JPH05167287A - Component mounting device - Google Patents

Abstract

PURPOSE:To enable a suction nozzle to carry out a series of operations where a component is sucked at once, picked up, and mounted at a high speed by a method wherein a component feed unit is made to finish a component feed operation before the unit moves to a component pickup station. CONSTITUTION:A chip component 4 enveloped in a tape is intermittently fed by the action of a feed lever (swing lever) 92 driven by a drive member (up- down rod) 54. A feed table 6 is made to move toward the position of a unit 7, the unit 7 is stopped at a component pickup station, a chip component 4 fed by the unit 7 is picked up and mounted on a printed board 5 by a suction nozzle 13. The up-down rod 54 provided above the component feed device 7 stopped at a component pickup station by the movement of the feed table 6 is made to drive the tape feed action of the component feed device 7 as it is moved up or down. The up-down rod 54 is made to move up or down so as to drive the tape feed action of the feed device 7 not located at a component 4 pickup station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply base provided with a plurality of component supply units for intermittently feeding and supplying chip components encapsulated in a tape by driving a drive member to operate a feed lever. The present invention relates to a component mounting device that moves in the arrangement direction of a unit, stops the unit at a component pickup position, and picks up a chip component supplied by the unit by a suction nozzle and mounts it on a printed circuit board.

[0002]

2. Description of the Related Art A component mounting device of this type is disclosed in Japanese Patent Laid-Open No. 62-26.
It is disclosed in Japanese Patent Publication No. 9400. According to the technique disclosed in this publication, the drive unit that drives the pitch variable lever, which is the feed lever, drives the pitch variable lever of the component supply unit at the component suction position. Conventionally, the supply base on which the component supply unit is arranged is stopped and only the variable pitch lever of the component supply unit at the component suction position is driven.

[0003]

However, in the above-mentioned prior art, since the chip component supplied after the tape feeding of the component supply unit at the component suction position is sucked, the suction nozzle is not operated during the tape feeding. It was not suitable for high-speed mounting because it could not pick up parts.

Therefore, the present invention aims to eliminate the above drawbacks.

[0005]

Therefore, according to the present invention, a plurality of component supply units are provided for intermittently feeding and supplying the chip components encapsulated in the tape by the operation of the feed lever by the drive of the drive member. In a component mounting apparatus for moving a supply table in the arrangement direction of the unit to stop the unit at a component pickup position and picking up a chip component supplied by the unit by a suction nozzle and mounting the chip component on a printed circuit board, the drive member is a component. A moving means for moving the feed lever of the component supply unit which is not in the take-out position so as to be engageable with the feed lever is provided.

[0006]

The moving means moves the drive member on the component supply unit for supplying the component in accordance with the size of the unit in the juxtaposed direction, and the unit feeds the unit before stopping at the component take-out position by the movement of the supply base. Drive the lever and send the chip parts.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.
2 and 3, (1) is an X-axis motor (2) and Y
An XY table that moves in the XY directions by rotation of the shaft motor (3), on which a printed circuit board (5) to which a chip-shaped electronic component (4) (hereinafter referred to as a chip component or component) is mounted is placed. (6) is a supply table, and a large number of component supply devices (7) for supplying the chip components (4) are arranged. Reference numeral (8) is a supply base driving motor, and the ball screw (9) is rotated by rotating the ball screw (9).
Through the nuts (10) fitted to and fixed to the supply base (6), the supply base (6) is guided and moved by the linear guide (11). Reference numeral (12) is a turntable that rotates intermittently, and the suction nozzle (1
The mounting heads (14) having four 3) are arranged at equal intervals according to the intermittent pitch.

The suction nozzle (13) sucks the component (4) from the supply device (7) and picks up and removes the component (4) from the mounting head (14) at the suction station. Adsorb 4).

The position at which the mounting head (14) next stops is a recognition station, and the component recognition device (15) at this station recognizes the positional deviation of the component (4) that is picked up by the suction nozzle (13). ..

