JP2951072B2 - Component mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting method in which a cylindrical chip component is fitted into a groove by a suction nozzle having a groove formed on a lower surface thereof, which is mounted on a mounting head, and the chip is mounted on a printed circuit board. Related to the device.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. Sho 58-105199 discloses a suction nozzle used for such a component mounting apparatus. According to the prior art, an engaging device (11) for adsorbing a cylindrical electronic component (2) is provided with an engagement groove (13) for fitting the electronic component (2).

[0003] In addition, a square electronic component is sucked by a suction nozzle having a flat suction surface, and these suction nozzles are usually mounted on a mounting head so as to be replaceable. When mounting a suction nozzle for sucking a cylindrical electronic component, if the suction surface is not oriented such that the groove of the suction surface is oriented in a direction within an allowable range with respect to the axial direction of the electronic component to be sucked, Therefore, when installing the nozzle, the operator manually adjusts the groove so that the direction of the groove matches the direction of the electronic component as much as possible.

[0004]

However, in the above-mentioned prior art, there is a disadvantage that it is difficult to judge whether or not the component has been attached so that the component can be reliably sucked, even if the attaching operation is performed carefully.

Accordingly, an object of the present invention is to make it possible to reliably determine whether or not a suction nozzle for sucking a cylindrical chip component has been attached so as to reliably suck the component.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention provides a suction nozzle which is attached to a mounting head and has a groove formed on the lower surface thereof, and a cylindrical chip component is fitted into the groove to be sucked to the printed circuit board. An image pickup means for picking up an image of the lower surface of the nozzle, and a mounting allowable angle of a direction of the groove in a horizontal plane with respect to the mounting head for fitting the chip component into the groove so that the chip component can be sucked. The image forming apparatus further includes a drawing unit that draws an image indicating a range, and a display unit that displays a captured image of the imaging unit and an image of the drawing unit in a superimposed manner.

[0007]

After the worker attaches the suction nozzle having the groove formed on the suction surface to the mounting head, the imaging means takes an image of the suction surface of the nozzle, and attaches the orientation of the groove drawn by the drawing means to the captured image. Images indicating the allowable angle range are superimposed by the superimposing means and displayed on the display means.

[0008]

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

In FIG. 2, (1) is an X-axis motor (2)
And an XY table that moves in the XY directions by rotation of a Y-axis motor (3), on which a printed circuit board (5) on which chip-shaped electronic components (hereinafter, referred to as chip components or components) (4) are mounted is placed. You.

[0010] (6) is a supply table, chip components (4)
A large number of component supply devices (7) for supplying the components are provided. Reference numeral (8) denotes a supply stand drive motor, which rotates the ball screw (9) to fit the ball screw (9) through a nut (not shown) fixed to the supply stand (6). 6) is guided and moved by the linear guide (10).

(11) is a turntable which rotates intermittently, and a suction nozzle (1) is provided on the outer edge of the turntable (11).
The mounting heads (13) having four (2) are arranged at equal intervals in accordance with the intermittent pitch.

The stop position of the mounting head (13) where the suction nozzle (12) sucks and picks up the component (4) from the supply device (7) is a suction station. An outside suction nozzle (12) sucks the component (4).

The position where the mounting head (13) stops next is the recognition station, where the component recognition camera (14) recognizes the displacement of the component (4) that the suction nozzle (12) sucks. Is done.

The next mounting head (1) of the recognition station
The position where 3) stops is the angle correction station, and the suction nozzle (12) is rotated in the θ direction by the nozzle rotation device (15) based on the recognition result by the recognition camera (14), and the rotation angle of the component (4) is determined. The displacement is corrected. A ring-shaped ring light source (16) is provided around the recognition camera (14) as shown in FIG. The camera (14) takes an image.

The next stop position of the angle correction station is:
A mounting station, on which a component (4) to be suctioned by a suction nozzle (12) of the station is mounted on the substrate (5).

