JPH0590800A - Component mounting device - Google Patents

Abstract

PURPOSE:To prevent a component supply unit from being improperly mounted on the supply base. CONSTITUTION:When an erroneous mount preventing pin 82 is not engaged in a groove 82 and on a lock plate 81, the operator can find that both mounting pins 73 of a component supplying unit 7 are not in mounting holes 76, 77 and erroneously mounted, thereby preventing the erroneous mounting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning projection provided on the other side of a positioning hole formed on one side of the supply table or a component supply unit at two positioning positions before and after forming a pair of the supply table. The present invention relates to a component mounting apparatus in which the supply units, which are respectively positioned together, are arranged side by side on the supply base, and a suction nozzle sucks a chip component supplied from the supply unit and mounts it on a printed circuit board.

[0002]

2. Description of the Related Art A technique relating to the component supply of a component mounting apparatus of this type is disclosed in Japanese Patent Laid-Open No. 64-28898.

In this prior art, the component supply unit (11) has positioning pins (2) arranged at the front and rear two points on the lower surface thereof, and a corresponding pair of fittings formed on the supply base. The fitting holes (8) are fitted and positioned in the holes (8), and a large number of such fitting holes (8) are arranged in a direction orthogonal to a straight line connecting both holes. A component supply unit (11) for supplying chip components was arranged. Further, one of the pair of fitting holes is formed in a long hole shape in order to absorb a dimensional error.

[0004]

However, in the above-mentioned prior art, one of the positioning pins of the component supply unit is provided.
It can be inserted into one of the mating holes of a pair, and the other pin can be put into the mating hole of the adjacent pair.Also, if the lateral gap of the mating holes is short, you will not notice that you inserted it by mistake, and it will stick. There is a drawback that the suction position where the nozzle descends and the position where the component is supplied are displaced and a suction error occurs.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to prevent the component supply unit from being installed in the supply base in the wrong direction.

[0006]

For this reason, according to the present invention, the positioning holes provided in one of the supply base and the component supply unit at the positioning positions of the front and rear two points forming a pair of the supply base are provided in the other. In the component mounting apparatus, wherein the supply units, in which the protrusions are fitted and positioned respectively, are arranged in parallel on the supply base, and the suction nozzle sucks the chip components supplied from the supply unit to mount them on the printed circuit board. Positioning holes are provided at positions corresponding to the respective paired positioning positions of the supply base, or at one of the supply units, and when the wrong mounting prevention hole is fitted in the supply unit, and the other is fitted in the prevention hole. In addition, an erroneous mounting prevention protrusion having a length with which the positioning protrusion is fitted is provided.

[0007]

[Function] When the incorrect mounting prevention projection does not fit into the incorrect mounting prevention hole, the positioning projection does not fit into the positioning hole at both the front and rear positioning positions forming a pair, and the incorrect mounting prevention projection does not fit into the incorrect mounting prevention hole. Only when is fitted, the positioning projection is fitted into the positioning hole at the front and rear positioning positions forming a pair.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

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

Reference numeral (6) is a supply table, which is a chip component (4).
A large number of component supply devices (7) for supplying the are provided. Reference numeral (8) is a supply base driving motor, which rotates the ball screw (9) to engage the supply base (6) with a nut (not shown) fitted to the ball screw (9) and fixed to the supply base (6). 6) is guided by the linear guide (10) and moves.

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

The suction nozzle (12) sucks the component (4) from the supply device (7) and picks up and removes the mounting head (13) is the suction station, and the suction station is the first position of the turntable (11). The suction nozzle (12) located outside sucks the component (4).

The position at which the suction head (13) stops next is a recognition station, in which the component recognition device (14) recognizes the positional deviation of the component (4) which is sucked by the suction nozzle (12). ..

The next mounting head (1
The position where 3) is stopped is the angle correction station, and the suction nozzle (1
2) is rotated in the θ direction by the nozzle rotation roller (15), and the positional deviation of the rotation angle of the component (4) is corrected.

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

Next, the component supply device (7) will be described below.

2 and 4, reference numeral (18) is a tape for enclosing the chip component (4) at a constant interval, and a cover tape (19) covers the chip component (4) from above so that the chip component (4) does not fly out. It is attached. The tape (20) of the present embodiment is a paper tape having a flat back surface as shown in FIG. 8, and encloses a small chip component (4) such as “1 mm × 0.5 mm”.

