JP2000209000A - Electronic component mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To notify workers of the detailed information related to the parts supplying unit. SOLUTION: When a remaining number of parts (5) of a tape feeder is reduced to a small number of parts and is then determined with CPU 25, a corresponding LED lamp 34 lights in the yellow color to previously notify the shortage of parts and moreover parts (5) are supplied. When an attracting mistake detecting apparatus detects shortage of parts (5), the LED lamp 34 lights up in turn in the red color to notify the shortage of parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for taking out electronic components from a plurality of component supply units mounted at predetermined mounting positions on a supply table by using a component extraction tool and mounting the components on a printed circuit board. The present invention relates to an electronic component mounting apparatus provided with display means for turning off or on the light in accordance with the state of (1).

[0002]

2. Description of the Related Art As this kind of electronic component automatic mounting apparatus, one disclosed in Japanese Patent Application Laid-Open No. 2-172632 is known. According to this conventional technique, when a component supply unit, which is a component supply unit, has run out of components, a corresponding lamp, which is a display unit, is turned on to notify the operator that any component supply device needs to be replaced. The operator is made aware of what must be done.

[0003]

However, the conventional technique cannot cope with a case where there are a plurality of abnormal states of the component supply unit.

Accordingly, an object of the present invention is to notify a worker of detailed information relating to a component supply unit.

[0005]

According to the present invention, an electronic component is taken out from a plurality of component supply units mounted at a predetermined mounting position on a supply table by a component take-out tool and mounted on a printed circuit board. In an electronic component mounting apparatus in which display means for turning off or lighting in accordance with the state of each component supply unit is provided corresponding to each component supply unit mounting position, the lighting state when the display means is turned on is determined by the state of the component supply unit. Control means for controlling the change in accordance with the condition.

[0006] By doing so, the states of many types of component supply units can be displayed in an easy-to-understand manner.

In the present invention, the lighting state of the display means at the time of lighting is preferably indicated by a display color at the time of lighting.

By doing so, the display can be easily viewed by the operator.

In the present invention, preferably, the lighting state of the display means at the time of lighting is indicated by the degree of blinking at the time of lighting.

According to the present invention, in the electronic component mounting apparatus according to any one of claims 1 to 3, the state of the component supply unit displayed when the display means is turned on includes a notice of component exhaustion and a component exhaustion. It is to be.

According to the present invention, in the electronic component mounting apparatus according to any one of claims 1 to 4, the state of the component supply unit displayed when the display means is turned on is such that the component supply unit is in the corresponding mounting position. It is intended to include a state in which it is not mounted.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

2 and 3, reference numeral 1 denotes a Y table which moves in the Y direction by rotation of a Y-axis motor 2, and 3 denotes an X table.
This is an XY table that moves in the X and Y directions as a result of moving in the X direction on the Y table 1 by the rotation of the shaft motor 4, and has a chip-shaped electronic component 5 (hereinafter, referred to as a chip component or component) mounted thereon. The printed circuit board 6 is fixed and mounted on fixing means (not shown).

Reference numeral 7 denotes a supply table on which a large number of tape feeders 8 are provided as component supply units for supplying the chip components 5. Reference numeral 9 denotes a supply stand drive motor which rotates the ball screw shaft 10 to rotate the ball screw shaft 1.
0 is screwed through a nut 11 fixed to the supply table 7,
The supply table 7 is guided by the linear guide 12 and moves in the X direction. Reference numeral 13 denotes a rotary table which rotates intermittently. At the outer edge of the table 13, mounting heads 15 having a plurality of suction nozzles 14 are arranged at equal intervals in accordance with an intermittent pitch.

Reference numeral I denotes a suction station, which is a stop position of the mounting head 15 where the suction nozzle 14 suctions and picks up the component 5 from the supply device 8 due to the intermittent rotation of the rotary table 13. 5 is adsorbed.

Reference numeral 16 denotes a component recognizing device for recognizing a positional shift of the component 5 to be picked up by the suction nozzle 14 by using a camera to image the lower surface of the component 5 in a predetermined visual field range and recognizing and processing the image screen. -Provided in section II.

Next mounting head 1 of recognition station II
The stop position of the position 5 is the angle correction station III, and the head rotation device 17 is moved by an angle amount in which the angle amount for correcting the angular position shift of the chip component 5 based on the recognition result of the recognition device 16 is added to the predetermined angle amount. Is the mounting head 15
Is rotated in the θ direction. The θ direction is a direction of rotation about the axis of the nozzle 14 extending in the up-down direction.

The next stop position after the angle correction station III is the mounting station IV, and the component 5 to which the suction nozzle 14 of the station IV sucks the substrate 6
Is mounted by lowering the mounting head 15.