The next stop position of the mounting station is a nozzle position confirmation station, and the nozzle position detecting device (17) is located at a position where any of the suction nozzles (12) in the head (13) can pick up the component (4). The head position detector (18) detects whether or not there is a head, and detects the number of the head (13) stopped at this station (hereinafter referred to as head number). The nozzle position detecting device (17) includes two reflective photosensors each comprising a light emitter and a light receiver, and each nozzle (12) is located above the nozzle mounting position of the head (13). The light emitted from the light emitter is reflected and received by the light receiver when it is located at the component suction position in the parentheses, and a hole is formed at a position where the light from the light emitter is reflected. Because the holes do not reflect light, the holes are not drilled or not corresponding to each of the four nozzle mounting positions, so that the ON / OFF state of each photosensor as shown in FIG. Is achieved. FIG. 3 shows the ON / OFF state of the photo sensor when the mounting position is at the suction position for each nozzle position number that is a number indicating the nozzle mounting position. The nozzle (12) is based on the data in this figure.
The rotational position of the mounting position in the head (13) is detected. The nozzle position number is assigned to the head (1
In 3), they are sequentially attached from “1” in the counterclockwise direction in FIG.

The head position detecting device (18) has a structure in which three reflective photosensors each comprising a light emitter and a light receiver are arranged side by side, and the turntable (1) on each head (13) is arranged.
As in the case of the nozzle position detecting device (17) at the predetermined position of 1), each photo sensor for each of the eight head numbers as shown in FIG. ON / OFF state is realized, and the head number of the head (13) stopped at the nozzle position confirmation station is detected. The head numbers are assigned to the respective heads (13) in order from "1" in the counterclockwise direction in FIG. 2, and the head number of the head (13) stopped at each station by the detection of the head number is determined. Recognize.

The next stop position of the nozzle position confirmation station is the nozzle selection station, and the head (1) of the nozzle (12) confirmed by the nozzle position confirmation station.
The head (13) is rotated by the nozzle selection roller (19) based on the rotation position with respect to the position (3), and the suction nozzle (12) for picking up the component (4) is positioned at the component suction position. The nozzle selection roller (19) is rotated by a nozzle selection motor (20) described later.

Next to the nozzle selection station is a nozzle origin alignment station, which is a nozzle rotating device (21).
As a result, the suction nozzle (12) is rotated to the rotation origin position.

Next, the nozzle rotating devices (15) and (21) will be described with reference to FIG.

Since the devices (15) and (21) have the same structure, the nozzle rotating device (15) will be described.

Reference numeral (23) denotes a nozzle rotation motor for rotating the suction nozzle (12) in the θ direction, and its output shaft (24) is connected to a bearing body (26) via a coupling (25). The fitted nozzle rotating body (27) is attached, and the rotating body (27) is rotated by rotation of the output shaft (24).
Is rotated in the θ direction by being guided by the bearing body (26).

The inside of the rotating body (27) is hollow, and a nozzle rotating rod (29) is fitted therein.
The pin (31) protruding from the side surface of the rotating rod (29) is fitted in the vertically long hole (30) drilled in 7).
The rotating rod (29) can move up and down with respect to the rotating body (27), but cannot rotate.

Reference numeral (32) is a spring which engages with a locking portion (33) provided on the rotating rod (29) and urges the rotating rod (29) to descend.

Reference numeral (34) denotes a swing lever which engages with the locking portion from below, and swings up and down via a rod end (36) by a vertically moving lever (35) which is vertically moved by a drive source (not shown). Then, the nozzle rotating rod (29) is moved up and down. At the lower end of the rotating rod (29), a fitting portion (37) is formed, which is obliquely cut from both sides toward the lower end.

The nozzle rotating device (21) is provided with a rotating device (1).
It has the same structure as 5), and the reference numerals are the same except for the motor.

In the nozzle rotating device (21), the nozzle (12) is rotated by the nozzle origin adjusting motor (40).

In FIG. 5, a fitting groove (3) is provided at an upper portion of a nozzle mounting body (38) which penetrates vertically in each nozzle mounting position of the mounting head (13) and is rotatably provided in the θ direction.
9) is formed, and when the rotating rod (29) is lowered, the fitting portion (37) is moved into the fitting groove (39) at a predetermined rotation position.
And the rotation of the rotating rod (29) is
8). The suction nozzle (12) is attached to the nozzle attachment body (38) by a screw (42) so as to be exchangeable as shown in FIG. Suction nozzle (12)
Can be attached to the nozzle attachment body (38) with the rotation position in the θ direction being arbitrarily selected.