The supply device (7) intermittently feeds the tape (18) in accordance with the interval of the enclosed component (4) and supplies the component (4) to the suction position of the suction nozzle (12). is there. Reference numeral (20) is an elevating rod for driving this tape feeding operation, which is mounted above the component supply device (7) stopped by the movement of the supply base (6) at the suction position of the component (4) and is not shown. It moves up and down by the drive source.

Reference numeral (22) is a rocking lever pivotably supported by a supporting shaft (25) on a cassette side wall (24) extending above the cassette body (23), and is a descending lift bar (20). ) Is formed on the lever (22) with an engaging piece (2
6) is abutted against and pressed downward to swing from the position of FIG. 2 to the position of FIG. 4 and the lifting bar (20) rises,
It swings to the position shown in FIG. 2 which is regulated by the stopper pin (28) by the urging force of the tension spring (27) stretched between the engaging piece (26) and the cassette side wall (24).

As shown in FIG. 11, the stopper pin (28) has a spindle screw (29), which is a separate component from the stopper pin (28), screwed into a screw hole formed in the pin (28). It is eccentrically screwed to the cassette side wall (24),
As shown in FIG. 12, when the swing lever (22) is locked by the stopper (28), the clearance between the swing lever (22) and the elevating rod (20) is changed by screwing the swing lever in a restricted position. It can be adjusted. Since the ascending position of the elevating rod (20) is adjusted on the main body side, the variation for each supply device (7) is adjusted, but the elevating rod (20) is started to descend by a cam (not shown). However, since the cam curve is set so that the descending speed and acceleration are smaller as the descending speed is closer to the start of descending, the smaller the clearance between the elevating rod (20) and the swing lever (2) is.
The impact when contacting 2) is small, and the component (4) to be adsorbed is less likely to be displaced or popped out by the impact, and the adsorption nozzle (12) can reliably adsorb the component (4). .. However, on the other hand, even if an attempt is made to reduce the gap, it is dangerous to hit the lifting rod (20) due to variations in the supply device (7) itself, variations in its mounting, vibrations, etc. is doing.

A transmission lever (30) is rotatably pivoted at the lower end of the swing lever (22), and a feed lever (31) pivotally supported at the other end of the lever (30). The movement of the swing lever (22) is transmitted to. The feed lever (31) is swingably attached to the cassette body (23) about a feed lever support shaft (32) as a fulcrum, and is rotated counterclockwise by swinging the swing lever (22) counterclockwise. 2, the feed claw (33) pivotally supported at one end meshes with the feed gear (34) pivotally supported by the support shaft (32), and the feed stopper (35) counterclockwise in FIG. Rotate by a predetermined angle to the position regulated by. A sprocket (36) is integrally attached to the feed gear (34), and a flat chute surface (37) formed on the cassette body (23).
The tape sprocket (36) is placed on the feed hole (38) formed on the left side in the transport direction of the tape (18) which is placed on the reel cassette on the right side in FIG. The feed pins (39), which are planted at regular intervals on the outer periphery, are fitted, and the tape (18) is fed to the left side in FIG. The first component (4) housed in is located at the component suction position (T) immediately before the portion where the feed pin (39) is fitted. The suction position (T) is provided as close as possible to the feed pin (39) in order to reduce the influence of expansion and contraction of the tape (18) and bending. Reference numeral (40) is a reverse rotation preventing claw that is fitted into the feed gear (34) by the urging force of the spring (41) to prevent the gear (34) from rotating in the clockwise direction.

Reference numeral (43) is a suppressor pivotally supported on the cassette side wall (24) by a support shaft (44), and the tape (18) fed on the chute surface (37) is moved upward by the biasing force of the spring (45). The tape (18) is restrained from being lifted up from above, and the cover tape (1
It has an opening (46) for stripping 9). A pin (48) is provided at the left end of the suppressor (43) in FIG.
The suppressor pressing piece (51) is urged counterclockwise in FIG. 2 by a spring (50) extending from the cassette body (23) and attached, and the suppressor pressing piece (51) is a pin (48). And the downward pressing of the suppressor (43) is reinforced because the pressing force is insufficient with only the spring (45) because the suppressor (43) is long. Further, the suppressor (43) is bent to have a U-shaped cross-section with an open lower part in order to increase the strength, and the chute surface (37)
While covering the top, the tape (18) is also roughly regulated from the side of the chute surface (37). The restriction from the side is that the gap between the tape (18) and the end surface is about 0.5 mm, and the position in the lateral direction is not fixed.