Reference numeral 20 denotes an elevating rod which moves up and down and engages with an oscillating lever 21 of the tape feeder 8 to oscillate and intermittently insert a component housing tape (not shown) in which the chip components 5 are sealed at a predetermined interval. The chip component 5 is fed to the component suction position of the suction nozzle 14. Reference numeral 22 denotes a tape reel for winding the component storage tape (not shown).

Next, a control block of the automatic electronic component mounting apparatus will be described with reference to FIG.

Reference numeral 25 denotes a CPU, which comprehensively controls the operation related to component mounting of the electronic component automatic mounting apparatus in accordance with a program stored in a ROM 27 based on data stored in a RAM 26. The CPU 25 has an interface 28
A control object such as the supply table drive motor 9 is connected via a supply table drive circuit 29. The interface 28 is connected to the component recognition device 16, a suction error detection device 30, and an attachment detection sensor 32 to be described later.
The lamp 34 is connected.

As shown in FIG. 4, the LED lamp 34 is provided on a main body 36 of the electronic component mounting apparatus.
It is attached to a position corresponding to each tape feeder 8 to be mounted when the supply table 7 is stopped at the leftmost standby position. That is, the mounting holes of the tape feeder 8 are formed on the supply table 7 at a predetermined pitch in the direction of the supply table 7, and the LED lamps 34 are disposed so as to face the respective mounting holes. Things. The standby position is a position where the tape feeder 8 is replaced at the stop position. One LED facing the mounting hole of the tape feeder 8
The lamp 34 includes a pair of red and green LEDs. The lamp 34 can be lit by only the red LED and the green LED, and can be lit yellow by turning on both at the same time.

The attachment detection sensor 32 is a proximity sensor, and is attached to the main body 36 so as to correspond to each tape feeder 8. That is, the attachment detection sensor 32 is attached at the same pitch as the pitch of the attachment holes below the attachment position of the LED lamp 34 shown in FIG. It is detected whether the feeder 8 is mounted.

The operation will be described below.

The automatic operation of the electronic component automatic mounting apparatus will be described below together with the lighting state of the LED lamp 34.

First, when the power supply of the apparatus is turned on, the supply table 7 performs the operation of returning to the origin, and stops at the standby position, which is the origin position. At this time, as shown in the flowchart of FIG.
When the power is turned on, the LED lamps 34 do not light up and are colorless. However, when returning to the home position and stopping at the standby position, according to the layout data of the tape feeder (not shown) of the substrate 6 to be produced.
The LED lamp 34 indicating the mounting position where the tape feeder 8 is not scheduled to be mounted in the arrangement data is off,
When the tape feeder 8 is not mounted at the mounting position to be mounted according to the data, the corresponding LED lamp 34 is lit red. If the tape feeder 8 has already been mounted in advance at the mounting position where it should be mounted, the corresponding LED lamp 34 lights green.

Next, the operator mounts a tape feeder 8 of a type to be mounted in a desired mounting hole on the supply table 7 in accordance with the substrate 6 to be produced.
The lighting color of the LED lamp 34 at the position facing the LED changes from red to green. Therefore, all red LEDs
After mounting the tape feeder 8 so that the lamp 34 changes to green, the production operation start switch is turned on.

Thus, the operator can surely confirm whether the tape feeder 8 is mounted at a mounting position of a desired number. However, even if the red lamp 34 remains in a part, the production operation can be started.

Next, when the production operation is started, the supply table 7
Is moved to position the tape feeder 8 at the mounting position (specified by the mounting position number) indicated by the mounting data (not shown) at a position where the suction nozzle 14 of the mounting head 15 in the suction station I can be suctioned. I do. During the operation, as described above, the LED lamps 34 maintain the OFF state and the ON display color state.

Next, after the suction nozzle 14 takes out the component 5, the rotary table 13 rotates intermittently and the mounting head 15 reaches the next station. At this time, in the suction station I, the component 5 is similarly sucked by the next mounting head 15.

Next, when the mounting head 15 reaches the station where the suction error detecting device 30 is placed, it is detected whether or not the component 5 is normally sucked.

When it is determined that the components are normally sucked, the component recognition device 1 is detected at a subsequent recognition station II.
6, the positional deviation of the component 5 is recognized, and thereafter, the angular position and the position in the XY directions are corrected, and the mounting station IV
At the position indicated by the mounting data (not shown) on the printed circuit board.

In this way, the mounting of the component 5 on the printed circuit board 6 is performed, and when the mounting on one board is completed,
The board 6 is discharged, and the mounting of the component 5 on the new board 6 is continued. In this manner, when the remaining number of the components 5 of a certain tape feeder 8 decreases and the end of the tape storing the components 5 wound on the tape reel 22 is detected by a detection sensor (not shown), the CPU 25 determines that the components have run out. Judge that they are close.