Some suction nozzles (12) have different types such as different sizes depending on the type of the component (4) to be sucked. The chip part (4) includes a square part (4) and a cylindrical part (4), and a nozzle (12) for sucking the cylindrical part (4) is V-shaped as shown in FIGS. A groove (41) of the mold is cut into the lower surface, which is the suction surface of the nozzle (12), and is formed into a cylindrical shape by vacuum suction from a vacuum hole (43) communicating with a vacuum source (not shown) at the center of the groove (41). The component (4) is sucked in a state where its axial direction is fitted along the groove (41). In addition, since the cylindrical component (4) has various sizes, the nozzle (12) having the V-shaped groove (41) (hereinafter, referred to as a “nozzle (12) with a V-groove)” is also used. There are several types and each head (1
3) It is attached to the nozzle attachment body (38) at each nozzle attachment position.

However, in the case of the nozzle (12) having a V-groove, depending on the angular position in the θ direction at which the nozzle (12) is mounted on the nozzle mounting body (38), the fitting portion ( When the motor (40) is rotated to the home position after the fitting (37) is fitted into the fitting groove (39), the tape (44) as shown in FIG. When the axial direction of the component (4) sealed in the component receiving recess (44A) of the above (4) is greatly deviated from the longitudinal direction of the groove (41) which is the direction of the groove (41), the groove (4
The component (4) cannot be fitted and sucked by adjusting the axial direction of the component (4) to 1). Also, the component (4) is not always stored in a state where the long side of the rectangular recess (44A) and the axial direction of the component (4) are always parallel, and as shown in FIG. It varies in the direction.

Although this variation is within a certain range, the theoretical direction of the long side of the concave portion (44A), which is the direction in which the chip component (4) is correctly accommodated in the suction station (in the present embodiment, the supply table) When the longitudinal direction of the groove (41) is largely displaced with respect to the (moving direction of (6)), when the chip component (4) is rotated and stored in the opposite direction to the displaced direction, the groove (41) is displaced. The direction of the groove (41) in the suction station may best match the theoretical direction of the long side of the concave portion (44A), since the groove may not be able to be sucked by fitting into the groove. It must be in a direction within a certain allowable range of the θ direction with respect to the theoretical direction.

The allowable range is also different depending on the type of the component (4) because the variation in the recess (44A) is different. Therefore, the type of the target component (4) is different depending on the nozzle (12) having the V groove. Therefore, the allowable range also differs depending on the type of the nozzle (12).

Hereinafter, the longitudinal direction of the groove (41) is fitted to the head (13) whose longitudinal direction coincides with the theoretical direction of the long side of the concave portion (44A) in the suction station. It is called the reference direction.

In this embodiment, a nozzle (12) of the type shown in FIG. 9 is attached to the head (13). The V-grooved nozzle (12) is indicated by “1” in the “V-grooved” column, and the θ angle of the direction of the groove (41) with respect to the aforementioned groove fitting reference direction in the “allowable angle” column. The allowable range of the deviation is shown.

A nozzle (12) of the type shown in FIG. 10 is mounted on the nozzle mounting body (38) at each nozzle mounting position of each head (13).

Next, the control circuit of this embodiment will be described with reference to FIG.

In FIG. 1, (45) is a CPU,
Various data stored in the RAM (46) and the operation unit (4
7) In accordance with a program stored in the ROM (48), various operations relating to the mounting operation of the chip component (4) to the printed circuit board (5) of the component mounting device are controlled based on the signal from 7).

For example, a nozzle origin adjustment motor (4
0), the nozzle rotation motor (23), the nozzle selection motor (20) and the like are driven by the drive circuit (49) under the control of the CPU (45). Reference numeral (50) denotes a turntable rotation motor for rotating the turntable (11), which is also driven by the drive circuit (49).

A graphic RAM (51) for storing graphic figures is connected to a CPU (45) via an interface (52). Reference numeral (53) denotes an A / D conversion circuit that converts an analog signal of an image captured by the component recognition camera (14) into a digital signal. The converted digital signal is input to the video RAM (54) and is captured. Will be stored. The RAM (5
Recognition processing circuit (55) based on the image stored in 4)
The recognition processing such as the position recognition of the component (4) is performed by.