The cover tape (19) peeled off from the tape (18) is attached to the cover tape reel (54) pivotally supported on the side wall (24) by the reel support shaft (53).
4) It is wound from the bottom.

A mechanism for winding the reel (54) will be described.

A ratchet lever (55) is rotatably supported on the reel support shaft (53), and a roller (56) is rotatably supported at the end of the ratchet lever (55) so as to swing with the lever (55). A tension spring (5) stretched between levers (22)
The roller (56) is moved by the urging force of
Pressed in 2). The ratchet lever (55) has a ratchet pawl (59) which is capable of meshing with a ratchet gear (58) formed integrally with the reel (54).
When the swing lever (22) swings counterclockwise by lowering the lifting rod (20), the reel (54) swings counterclockwise by swinging the ratchet lever (55). Then, the cover tape (19) is wound up. (6
Reference numeral 0) is a reverse rotation preventing claw that meshes with the ratchet gear (58) to prevent the reverse rotation of the reel (54).

A projecting piece (62) is formed at the right end of the suppressor (43) in FIG.
By allowing the protrusion piece (62) to enter below the suppressor engagement protrusion (63) formed below 2) as shown in FIG. 5, the suppressor (43) can be kept in an elevated state. Has been done. The swing lever (22) is
The protrusion (63) is bent at a position below the support shaft (25) in the depth direction in FIG.
2) is engaged.

In the state shown in FIG. 5, when the operator pushes the engaging piece (26) of the swing lever (22) downward with his or her hand, the projection (63) escapes to the right as shown in FIG. , Spring (4
The suppressor (43) is lowered by the urging force of 5), and the tape (18) can be pressed. When the suppressor (43) is lifted, if the suppressor (43) is lifted by hand, the projecting piece (62) can push the projecting part (63) against the tension spring (27) and allow it to enter the lower part thereof. At this time, the projecting piece (62) presses the suppressor engaging projection (63) by the biasing force of the spring (45), and the swing lever (22) is rotated clockwise together with the biasing force of the tension spring (27). The lever (22) is locked to the stopper pin (28), and the protruding piece (62) is locked to the protruding portion (63) at this locked position.
3) is retained as shown in FIG.

Further, when the suppressor (43) is pressing the tape (18) as shown in FIG. 2, the lifting rod (20) is used.
Even when the lever (22) is not pressed, the lever (22) is in a position to be locked by the stopper pin (28) so that the protrusion (62) does not press the lever (22). The upper part of the suppressor engaging protrusion (63) of the above has escaped.

Reference numeral (64) is a shutter slidably attached to the suppressor (43), which is the cassette body (23).
The shutter (66) pivotally supported around the shutter support shaft (65) swings the tape (18).
Sliding on top. The shutter lever (66) swings due to the reciprocating movement of the shutter drive lever (67) engaged therewith and the urging force of the spring (68), but the tape (18).
The shutter (6
4) The upper part of the component (4) covered with the upper cover tape (19) is wound on the pressing piece (64A) (see FIG. 13) formed by bending the shutter (64). Of the lever (6) is prevented only when the nozzle (12) is lowered to suck the component (4).
7) is pulled to the left side of FIG. 2 so that the shutter (64), that is, the pressing piece (64A) moves to open the upper surface of the component (4) at the suction position (T). The shutter drive lever (67) is provided not on the component supply device (7) but on the main body side of the component mounting device and is driven by a drive source (not shown).

Reference numeral (69) is a shutter lever stopper which is locked to the shutter lever (66) which is swung by the urging force of the spring (68), and the shutter (64) holds the component (4) at the component suction position (T). The shutter (64) is positioned in the cover position, and the distance between the shutter drive lever (67) and the shutter lever (66) at that time is determined. Since the stopper (69) is eccentrically attached to the cassette body (23) by a spindle screw (69A) and a nut (69B), the screw (69A) is loosened and rotated as shown in FIGS. 13 and 14. The shutter lever (6
The shutter (64) can be adjusted so that the gap between the drive lever (67) and the drive lever (67) does not collide with the movement of the supply table (6) and the impact due to the movement of the drive lever (67) is reduced.
The position of can be adjusted. This makes it possible to adjust individual variations of the supply device (7). 13 and 1
As indicated by 4, the stopper (69) is displaced by a width of 0.5 mm and the position of the shutter (64) is displaced by 0.7 mm.