The next mounting head (1
The stop position of 4) is the angle correction station, and the suction nozzle (1) is detected based on the recognition result by the recognition device (15).
3) is rotated in the θ direction by the nozzle rotation roller (16), 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 (13) of the station is mounted on the board (5).

In FIGS. 1 and 4, reference numeral (18) is a supporting base, and a swing lever (20) is rotatably mounted around a lever support shaft (19) mounted on the supporting base (18). Has been. The lever (20) has a support (1
A cam follower (23) engaging with the lower end of a cam (22) fixedly supported by a cam support shaft (21) rotatably provided in 8) is attached. (24) is a solenoid that pulls in the plunger that is excited, and swings the locking lever (25) around the support shaft (27) against the spring (26). A locking bolt (28) is attached to the right end of the swing lever (20) in FIG.
When the lever (25) is swung clockwise by the biasing force of the spring (26) due to the demagnetization of (4), the lever (2)
5) is locked to the bolt (28) and the swing lever (20)
Restricts the rocking of the. An elevating rod (29) is rotatably supported at the left end of the swing lever (20), and an elevating plate (31) that is vertically movable by being guided by a linear guide (30) at the lower end of the rod (29). ) Is attached.

Reference numeral (32) is a rocking lever for pivotally supporting the lifting rod (33), which is pivotally supported by the lever support shaft (19) and is pivotally supported by the cam support shaft (21) in the same manner as the lever (20). A cam follower (not shown) can be engaged with a cam (not shown) on the opposite side of the supported cam (22), and a lever (32) locking mechanism having a mechanism similar to the solenoid (24) by a solenoid (not shown) is provided. ing.

Reference numeral (34) is a rocking lever for rotatably pivoting an elevating rod (35), which is pivotally supported by a lever support shaft (19) and, like the lever (20), a cam support shaft ( Two
A cam follower (not shown) can be engaged with a cam (not shown) on the opposite side of the cam (22) fixed to 1), and a locking mechanism for the lever (32) by a mechanism similar to the solenoid (24) by a solenoid (not shown) is provided. , Provided.

A mounting plate (36) is fixed to the lower portion of the support base (18), and the linear guide (30) is mounted on the mounting plate (36). The mounting plate (36) is provided with a lifting rod mounting block (38) having a built-in ball spline so as to project from the lifting rod (3).
3) The lower part of the spline shaft (3
9) penetrates. Further, a linear guide (40) is attached to the attachment plate (36), and the lifting rod (3
The vertical movement of the lift plate (41) fixed to the lower end of 5) is guided.

Respective rising pieces (42) (43) are formed at the lower ends of the lifting plates (31) (41), and rollers (46) provided at the upper ends of the spline shafts (44) (45). ) (47) rises and pieces (42) (4
By riding 3), the shafts (44) (45) are supported.

Reference numerals (48) and (49) denote lifting rod blocks provided on the moving body (50) so that the spline shaft (44) can move up and down a ball spline (not shown) incorporated in the block (48). Pierce, block (4
The spline shaft (45) penetrates the ball spline (51) built in 9) so as to be vertically movable.

Spline shaft (39) (44) (4
At the lower part of 5), husband and wife lifting rods (52) (53) (54) are attached, and spline shafts (39) (4
4) (45) is provided with a pair of anti-rotation protrusions (55), so that the elevating rods (52) (53) (54) are prevented from rotating in a horizontal plane. In addition, the shaft (3
9) (44) (45) spring locking portion (5)
6) Between the (57) and (58) and the husband of the block (48), the block (38) and the block (49), the spring (5)
9) is provided so as to be wound around each shaft, and the shafts (39), (44) and (45) are biased downward, so that the rocking levers (20), (32) and (34) are respectively reversed. The cam follower (2
3) and the cam followers (not shown) provided on the swing levers (32) and (34) are adapted to engage with the husband and cam (22) and the cam (not shown).

Reference numeral (62) is a motor supported by a column (63) provided on the mounting plate (36), and a nut (65) fitted to the ball screw (64) by rotating the ball screw (64) is provided. The moving body (50) to which the nut (65) is fixed moves in the left-right direction of FIG. 1 and is moved in the left-right direction of FIG. 1 by being guided by the linear guide (66). A recess (67) is formed in the block (38) so that the moving body (50) can move.