The recognition processing circuit (55) is connected to a CPU (45) via an interface (52).
The data subjected to the recognition processing is transferred to the CPU (45).

A horizontal / vertical synchronization signal is simultaneously supplied from the interface (52) to the graphic RAM (51), the component recognition camera (14), and the video RAM (54) via a horizontal / vertical synchronization signal line (57). Have been. CPU (4) from graphic RAM (51)
The image signal created and stored in 5) is output to the display logic (58) in synchronization with the horizontal / vertical synchronization signal, and the camera (14) is synchronized with the signal by the A / D conversion circuit (53). Are output to a logic (58), and both images are combined and output by an OR circuit in the logic (58). The composite output, which is a digital signal, is D
Is converted into an analog signal by a / A conversion circuit (59),
The monitor (61) displays an image obtained by superimposing a graphic image stored in the graphic RAM (51) on an image captured by the camera (14).

(S0) and (S1) are monitor output selector signal lines. The monitor output selector signal is output to the display logic (58) via the lines (S0) and (S1), and the lines (S0) and (S1) are output. The image from the camera (14) and the graphic RAM displayed in real time by the combination of the high potential "H" and the low potential "L" of the signal
Whether or not the image from (51) is displayed is shown in FIG.
Is determined as follows. When both signal lines are at "H", an image superimposed is displayed. FIG.
In the table, “○” indicates that the image is displayed, and “×” indicates that the image is not displayed.

A monitor (63) for displaying an operation screen and various data is connected to the interface (52) via a display circuit (64).

Reference numeral 65 denotes a notification device which is connected to the interface 52 and notifies the operator of the occurrence of an abnormality when the abnormality occurs.

Next, the operation section (47) will be described.

In FIG. 1, (67) is a numeric keypad for keying in a number, (68) is a cursor key for moving a cursor (69) (see FIG. 12) on the screen of the monitor (63), 70) S for setting the mode, etc.
ET key.

(72) is a teaching key for setting the component mounting apparatus to the teaching mode, (73) is an automatic key for setting the apparatus to the automatic operation mode, and (74) is for setting the apparatus to the manual operation mode. Manual key.

(75) is a start key, (76) is an operation key, and (77) is a stop key.

The RAM (46) stores the information of FIG. 9 and FIG. 10 described above, and the groove fitting reference direction of the direction of the groove (41) of the V-grooved nozzle (12) in FIG. In order to indicate the allowable angle with respect to, for example, the allowable angle is set to “+/− θ”.
As shown in FIG. 13, data for displaying a graphic image of two straight lines that intersect at the center of the screen and intersect at an angle “θ” with the X axis of the screen which is the groove fitting reference direction is represented by a graphic RAM ( 51) is created and stored by the CPU (45) and output in synchronization with the horizontal / vertical synchronization signal. Monitor figures corresponding to other allowable angles (6
To display in 1), clear the RAM (51) and
A new image is stored in the RAM (5) based on the data of M (46).
It is stored in 1). The nozzle (12) is mounted at the recognition station so as to be located at the center of the imaging screen of the component recognition camera (14).
4) Graphic R is displayed on the screen where nozzle (12) is imaged.
When the screens stored in the AM (51) are superimposed,
As shown in FIG. 14, two straight lines pass through the approximate center of the nozzle (12) so that it is possible to confirm whether the direction of the groove (41) is within an allowable range.

In FIG. 14, the image indicated by (79) is a groove area, and the image of the groove (41) is displayed dark. (80) is a plane area, which is an image in which portions other than the groove (41) on the lower surface of the nozzle (12) are displayed brightly. The direction of the groove (41) can be confirmed by comparing the boundary between the two regions with the inclination of the graphic straight line. The nozzle position detecting device (17) and the head position detecting device (18) are also connected to the interface (52).

The operation of the above configuration will be described below.

First, the replacement of the nozzle (12) will be described. Next, if the type of each head (13) corresponding to the substrate (5) on which the chip component (4) is to be mounted and the type of nozzle (12) to be mounted at each nozzle mounting position are as shown in FIG. At the same time, the operator manually moves each head (13) to a station such as a component mounting station and replaces the nozzle (12).

