shown) that reflects light is attached to the running position of the tape where the light emitted from the projector of the sensor 34 is irradiated, and the amount of light reflected by the reflection plate is received by the light receiver. Is larger than the amount of light reflected by the surface of the tape (diffuse reflection), the tape end is detected.

Reference numeral 24 is a supply base drive motor, and by rotating the ball screw 25, the supply base 22 is guided to the linear guide 27 via a nut 26 fitted to the ball screw 25 and fixed to the supply base 22. Is moved in the X direction. Reference numeral 28 denotes a rotary table that rotates intermittently. On the outer edge of the table 28, mounting heads 30 having six suction nozzles 29 are arranged at equal intervals according to the intermittent pitch.

The suction nozzle 29 is connected to the component 2 by the supply device 23.
The stop position of the mounting head 30 for picking up and picking up is the suction station, and the suction nozzle 29
Adsorbs the component 2. Reference numeral 31 denotes a component recognizing device for recognizing the displacement of the component 2 attracted by the suction nozzle 29 by recognizing the imaging screen of the lower surface of the component 2 with a camera in a predetermined visual field range and recognizing the imaged screen. The station at which the moving mounting head 30 stops on the device 31 is the recognition station.

The position where the mounting head 30 next to the recognition station stops is the angle correction station, and the angle amount for correcting the angular displacement of the chip component 2 due to the recognition result of the recognition device 31 is set to the θ data of the mounting data described later. The head rotation device 32 rotates the mounting head 30 in the θ direction by an angle amount in consideration of the angle amount shown. The next stop position after the angle correction station is the mounting station,
The component 2 to be sucked by the suction nozzle 29 of the station is mounted on the substrate 3.

The operation will be described below with the above configuration. First, each line 1 is provided with one operator who checks the operating state of the device and supplements the material shortage when the material shortage such as the shortage of the chip component 2 of the electronic component automatic mounting device 8 occurs. There will be described a case where an operator of a parts delivery clerk who prepares the tape reel 13 for replenishing the parts supply device 23 that is out of material is arranged in the material storage area 11.

When the automatic operation of each device is started, a predetermined work is performed on the printed circuit board 3 in each device, and the substrate 3 delivered from the dispenser 7 is supplied to the electronic component automatic mounting device 8. Then, the component supply device 8 to which the component 2 to be mounted is supplied in each mounting order of the component 2 moves to the take-out position of the suction nozzle 29 by the movement of the supply base 22, and the suction nozzle 29 moves from the device 8 to the chip component. Adsorb 2

Next, the rotation of the rotary table 28 conveys the component 2 to the recognition station, and the position and orientation are detected by the camera 31. Based on the detection result, the component 2 should be corrected by the next angle correction station. The head is rotated by the head rotating device 32 in consideration of the angle amount so as to be in the angular position to be mounted. Next, in the mounting station, the amount to be corrected is corrected based on the recognition result of the camera 31, and X is corrected.
The Y table 18 moves to mount the chip component 2 at the position where the printed circuit board should be mounted.

In this way, various component supply devices 2 are successively installed.
When the chip components 2 are sucked from the device 3, the chip components 2 in the tape reel 13 of each device 23 gradually decrease, and the line number NO. No. 3 device No. When the end of the tape (not shown) of the component supply device 23 of the reel number 25 of the electronic component automatic mounting device 8 of 4 passes the position of the photo sensor 34 and the light reflected by the reflection plate (not shown) is received by the sensor 34, the tape is received. When the end is detected, the CPU (not shown) of the device 8 mounts the number of chip components 2 supplied by the component supply device 23 used on one printed circuit board and the component mounting on the one printed circuit board required so far. Since the number of parts 2 remaining in the tape at the time when the tape end is detected is determined from the execution time, the remaining time until the parts run out is calculated and the remaining time is notified together with the remaining time. The information is stored in its own RAM 47 and sent to the personal computer 36, and the personal computer 36 absorbs this information. Then, the personal computer 36 sends this information to its own RAM 4
5, and is displayed on the CRT 37. Further, this piece-of-parts information is also displayed on a CRT (not shown) of the own device 8 so that the person in charge of the line can confirm the parts-out.

In this way, the advance notice of the out-of-parts of each device 8 of each line 1 is detected, each time the advance information is sent from the respective device 8 to the personal computer 36 through the RS232C interface connector, and the CRT 37 is notified of that. The out-of-component information is displayed in order, and the out-of-component information is displayed as shown in FIG. 5, for example. At this time, the operator of the material storage area 11 inserts the tape reel 13 that stores the advance notice of the parts out or the parts 2 that are out of parts displayed on the CRT 37 into the C reel.
The RT 37 is prepared from the tape reel shelf 14 while checking each time, and is prepared and placed on the counter desk 15 for each line 1. CR after preparing one tape reel 13
Since T37 can be confirmed immediately, the time for preparing the tape reel 13 can be shortened. In this case, it may be prepared for each device 8, or a box or section may be prepared for each line 1 or each device 8 so that the operator in charge of each line can immediately understand it. You may Alternatively, the printer 38 may print on a sheet and prepare while looking at it. However, although only the information up to the time of printing is printed on the printer 38, the information is displayed immediately on the CRT 37 when the occurrence of a component shortage is detected.