Next, the guide of the tape (18) on the chute surface (37) will be described with reference to FIGS. 2, 7 and 8. Tape (18) on chute surface (37)
2 is regulated by the cassette side wall (24) from the front side in FIGS. 2 and 7, and is regulated from the other side in FIGS. 2 and 7 by the guide wall (70), the guide (71) and the guide (72). .. Guide wall (70) is chute surface (37)
The tape (18) is integrally formed with the chute surface (37) and is provided upright from the chute surface (37). .. The gap between the cassette side wall (24) and the end surface of the tape (18) is also about 0.1 mm or less.

The tape (18) is pulled and fed at the position of the feed hole (38) by the feed pin (39) embedded in the sprocket (36), but the position of the feed hole (38) is the position of the tape (18). Since the tape is displaced to one side, a frictional force that tries to stop between the chute surface acts on the opposite side, and particularly in the case of the tape (18) having a flat bottom surface as in this embodiment, the pin (39) is engaged. 7 in the clockwise direction in FIG. 7, but the cassette side wall (24) restricts the tape (18) from shifting in the clockwise direction in FIG. 7. The guide wall (70) hits the cassette side wall (24) and abuts against the tape (18) which tends to shift in the counterclockwise direction in FIG. 7 and regulates the shift.

The sprocket (36), which is the position where the feed pin (39) is inserted all the way into the feed hole (38)
10 mm from the top position of the sprocket to the component suction position (T), and the guide wall (7
0) 30mm to the start of rising, 5 from the top of the sprocket to the highest position of the guide wall (70).
6 mm, cassette side wall (2
The distance to the end of 4) is 86 mm.

If there is no guide wall (70) and only the guide (71) is present, the distance from the top position of the sprocket (36) is about twice the distance to the cassette side wall (24), and even if the guide (71) regulates it. At a position closer to the suction position (T) than that, the tape (18) is bent in the lateral direction, and the component (4) is displaced at the suction position.
In contrast, the guide wall (70) and the cassette side wall (24)
In the position of, the distance from the top position of the sprocket (36) is due to the rigidity of the tape (18), and the bending of the tape (18) is displaced at the suction position (T) by the suction nozzle (1).
This is a range in which there is no problem in the suction by 2) and the component recognition by the recognition device (14).

The guide wall (70) and the cassette side wall (2
Although the position of 4) is closer to the component suction position (T), the bending of the tape (18) may be restricted even if the rigidity of the tape (18) is weak.
Since the suppressor (43) is provided with a side wall and covers the chute surface (37) at a position where the suppressor (43) is pressed from above, the top surface of the suppressor (43) presses the upper part of the guide and the tape (18) cannot be pressed. Since the suppressor (43) does not press the tape (18), the guide wall (70) is erected at a position closest to the suction position (T). The positional deviation at (T) is further reduced.

A guide may be provided closer to the suction position (T) on the cassette side wall (24) side, but there is a feeding mechanical part on the sprocket (36) side, and the chute surface (37) is attached to the tape (18). ) Is not possible due to the width restriction of the supply device (7), and the guide cannot be moved closer to the suction position (T). However, it is possible to escape the mechanical parts and to widen the chute only partly to start up the guide, but it is difficult to process.

Further, although the suppressor (43) is difficult to process and its strength is weak, a guide wall is provided at a position closer to the suction position (T) on any side of the tape (18), and that portion is removed. The suppressor (43) may be perforated to allow escape. The position closer to the suction position (T) may be the left side of the suction position (T) in FIG. 7. In addition, the guide wall (7
0) may be firmly fixed with a screw or the like as another component.

Next, the component supply device (7) is attached to the supply table (6).
The mechanism to be attached to will be described with reference to FIGS. 1, 2, 9 and 10.

Reference numeral (73) is a mounting pin attached to each of the front and rear of the lower portion of the cassette body (23) of the supply device (7), and the mounting plates (74) on the front and rear of the supply base (6).
The supply device (7) is positioned by fitting it into the mounting holes (76) (77) formed in (75).
Reference numeral (78) is a lock lever pivotally supported by a support shaft (79), and a lock claw (80) at the tip of the lever (78) is provided on a lock plate (81) provided on the supply base (6). The supply device (7) is pressed against the lower surface of the claw engaging protrusion (81A).
To the supply table (6).