Next, the CPU 25 turns on the LED lamp 34 corresponding to the tape feeder 8 in yellow in order to give a notice of the running out of parts in accordance with the flowchart of FIG.
The operator stops the supply table 7 at the standby position at an appropriate time,
The tape feeder 8 that has been notified of a component shortage can be replaced. When the tape feeder 8 is replaced at this time, the corresponding LED lamp 34 lights up in green.

Next, the operation is continued without replacing the tape feeder 8 for which the component shortage has been notified with a new one, and the component 5 is taken out from the tape feeder 8 and finally the component is exhausted. The component 5 cannot be sucked, and it is detected that the component 5 is not sucked at the station where the suction error detecting device 30 is installed.

The CPU 25 determines that the tape feeder 8 is out of components because the absence of the component 5 is detected after the component shortage notice is given, and turns the LED lamp 34 corresponding to the tape feeder 8 red. It is turned on to inform the operator that the parts are out of stock, and if the operation cannot be continued, the operation is interrupted.

Next, when the operator replaces the tape feeder 8, the lighting color of the corresponding LED lamp 34 changes from red to green, and the operator knows that the tape feeder 8 has been replaced, and turns on the switch to continue the production operation. Production operation resumes.

Further, the part shortage notice and the part shortage information are displayed on a monitor (not shown) together with the mounting position number.

In this embodiment, the LED lamp 34 indicates the state of the tape feeder 8 as the component supply unit by changing the display of the color at the time of lighting. It may be displayed or blinking by changing the blinking cycle. Alternatively, it may be performed based on a difference in brightness at the time of lighting.

The tape feeder 8 has been described as the component supply unit. However, the present invention is not limited to this. The chip-type electronic components 5 are stored in a storage chamber in a bulk state, and are aligned and sucked on a chute communicating with the storage chamber. The present invention can be applied to a so-called bulk cassette supplied to the suction position of the nozzle 14, and the present invention can be similarly applied to other cases.

The supply table 7 of this embodiment moves to position the tape feeder 8 at the suction position of the suction nozzle 14. However, the tape feeder does not move, and the mounting head having the suction nozzle 14 does not move. Is an electronic component automatic mounting device that moves to the suction position of each tape feeder, even if the mounting position of each tape feeder is LED
By disposing a display means such as a lamp 34 and changing the color display, it is possible to display various states such as running out of parts or notice.

[0042]

As described above, according to the present invention, various states of the component supply unit can be displayed when the display means is turned on, so that the worker can grasp the state of the component supply unit in a detailed manner.

[Brief description of the drawings]

FIG. 1 is a control block diagram of an electronic component automatic mounting apparatus.

FIG. 2 is a plan view of the electronic component automatic mounting apparatus.

FIG. 3 is a side view of the electronic component automatic mounting apparatus.

FIG. 4 is a perspective view showing a mounting position of an LED lamp in the electronic component automatic mounting apparatus.

FIG. 5 is a flowchart showing a lighting state of an LED lamp from power-on to start of production operation.

FIG. 6 is a flowchart showing a lighting state of an LED lamp from a notice of running out of parts to a start of production operation.

[Explanation of symbols]

 5 Chip-shaped electronic component 6 Printed circuit board 7 Supply stand 8 Tape feeder (Component supply unit) 14 Suction nozzle (Component extraction tool) 25 CPU (Control means) 33 LED drive circuit (Display means) 34 LED lamp (Display means)

Claims (5)

[Claims] An electronic component is picked up from a plurality of component supply units mounted at a predetermined mounting position on a supply table by a component extraction tool and mounted on a printed circuit board, and turned off according to the state of each component supply unit. Alternatively, in an electronic component mounting apparatus in which illuminated display means is provided corresponding to each component supply unit mounting position, control means for controlling a lighting state when the display means is lit according to a state of the component supply unit. An electronic component mounting device, comprising: 2. The electronic component mounting apparatus according to claim 1, wherein the lighting state of the display means at the time of lighting is a display color at the time of lighting. 3. The electronic component mounting apparatus according to claim 1, wherein the lighting state of the display means at the time of lighting is a degree of blinking at the time of lighting. 4. The electronic component mounting apparatus according to claim 1, wherein the status of the component supply unit displayed when the display unit is turned on includes a notice of component exhaustion and a component exhaustion. 5. The state of the component supply unit displayed when the display unit is turned on includes a state in which the component supply unit is not mounted at the corresponding mounting position. An electronic component mounting device according to claim 1.