Replacement of the nozzle (12) is carried out by loosening the screw (42) shown in FIG. 6, removing the nozzle (12), mounting the nozzle (12) to be replaced and tightening the screw (42). V-grooved nozzle (12) as shown in FIG.
When mounting, the θ direction is adjusted so that the direction of the groove (41) is as close as possible to the aforementioned groove fitting reference direction stored in the tape (44) of the component (4) at the suction station. Tighten the screw (42). This alignment is performed such that the direction of the groove (41) is in a predetermined direction with respect to the direction of the fitting groove (39).

Next, when the replacement of all the nozzles (12) is completed, the operator presses the teaching key (72) of the operation section (47) to set the component mounting apparatus to the teaching mode. Then Figure 1
The mode setting screen as shown in FIG.
Will be displayed. When this screen is displayed, the cursor key (68) is pressed, and the cursor (69) is moved to "3" indicating "V-groove direction confirmation operation mode" as shown in the screen of FIG. 70) is pressed. Then
The component mounting device is set to the “V-groove direction confirmation operation mode”.

In this state, when the operator presses the operation key (76), the V-groove direction checking operation described below is started.

First, the CPU (45) checks the output state of each sensor of the nozzle position detecting device (17) and the head position detecting device (18). In the detection device (17), if both the first and second sensors are “ON”, it is determined that the nozzle position number of the suction position of the nozzle position confirmation station is “1”, and the detection device ( If all of the first, second and third sensors are "ON" in 18), it is determined that the number of the head (13) stopped at the nozzle position confirmation station is "1". .

Further, the CPU (45) outputs an "H" level signal to both the monitor output selector signal lines (S0) and (S1).

Next, the CPU (45) starts the rotation of the motor (50), and the rotation of the turntable (11) moves the head (13) of the number "1" to the nozzle selection station, where the nozzle selection is performed. The rotation of the roller (19) causes the head (13) to rotate so that the mounting position of the nozzle position number "3" where the nozzle (12) with the V-groove of the nozzle type NO "2" is mounted becomes the suction position. Is done.

Next, when the head (13) of the number "1" stops at the nozzle origin alignment station by the rotation of the turntable (11), the suction nozzle (3) of the nozzle position number "3" is rotated by the nozzle rotating device (21). 12) is rotated to the rotation origin position of the motor (40).

That is, when the vertically moving lever (35) is driven by a driving source (not shown) and descends, the swinging lever (34) swings downward, and the locking portion (33) is urged by the spring (32) to cause the nozzle (33) to move. The rotating rod (29) descends. Then, the nozzle origin adjusting motor (40) rotates to rotate the nozzle rotating body (2).
7) is rotated along the bearing body (26), whereby the nozzle rotating rod (29) is rotated via the pin (31) fitted in the vertically long hole (30), and the fitting portion (37) is rotated. Rotates while descending, and fits into the fitting groove (39) at any of the rotating positions. Even after the fitting, the fitting portion (37) rotates, and the motor (40) is stopped at the rotation origin position of the motor (40) in which the fitting portion (37) is oriented in a predetermined direction.

The above operation is performed on the turntable (1).
1) Nozzle (12) with V-groove, which is performed every intermittent rotation
When the nozzle (12) is present, the nozzle (12) is positioned at the suction position of the component (4) in the head (13) at the nozzle selection station, and the nozzle (12) with the V-groove is moved to the nozzle rotating device ( According to 21), it is positioned at the rotation origin position.

As described above, when the turntable (11) rotates intermittently and the head (13) with the number "1" stops at the recognition station as shown in FIG.
5) is a nozzle (1) with a V-groove based on the contents of the RAM (46).
It is determined that the nozzle type NO “2” which is 2) is stopped at the recognition station, the ring light source (16) is turned on, and the allowable angle “2” is obtained from the contents of FIG. 9 also stored in the RAM (46). +/− 30 degrees ”as shown in FIG.
It is stored in M (51) and output. The graphic image signal is output to the display logic (58) in synchronization with the horizontal / vertical synchronization signal from the horizontal / vertical synchronization signal line (57).