By moving the moving body (50), the shaft (4
4) and (45) move while the rollers (46) and (47) roll up on the rising pieces (42) and (43), so that the lifting rods (53) and (54) move in the left-right direction in FIG. The rollers (46) (47) are movable so as to be movable between the position shown in FIG. 1 and the position shown by the broken line in FIG.
The rotation range and the lateral length of the rising pieces (42) (43) are selected. When the rollers (46) (47) are in the position of the broken line, the lifting rods (53) (54) are in the position of the chain double-dashed line in FIG.

The elevating rod (52) is attached to a position where the component (4) is sucked and is located above the component supply device (7) stopped by the movement of the supply base (6), and is installed as described above. By raising and lowering with such a configuration, a tape feeding operation, which will be described later, which is a component supplying operation of the device (7) is driven. The lifting rods (53) (54) have parts (4) on both sides thereof.
Is moved up and down to drive the tape feeding operation of the feeding device (7) which is not in the position where the is sucked.

Next, a mechanism for moving the mounting head (14) up and down at the suction station will be described.

In FIGS. 3 and 4, reference numeral (70) denotes a head lifting rod, which is similar to the lifting mechanism composed of a swing lever (20), a cam (22) and the like in the case of the lifting rod (29). A mechanism that does not work is attached to the upper part so that it can move up and down. A head elevating plate (71) is attached to the rod (70), and is guided by a linear guide (72) attached to the support base (18) to move up and down by the vertical movement of the rod (70). A descending block (73) having a U-shaped cross section is attached to the lower part of the elevating plate (71), and ascends and descends with the elevating plate (71).

Reference numeral (74) denotes a head elevating shaft having a mounting head (14) attached to a lower portion thereof. Two mounting heads (14) are provided inside and outside the turntable (12) for each mounting head (14).
The table (12) is movably attached at a place so as to be vertically movable. The shaft (74) is fixed to a roller mounting body (75), and an upper cam follower (76) and a lower cam follower (7) are mounted on the mounting body (75).
7) is attached.

The mounting structure of the lower cam follower (77) will be described with reference to FIGS. 19 and 20.

Reference numeral (142) is a swinging piece for rotatably supporting the lower cam follower (77), and the mounting body (7) is provided around a support shaft (143) provided in the mounting body (75).
5) The rocking piece concave portion (144) can be rocked. The lower part of the swinging piece (142) is attached to the mounting body (7
5) It is biased upward by a spring (145) attached inside.

Reference numeral (78) is a cylindrical cam fixed to the support table (18) around the rotation shaft of the turntable (12) below the support table (18), and is an upper cam follower (76). Rides on the upper surface of the cam (78) and suspends and supports the mounting body (75), that is, the mounting head (14), and the lower cam follower (77) controls the cylindrical cam (7).
The lower surface of 8) is pressed by the urging force of the spring (145). The cylindrical cam (78) is sandwiched between the upper cam follower (76) and the lower cam follower (77).

By intermittently rotating the turntable (12), the cam followers (76) (77) rotate while rolling along the cylindrical cam (78). In this way, the mounting head (14) is pivotally moved up and down along the cylindrical cam (78) while being supported by the cam follower (76). At the suction station, the cylindrical cam (78) is cut out, and the cam followers (76) (77) transfer to the descending block (73) as shown in FIG. Spring (1
45) causes the lower cam follower (77) to move the cylindrical cam (7).
8) is pressed in order to absorb vibrations and shocks due to variations in the dimensions of the cylindrical cam (78).

When the rod (70) is lowered, the block (7
When 3) descends, the cam follower (77) presses the block (73) by the urging force of the spring (145), so that the mounting body (75) and the shaft (7) are forced.
4) and the mounting head (14) are adapted to descend. When the block (73) rises due to the rotation of a cam (not shown), the mounting head (14) rises.