Reference numeral (82) is an erroneous mounting prevention pin, which is provided at a position to enter a groove (83) cut out in the lock plate (81) under the cassette body (23). The mounting plate (74) is provided with round mounting holes (76) of a circular shape, into which the cylindrical mounting pins (73) can be removably inserted, though there is no play between them. ) Are drilled side by side on a straight line in the moving direction.

Mounting hole (77) of mounting plate (75)
Is an elongated hole having a width substantially the same as the diameter of the mounting pin (73) and longer than the diameter in a direction substantially orthogonal to the moving direction of the supply base (6) and corresponding to each mounting hole (76). Are provided on a straight line (L) substantially orthogonal to the moving direction of the supply table (6), and each mounting hole (77) has an interval "A /" on the straight line in the moving direction of the supply table (6). 2 ".

In the component supply device (7), the mounting pins (73) before and after the device are installed in the mounting holes (76) (77) on the straight line (L) which is the direction orthogonal to the moving direction of the supply base (6). It is a proper position to be fitted, and when it is mounted in this way, the erroneous mounting prevention pin (82) enters into the corresponding groove (83) and can be locked by the lock lever (78). In this embodiment, the incorrect mounting prevention pin (82) is provided on the straight line connecting the positions of the front and rear mounting pins (73), so that the position of the groove (83) is the mounting hole (76).
Lock plate (8) on the straight line (L) connecting (77)
It is formed by cutting the end of 1) substantially vertically, and its width is incorrect when the front and rear mounting pins (73) (73) are inserted into the mounting holes (76) (77) arranged on the straight line (L). The mounting prevention pin (82) enters and the front and rear mounting pins (73) (7
If 3) is inclined with respect to the direction as shown in FIG. 1, the pin (82) cannot enter and will ride on the plate (81).

Further, the depth of the groove (83) in the left-right direction in FIG. 2 is such that when the front pin (73) is fitted in the mounting hole (76), the pin (82) is formed on the vertical surface at the back of the groove (83). The pin (73) in front of the mounting hole (7)
6) The lock claw (80) biased to the left in FIG. 2 by the spring (86) when not in the claw engaging projection (81A)
The end surface of the pin (82) is pushed so that the pin (82) does not engage with the vertical surface at the back of the groove (83) to be locked.

The mounting pins (73) (73) on the front and rear of the supply device (7) to be mounted on the supply base (6) are such that the mounting hole (77) is an elongated hole and the mounting hole (76).
Arrangement interval "A /" of (77) in the moving direction of the supply table (6)
Due to the narrowness of "2", the attachment holes (76) (77) in directions other than the direction orthogonal to the moving direction of the supply base (6) will be fitted together. In this state, the lowering position of the suction nozzle (12) and the position of the component (4) to be supplied do not match.

The erroneous mounting prevention pin (82) and the groove (83) fitted into the erroneous mounting prevention pin (82) prevent such a state. That is, the length of the mis-installation prevention pin (82) is sufficiently long that the pin (82) does not enter the groove (83) and the plate (8)
With the feeding device (7) substantially horizontal while riding on 1), the tips of the front and rear pins (73) are attached to the mounting plate (74).
Higher than (75), both mounting holes (76)
Even if the tip of the pin (73) is not inserted in (77), both pins (73) should not be inserted, and when the supply device (7) is tilted back and forth, it must be tilted enough for the operator to understand. Since the pins (73) and (73) do not come into contact with the mounting plates (74) and (75), the worker can notice that they are incorrectly mounted.

In the lock structure of this embodiment, the length of the pin (82) is slightly shorter, or the pins (73) (7)
If the length of 3) is long, it cannot be seen that the feeding device (7) is tilted, and if either or both of the mounting holes (76) (77) have any of the pins (73) (73) inserted, the lock claw ( 80) is locked by pushing the end face of the lock plate (81), which makes it difficult to distinguish from the normal state. However, the structure of this lock mechanism may be changed or an alarm device may be provided. Therefore, even if the pin (82) is short and the plate (81) rides on the plate (81) and the feeding device (7) floats a small distance, it can be understood that the pin (82) is not locked. For example, it is possible to know that it is erroneously installed due to the fact that it is not locked.