Further, the component recognition camera (14) uses a line (5) in real time to reflect the reflection image of the nozzle (12) with the V-groove by the ring light source (16) at the recognition station.
The image is picked up by the horizontal / vertical synchronization signal of 7), and the image signal is converted into a digital signal by the A / D conversion circuit (53) and input to the display logic (58).

Monitor output selector signal line (S0)
In (S1), since both are at the “H” level, the image signal from the graphic RAM (51) and the camera (1)
The image signal from 4) is synthesized and the D / A conversion circuit (5
Output to the monitor (61) via 9).

As a result, the graphic of FIG. 15 and the real image of the nozzle (12) composed of the groove area (79) and the plane area (80) are superimposed and displayed on the monitor (61) as shown in FIG. Is done. In addition, the monitor (63)
The head number and nozzle position number currently located at the recognition station are displayed.

At this time, the operator looks at the monitor (61) and confirms that the direction of the groove (41) is within the range of +/- 30 degrees indicated by the two straight lines.

Next, the turntable (1)
When the head (13) with the number "2" stops at the recognition station, the nozzle (12) with the nozzle type No. "4" with the nozzle type number "4" with the nozzle position number "3" is moved to the camera ( 14) The image is captured by the graphic RAM (51)
Is cleared once, and the graphic RA is
A graphic indicating an allowable angle of +/− 15 degrees is stored and output to M (51), and a screen as shown in FIG. 14 is displayed on the monitor (61).

The operator compares the direction of the groove area (79) on the screen with the direction of the straight line of the graphic and sees the direction of the groove (4).
Confirm that the direction of 1) is not within the allowable range, and press the stop key (77). By pressing the stop key (77), the turntable rotation motor (50) is stopped, and the head (13) remains stopped at the recognition station. Can be confirmed.

Here, when the operator presses the SET key (70), the head number "2" and the nozzle position number "3" are stored as adjustment NG nozzles in the RAM (46). The operator makes a note of both numbers displayed on the monitor (63) in order to readjust the nozzle (12). Next, by pressing the operation key (76), the turntable rotation motor (50) is rotated, and the intermittent rotation of the turntable (11) is restarted.

The above-described image display operation and confirmation of the operator's screen are performed every time the nozzle (12) with the V-groove stops at the recognition station. When the confirmation of the nozzle position number "3" of the head (13) of "8" is completed and the next head (13) stops at the recognition station, the turntable rotation motor (50) is stopped and the turntable (11) is turned off. The operation stops and the V-groove direction confirmation operation ends.

Thereafter, the operator presses the manual key (74) to manually move the nozzle (12) having the nozzle position number "3" of the head number "2" to an appropriate station such as the component mounting station or the front and rear thereof. Transfer the nozzle (1
2) The mounting angle position of the nozzle mounting body (38) is readjusted, and then the teaching key (7) is set in the same manner as described above.
2) is pressed to select the V-groove direction confirmation operation mode, and the V-groove direction confirmation operation is performed by pressing the SET key (70) and the operation key (76). If the operation is OK, the storage of the adjustment NG in the RAM (46) is deleted.

If the nozzle (12) is not readjusted and the automatic key (73) is pressed, the start key (7
When the automatic operation of the component mounting apparatus is performed by pressing 5), the head (13) of the number "2" stored as the adjustment NG in the RAM (46) is moved to the nozzle (3) of the nozzle position number "3". When the component (4) is sucked by the nozzle (12), the CPU (45) performs a so-called skip operation so that a warning is issued by the notification device (65) and the component (4) is not sucked by the nozzle (12). ) Control.

Further, unlike FIG. 10, the same head (1
When a plurality of nozzles with V-grooves (12) are attached to 3), the operation of confirming the V-groove direction of the head (13) is performed for the first turntable for the first nozzle (12). The rotation is performed at the time of the rotation of (11), but the rotation of the turntable (11) is performed once more for the second nozzle (12), and the V of the same head (13) is attached.
The confirmation operation is performed by rotating the turntable (11) the same number of times as the number of the grooved nozzles (12).
That is, the turntable (11) rotates the same number of times as the number of the V-groove nozzles (12) of the head (13) to which the most V-groove nozzles (12) are attached.