If the position where the tape reel 13 is placed on the tape reel shelf 14 is determined for each component of the tape reel and the number is displayed in order on the shelf,
The display position number may be displayed for each component type on the screen of the CRT 37. The tape reel 13 that has been prepared is erased from the screen of the CRT 37,
This operation is specified by first pressing the delete key 41 of the operation unit 40, then pressing the ten keys 43 and inputting the number at the left end of the screen of the CRT 37 in FIG. Information about out of parts is deleted. At this time, after pressing the ten key 43, the column of the number may be color-coded or displayed by a cursor so that the column can be seen. The deleted number may be left as it is, or the number after that may be incremented. The deletion of the next number may be performed in the same manner, or a plurality of numbers may be collectively input when the ten keys are input.

When the counters 15 are prepared on the counter desks 15 in this way, the person in charge of each line 1 can use the counters 15 based on the information about the out-of-parts confirmed by the device 8 of his or her line 1.
I will pick up the tape reel 13. Even if it is not prepared by this time, it is possible to prepare the tape reel 13 to be replaced immediately while checking the CRT 37 on the spot.

Next, the person in charge of line 1 is his or her own line 1
The tape reel 13 can be carried to the device 8 and loaded into the component supply device 23, which has been foretold or has run out of components, to replenish the components 2, and the time when the device 8 is away is short. It's done. In particular, when one of the component supply devices 8 has already run out of components and the device 8 is in a stopped state of operation, the distance between them can be short, so the down time is short. The production loss can be minimized.

Next, if the number of workers is small and one person cannot be placed in each line 1 and one person in charge is in charge of a plurality of lines 1, the parts run out as described above. When one of the devices 8 runs out of material, it means that when you go to the material storage area and another device 8 that you are in charge of runs out of parts, that new device will be added on the spot. The tape reel 13 of the device 8 that has run out of parts can be brought back and the loss can be suppressed.

When the number of such workers is small, the workers are always in the material storage area, and when the display of the CRT 37 is confirmed and the remaining time becomes short or the device 8 which is out of material occurs. If the tape reel 13 for the device 8 is taken out from the tape reel shelf 14,
You should go to and do the replacement work. If the parts are actually out after the parts are out of order, "0:00" may be displayed in the remaining time column or "parts out" may be displayed. Actually, it may be better to display "parts out" because it may cause an error that it may end earlier than the announced remaining time or may not end yet. It is conceivable that the determination of the component shortage is made when the suction nozzle 29 sucks the components and tries to take them out, for example, three times and cannot take them out. Depending on the tape, if the photo sensor 34 cannot detect the end, or if the component 2 cannot be taken out even if the component 2 is still present due to some trouble, there may be a case where the component outage is displayed without giving a notice of the component outage.

In this embodiment, the RS232C interface connector is used to connect the electronic component automatic mounting device 8 and the personal computer 36, but they may be connected via a LAN network. Further, in the present embodiment, the part-out information is displayed for a plurality of electronic component automatic mounting devices, but even if only one device is installed, the part-out information and the like are displayed in the material storage area C.
It is effective if it is displayed at RT.

Further, in the present embodiment, both the RAM 47 of the device 8 and the RAM 45 of the personal computer 36 store the advance notice of the parts out or the information about the parts out. However, the CRT 37 is always stored in the RAM of the device 8 and the CRT 37 is always in the device 8. The contents of the RAM may be displayed, or the contents of the RAMK may be displayed by being stored in the RAM of the personal computer 36 instead of being stored in the RAM of the device unit 8.

Further, in the present embodiment, when only the electronic component automatic mounting apparatus 8 is out of parts, the CRT in the material storage area displays the out-of-part parts, but the dispenser 7 also runs out of adhesive. In this case, the number of the device of which line may be displayed on the CRT in the material storage area. In addition, the advance notice of out-of-parts may be such that a subtraction counter is provided for each of the parts supply devices 23 and the number of parts in a full state is put in the counter as an initial value and subtracted every time a part is taken out.

[0030]

As described above, according to the present invention, the operator can collectively know the information on the number of remaining parts or the number of parts of the automatic electronic component mounting apparatus in the electronic component mounting system in the vicinity of the material storage area. Therefore, the time for preparing replacement parts for the mounting device can be shortened, and the parts replenishment work can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a plan view showing an electronic component mounting line and a material storage area of the present invention.

FIG. 2 is a diagram showing a state in which a plurality of electronic component automatic mounting devices are connected to a personal computer.

FIG. 3 is a side view showing an electronic component automatic mounting device.

FIG. 4 is a plan view showing an electronic component automatic mounting device.

FIG. 5 is a diagram showing a screen of a CRT.

[Explanation of symbols]

 1 Electronic Component Mounting Line 2 Chip-shaped Electronic Component (Chip Component) 3 Printed Circuit Board 8 Electronic Component Automatic Mounting Device 11 Material Storage Area 22 Supply Stand (Component Supply Section) 23 Component Supply Device (Component Supply Section) 36 Personal Computer 37 CRT (Part) Out of stock display device)

Claims (1)

[Claims] 1. An electronic component automatic mounting apparatus for mounting a chip component supplied from a component supply section on a printed circuit board, and a material storage area for storing a component for the component supply section of the electronic component automatic mounting apparatus. In the electronic component mounting system,
Storage means for storing information on the number of remaining parts or out-of-parts of the automatic electronic component mounting device, and information for displaying the number of remaining parts or out-of-parts stored in the storage means and provided near the material storage area Electronic component mounting system consisting of a displayed component outage display device.