Although there are several kinds of widths in the direction in which the parts supply device (7) is arranged on the supply table (6), as shown in FIG. 9, the supply devices (7) having the same width are arranged and the mounting hole (76) is provided. ) (7
The one that is arranged every other item of 7), that is, the one that is arranged with almost no gap at the interval of "A" is the narrowest. The next largest one is every two mounting holes (76) (77), that is, "3A /
They are arranged at intervals of 2 "with almost no space. As shown in FIG. 10, these two kinds of width supply devices (7) can be arranged without any gap in any arrangement.

In this embodiment, "A" is 17 mm, the width of the narrowest supply device (7) is 16.5 mm, and the width of the next widest one is 2.
It is 3 mm.

In FIG. 2, reference numeral (84) is a supply device (7).
In the figure, a reflector plate is provided adjacent to the guide (72), and is attached substantially horizontally on the cassette body (23) below the tape (18) extending from the reel (not shown) to the component suction position. A photo sensor (85) is fixedly attached to the main body side (not shown) of the component mounting device at a position above the reflection plate (84) of the supply device (7) stopped at the component suction position. The photo sensor (85) is composed of a light projector and a light receiver, and a light beam is emitted from the light projector toward the reflector plate (84) and the reflector plate (84).
It is reflected by and received by the light receiver.
When the tape (18) is on the reflection plate (84), the light beam emitted from the projector is diffused and reflected by the tape (18), so that the light reception to the light receiver is insufficient and the tape (18) is present. Is detected. Therefore, the presence or absence of the tape (18), that is, the tape end can be detected.

When the output of the photo sensor (85) is lost due to a failure such as a wire break, it is determined that the tape is not present despite the presence of the tape, that is, the reflected light from the reflection plate (84). If the light is not received, the same output as when the wire is disconnected should be output.

The operation will be described below with the above configuration.

First, depending on the type of the printed circuit board (5) on which the chip component (4) is to be mounted, the worker installs the component supply device (7) on the supply base (6). That is, for example, in FIG.
As shown in Fig. 1, the mounting pins (7) before and after the feeding device (7)
3) are mounting holes (76) and (7) which are lined up on a straight line (L), respectively.
The supply device (7) is positioned by being inserted into the lock lever (7) after being rotated counterclockwise.
By rotating 8) clockwise, the lock claw (8
0) is the claw engaging projection (81A) of the lock plate (81)
Is fixed by engaging with the lower surface of the. (See Figure 2).

At this time, since the erroneous mounting prevention pin (82) is inserted in the groove (83), the mounting pin (73)
(73) is inserted into the mounting holes (76) (77) and the feeding device (7) is attached at the correct position, but the mounting pins (73) before and after the feeding device (7) are attached to the feeding base (6). Is inclined with respect to the direction orthogonal to the movement direction of the pin (82) and the rear mounting pin (73) is inserted into the adjacent mounting hole (77) as shown in FIG. (8
3) can't get inside, so pin (7
3) Since the (73) cannot be inserted into the mounting holes (76) (77), the worker notices that the feeding device (7) is mistakenly inserted and puts it in the correct position.

In this way, as shown in FIG. 9 and FIG. 10, for example, they are arranged at intervals of "A" or "3A / 2" depending on the width dimension of the supply device (7).

In this way, when the supply device (7) is arranged on the supply base (6), the suction nozzle (12) sucks the component (4) from the supply device (7) and the printed circuit board is obtained. The mounting operation to (5) is performed.

Next, when an operation section (not shown) is operated to start automatic operation, the motor (3) is rotated to supply the desired component (4) via the ball screw (9). Suction nozzle (1
The supply table (6) is guided and moved by the linear guide (10) so as to move to the suction position of (2).

During this movement, the shutter lever (66) is moved around the shutter support shaft (65) by the spring (68).
The shutter (64) is moved in the tape feeding direction, and the upper cover tape (19) is peeled off.
8) The top of the component (4) enclosed inside is covered to prevent the component (4) from jumping out even during movement.

When the supply device (7) is stopped, the lifting rod (2
0) descends and contacts the engaging piece (26) of the swing lever (22) and pushes it down, so that the swing lever (22) swings counterclockwise as shown in FIG. The feed lever (31) swings counterclockwise via the
3) rotates the feed gear (34) to rotate the sprocket (3).
6) Rotate. The feed pin (39) feeds the tape (18) with a predetermined pitch by the rotation of the sprocket (36), but the end face of the tape (18) in the direction of the feed hole (38) by the cassette side wall (24) as shown in FIG. However, since the end face of the tape (18) in the direction opposite to the feed hole (38) is restricted by the guide wall (70), the tape (18) is not bent at the suction position, and the component (4) is positioned at the correct position. Will be done. Further, during the feeding operation of the tape (18), the suppressor (43) holds down the tape (18) so as not to float upward.