The adjustment of the direction of the groove (41) of the V-groove nozzle (12) is completed, the operation of confirming the V-groove direction is completed, and the directions of the grooves (41) of all the V-groove nozzles (12) are completed. Is within the allowable range, the operator presses the automatic key (73) to set the component mounting apparatus to the automatic operation mode, and presses the start key (75) to automatically operate the component mounting apparatus. Perform

First, as described above, the head position detecting device (1)
At 8), the number of the head (13) stopped at the nozzle position confirmation station is detected.

Next, when the head (13) which starts the intermittent rotation of the turntable (11) and sucks the component (4) to be taken out first stops at the nozzle position confirmation station, the head (13) Nozzle at the suction position (1
The nozzle position number 2) is detected by the nozzle position detecting device (17).

Next, at the nozzle selection station, the nozzle (12) from which the component (4) is to be taken out is selected by the rotation of the nozzle selection roller (19) and is positioned at the suction position in the head (13).

Next, at the nozzle origin adjusting station, the nozzle (12) is rotated to the rotational origin position by the nozzle rotating device (21) in the same manner as in the above-described V groove direction confirmation operation mode. This nozzle (12) is a nozzle (1
In the case of 2), the longitudinal direction of the groove (41), that is, the direction of the groove (41) is within the allowable angle range with respect to the groove fitting reference direction.

Next, the head (13) is located at the suction station and the component (4) is sucked. When the suction nozzle (12) has a V-groove, since the direction of the groove (41) is within an allowable range with respect to the groove fitting reference direction, as shown in FIG. 4) Adsorption is performed.

Next, when the head (13) reaches the recognition station, the camera (14) captures a transmitted image of the component (4) to be sucked by the nozzle (12) from a light source (not shown) from above, and this image is taken. The signal is converted into a digital signal by the A / D conversion circuit (53) and stored in the video RAM (54). Based on the stored image signal data, the recognition processing circuit (55) causes the nozzle ( A position recognition processing operation for 12) is performed.

Next, the head (13) moves to the angle correction station, and based on the recognition result at the recognition station, the nozzle rotation motor (23) of the nozzle rotation device (15).
The nozzle (12) is rotated by the rotation of (4) to correct the angle of the component (4).

Next, when the head (13) reaches the mounting station, the XY table (1) rotates the X-axis motor (2) and the Y-axis motor (3) to correct the position of the recognition result at the recognition station. Is moved in the X and Y directions by the amount of the addition, and the chip component (4) is mounted at a predetermined position on the printed board (5) on the table (1).

Thereafter, the same operation is performed for each head (13).

In this embodiment, the nozzle (1
After the operation of confirming the direction of the groove (41) in 2) is completed, the operator has the head number (1
The nozzle (12) having the nozzle position number of 3) was moved to the mounting station by manual operation, and the direction of the groove (41) was readjusted. However, the head number and the nozzle position number of the adjustment NG are displayed on the monitor (63) after the confirmation operation is completed, and the cursor (69) is moved to the head number and the nozzle position number by operating the cursor key (68). , The operation key (76) or the like, the head (1
The nozzle (12) of the nozzle position number of 3) is moved to a predetermined readjustment position, and when the readjustment is completed, the cursor (69) is set to the head number and the nozzle position number of the next adjustment NG, The same operation is performed by pressing the operation key (76) or the like, and after the adjustment of all the nozzles (12) of the adjustment NG is completed, the above-described V groove direction confirmation operation is performed by pressing the operation key (76) again. It may be. In this case, during the confirmation operation, the stop key (77) is not pressed, and the SET key (70) can be operated without stopping the motor (50).
, The head number and the nozzle position number may be stored in the RAM (46) as adjustment NG.

In this embodiment, during the V-groove direction checking operation, the turntable rotation motor (50) is stopped by the stop key (77) and then the SET key (70) is depressed and stored. The NG is not stored, so the SET key (70) is not pressed, and the motor (50) is stopped by pressing the stop key (77) when it is desired to take a long time to check the adjustment NG. When moving, the operation key (76) may be pressed.

In this embodiment, in the V-groove direction confirming operation mode, the nozzle (1) with the V-groove which moves to the recognition station by the intermittent rotation of the turntable (11).
According to the type 2), the CPU 45 automatically displays the intersection straight line indicating the allowable range in the direction of the groove 41 from the graphic RAM 51 so as to be superimposed on the real-time nozzle image. The V-grooved nozzle (12) to be checked is moved to the recognition station by manual operation, and the operator uses the screen of the monitor (63) to draw an intersection straight line indicating an allowable range corresponding to the nozzle (12). May be displayed on the monitor (61) so as to be superimposed on the nozzle image.

Further, the drawn graphic image uses two straight lines that intersect at the center of the screen to indicate the allowable range with respect to the groove fitting reference direction. However, the two lines do not need to intersect at the center of the screen, and do not intersect. +/- to groove reference direction
May be displayed at an appropriate position on the screen.

Further, the graphic image thus drawn may be displayed such that the white portion of the image of the nozzle (12) is black and the black portion is white.

Further, the direction of the V-shaped groove was adjusted at the mounting station or the like. At the angle correction station, the nozzle mounting body (38) was fitted with the fitting portion (37) and the motor (40) with the fitting groove (39). Motor (2) that matches the rotation origin
It is also possible that the camera is fitted so as not to rotate while being fixed at the rotation origin position of 3), and an image can be taken with a camera from underneath, and a graphic image can be displayed so as to be adjusted to an allowable range.

[0090]

As described above, the present invention determines whether or not the direction of the groove on the lower surface of the suction nozzle is within the allowable mounting angle range.
The operator can see on the screen and can reliably determine whether or not the component is sucked.

[Brief description of the drawings]

FIG. 1 is a control block diagram of the present invention.

FIG. 2 is a plan view of a component mounting apparatus to which the present invention is applied.

FIG. 3 is a diagram illustrating a detection result according to a state of each sensor of the nozzle position detection device.

FIG. 4 is a diagram showing detection results based on the state of each sensor of the head position detection device.

FIG. 5 is a side view showing the structure of the nozzle rotating device.

FIG. 6 is a side view showing a nozzle having a V-shaped groove.

FIG. 7 is a view of a nozzle with a V-groove as viewed from below.

FIG. 8 is a plan view showing a state where a cylindrical chip component is stored in the tape.

FIG. 9 is a diagram showing types of suction nozzles.

FIG. 10 is a diagram showing nozzle type numbers attached for each head number and nozzle position number.

FIG. 11 is a diagram illustrating a display state of a graphic image and a captured image of a camera according to a state of a monitor output selector signal.

FIG. 12 is a view showing a screen for mode selection on a monitor.

FIG. 13 is a diagram illustrating a graphic image.

FIG. 14 is a diagram in which both a graphic image and a captured image of a camera are displayed on a monitor.

FIG. 15 is a diagram illustrating a graphic image.

FIG. 16 is a diagram in which both a graphic image and a captured image of a camera are displayed on a monitor.

FIG. 17 is a side view showing a state where a suction nozzle is positioned on the component recognition camera.

[Explanation of symbols]

 (4) Chip-shaped electronic component (chip component) (5) Printed circuit board (12) Suction nozzle (13) Mounting head (41) Groove (45) CPU (drawing means) (51) Graphic RAM (drawing means) (61) Monitor (display means)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-165099 (JP, A) JP-A-3-68200 (JP, A) JP-A-3-52300 (JP, A) JP-A-2- 164000 (JP, A) JP-A-62-154700 (JP, A) JP-A-61-219200 (JP, A) JP-A-2-226482 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05K 13/04 H05K 13/08

Claims (1)

(57) [Claims] 1. A component mounting apparatus for fitting a cylindrical chip component into a groove by a suction nozzle attached to a mounting head and having a groove formed on a lower surface thereof, and mounting the chip on a printed circuit board. Imaging means for imaging the lower surface, and drawing means for drawing an image indicating an allowable mounting angle range of the direction of the groove in a horizontal plane with respect to the mounting head for fitting the chip component into the groove and enabling suction. And a display unit for displaying a captured image of the imaging unit and an image of the drawing unit in a superimposed manner.