On the other hand, when the swing lever (22) swings counterclockwise, the ratchet lever (55) swings counterclockwise via the tension spring (57), and the ratchet pawl (5)
9) meshes with the ratchet gear (58) and rotates the cover tape reel (54) counterclockwise by a predetermined angle. The rotation of the reel (54) causes the opening (4) of the suppressor (43).
The cover tape (19) is wound on the reel (54) while being peeled off from the tape (18) at the position 6). Also,
At this time, the shutter (64) covers the upper part of the component (4) from which the cover tape (19) on the upper surface is peeled off so that the chip component (4) does not fly out.

Next, when the elevating rod (20) moves upward, as shown in FIG.
The swing lever (22) is attached to the tension spring (2
The urging force of 7) returns to the clockwise direction, the feeding operation of the tape (18) and the peeling operation of the cover tape (19) are stopped, and the chip component (4) to be adsorbed next is the component by the adsorption nozzle (12). Located at the adsorption position.

Next, the shutter drive lever (67) is moved to the position shown in FIG.
When it is pulled to the left, the shutter lever (66) is engaged, the lever (66) is swung clockwise, and the shutter (64) moves to the right. Thus, the upper side of the chip component (4) at the component suction position is opened.

Next, the suction nozzle (12) descends and picks up the correct position of the component (4) at the component suction position and rises. When the component suction operation of the suction nozzle (12) is completed, the shutter drive lever (67) returns to the right side, and the shutter lever (66) swings counterclockwise by the urging force of the spring (68), and the shutter (64 ) Returns to the left and covers the component suction position.

Next, when the nozzle (12) picks up the part (4), the turntable (11) rotates intermittently, the next nozzle (12) moves to the picking station, and the part to be taken out next ( The supply device (7) for supplying 4) moves to the suction position of the nozzle (12) by the rotation of the motor (8). When the nozzle (12) sucks the component (4), the turntable (11) rotates intermittently, and the nozzle (12) that first sucks the component (4) moves to the recognition station.

Then, at the station, the nozzle (1
The adsorbed component (4) of 2) is the component recognition device (14).
Be recognized by. At this time, since the suction nozzle (12) is sucking the position within the recognizable permissible range of the component (4), it cannot be recognized. The nozzle (12) stopped at the recognition station due to the intermittent rotation of the next turntable (11) moves to the angle correction station,
The nozzle rotation roller (15) corrects the positional deviation of the rotation angle of the component (4) in the θ direction based on the recognition result of the recognition device (14).

The nozzle (1) stopped at the angle correction station due to the intermittent rotation of the next turntable (11)
2) moves to the mounting station, and the X-axis motor (2) and the Y-axis motor (3) are rotated to make corrections based on the recognition result of the recognition device (14), so that the XY table (1) becomes XY.
The component (4) sucked by the nozzle (12) is mounted at a position to be mounted on the printed circuit board (5) by moving in the direction.

The above operation is repeated and the components (4) are sequentially picked up from the respective component supply devices (7).

In this way, the tape (18) wound around the reel (not shown) gradually shortens, and finally the end thereof approaches the position of the reflection plate (84). Photo sensor (85)
While the tape (18) is on the reflector (84),
The presence of the tape (18) is detected by the diffuse reflection of the tape (18), but when the tape (18) is sent,
When the end of the tape (18) passes the reflection plate (84) and the photo sensor (85) receives the reflected light from the reflection plate (84), the absence of the tape (18), that is, the material shortage of the component (4) is detected. Then, the operator is notified of that fact.

Next, the operator stops the component mounting operation with an operation key (not shown) and replaces the component mounting device that runs out of material.

That is, after the lock lever (78) is unlocked, the supply device (7) is removed from the supply base (6).

Next, when the operator removes the suppressor pressing piece (51) from the pin (48) and lifts the suppressor (43) against the spring (45), the projecting piece (62) moves the swing lever ( 22) is oscillated counterclockwise to enter the lower side of the suppressor engagement protrusion (63) and the state shown in FIG. 5 is reached, so that the protrusion (63) presses the protrusion (62) so as not to move upward. , Hold this state. In this state, the remaining tape (18) is removed, and the cover tape (19) wound around the reel (54) is removed.

Next, a new tape (18) is mounted on the chute surface (37) and the feed pin (39) is attached to the feed hole (38).
And the end of the cover tape (19) is opened (4
6) via the reel (54) and then the engaging piece (26) of the swing lever (22) is pushed downward as shown in FIG. 6, the suppressor engaging protrusion (63) moves to the right. To escape
The suppressor (43) is lowered by the biasing force of the spring (45) and presses the tape (18). Thereafter, the pressing piece (51) is engaged with the pin (48), and the force of pressing the tape (18) of the suppressor (43) by the spring (50) is increased.

Next, in the same manner as described above, the component supply device (7) is attached to a predetermined position of the supply base (6) by mounting pins (73).
(73) is inserted into the mounting holes (76) (77), and the lock claw (80) is locked to the lock plate (81) by the lock lever (78) to mount the lock plate.

In this embodiment, the incorrect mounting prevention pin (82) is used.
Is provided on the component supply device (7) and a groove (83) for fitting the pin (82) is provided on the supply table (6). Alternatively, a pin that fits in the groove or hole may be provided in a position that fits in the groove or hole only when the feeding device is mounted in the correct position.

The erroneous mounting prevention pin (82) is not limited to the case where the mounting pin (73) for positioning the component supply device (7) is erected from the component supply device (7) as in this embodiment. In this way, even when the pin for positioning the component supply device (7) is erected on the supply base (6) and the supply device (7) is provided with a hole for fitting the pin, the same operation is performed. Helps prevent incorrect mounting.

[0075]

As described above, according to the present invention, the component supply unit floats from the supply base by the length of the erroneous mounting prevention projection when the positioning is not performed at the two positioning positions forming a pair, and the front and rear positioning positions are provided. In both cases, since the positioning protrusion does not fit into the positioning hole, it can be reliably found that the component supply unit is erroneously mounted.

[Brief description of drawings]

FIG. 1 is a plan view of a case where a component supply device is about to be arranged in the wrong direction on a supply table.

FIG. 2 is a side view of the component supply device.

FIG. 3 is a plan view of a component mounting device to which the present invention can be applied.

FIG. 4 is a side view of the component supply device.

FIG. 5 is a side view of the component supply device.

FIG. 6 is a side view of the component supply device.

FIG. 7 is an enlarged plan view of the vicinity of a component suction position of the component supply device.

FIG. 8 is an enlarged side view of the vicinity of the guide wall of the component supply device.

FIG. 9 is a plan view in which a component supply device is arranged on a supply table.

FIG. 10 is a plan view in which the component supply device is arranged on the supply table.

FIG. 11 is a view showing a state in which the stopper pin is eccentric.
It is the side view seen from the opposite direction.

FIG. 12 is a view showing a state where the stopper pin is eccentric.
It is the side view seen from the opposite direction.

FIG. 13 is a side view showing a state in which the shutter lever stopper pin is eccentric as seen from the opposite direction to FIG. 2.

FIG. 14 is a side view showing a state in which the shutter lever stopper pin is eccentric as seen from the opposite direction to FIG.

[Explanation of symbols]

 (4) Chip-shaped electronic component (chip component) (5) Printed circuit board (6) Supply table (7) Component supply device (component supply unit) (12) Suction nozzle (73) Mounting pin (positioning protrusion) (76) Mounting hole (positioning hole) (77) Mounting hole (positioning hole) (82) Wrong mounting prevention pin (wrong mounting prevention protrusion) (83) Groove (wrong mounting prevention hole)

Claims (1)

[Claims] 1. Positioning holes provided in one of the supply base and the component supply unit are fitted with positioning projections provided in the other of the supply base and the component supply unit at two positioning positions before and after forming a pair of the supply base, and the positioning is performed respectively. In the component mounting device in which the supply units are arranged in parallel with each other on the supply base, and the suction nozzle adsorbs the chip components supplied from the supply unit onto the printed circuit board, the respective positioning positions of the supply base are paired. The length at which the positioning protrusion fits into the positioning hole at both the positioning positions forming the pair only when the incorrect mounting prevention hole is fitted to the position corresponding to the A component mounting apparatus, which is provided with a protrusion for preventing erroneous mounting.