A mechanism similar to the solenoid (24), the locking lever (25) and the like can restrict the lifting rod (70) from moving up and down.

Next, a mechanism for driving the opening and closing of the shutter, which will be described later, will be described.

In FIGS. 3 and 5, reference numeral (80) is a shutter drive lever for driving the opening and closing of a shutter (126) which will be described later, and a swing support shaft is attached to a mounting member (1A) fixed to the support base (18). One end of a rocking lever (83) pivotally supported by the fulcrum (82) is fitted into the fitting recess (81), and reciprocates by the rocking of the lever (83). The other end of the swing lever (83) is provided with a shutter drive lifting rod (84).
Is attached and a tension spring (85) having the other end attached to the attachment member (18A) is attached. To the other end of the rod (84), one end of a swing lever (87) which is pivotally supported by a support shaft (86) by a support base (18) is pivotally supported, and the other end of the lever (87) is connected to a spring ( It is pressed against the cam (88) by the biasing force of 85). Therefore, the lift rod (84) is lifted and lowered by the rotation of the cam (88), and the drive lever (8) is rotated by the rotation of the lever (83).
0) reciprocates.

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

6 to 12, reference numeral (90) is a tape for enclosing the chip parts (4) at a constant interval, and the cover tape (91) is provided so as to prevent the chip parts (4) from protruding.
Is attached from above.

The supply device (7) intermittently feeds the tape (90) in accordance with the interval of the enclosed component (4) and supplies the component (4) to the suction position of the suction nozzle (13). is there.

Reference numeral (92) is a rocking lever pivotally supported by a supporting shaft (25) on a cassette side wall (94) extending upward from the cassette body (93). ) Or the up-and-down rods (53) and (54) come into contact with the engaging pieces (96) formed on the lever (92) and press them downward to swing from the position of FIG. 6 to the position of FIG. When the elevating rods (52) (53) (54) rise, the stopper pin (98) is urged by the urging force of the tension spring (97) stretched between the engaging piece (96) and the cassette side wall (94). It swings to the position shown in FIG. 6 and FIG.

A transmission lever (100) is rotatably pivoted at the lower end of the swing lever (92), and a feed lever (10) pivotally supported at the other end of the lever (100).
The movement of the swing lever (92) is transmitted to 1). The feed lever (101) is swingably attached to the cassette body (93) about a feed lever shaft (102) as a fulcrum.
When the swing lever (92) swings counterclockwise, the swing lever (92) swings counterclockwise and is pivotally supported at one end thereof.
3) a feed gear (10
4) Engage with and rotate in the counterclockwise direction in FIGS. 6 and 9 by a predetermined angle. The feed gear (104) has a sprocket (10
5) is integrally attached, and the cassette body (93)
A sprocket (not shown) is provided in a feed hole (not shown) of a tape (90) which is placed on a flat chute surface (106) formed above and is extended from a reel cassette (107) (see FIGS. 3 and 4). The feed pin (108), which is planted at regular intervals on the outer periphery of the feed gear (105), is fitted to the feed gear (10).
4) The tape (90) is rotated by a predetermined pitch, as shown in FIG.
Of the leading part (4) sent to the left side (right side of FIG. 3) of the tape (90) and placed in the part suction position (T) immediately before the part where the feed pin (108) is fitted. To position. (109) is a feed gear (104) and a spring (110)
It is a reverse rotation preventing claw that is fitted by the urging force of to prevent the gear (104) from rotating in the clockwise direction.

6 to 12, reference numeral (111) is a suppressor pivotally supported by the support shaft (112) on the cassette side wall (94), and the tape (90) fed on the chute surface (106) is a spring (113). ) To prevent the tape (90) from rising up, and at the front (right side in FIG. 6) of the suction position (T) of the component (4), cover tape (91) from the tape (90). ) Is peeled off.

Further, an opening (115) is formed around the suction position (T) of the suppressor (111) for taking out the component (4) and the sprocket (104) is projected, and the suction position (T) is also formed. A slit (116) is formed on the rear side in the feeding direction of.

The cover tape (91) peeled off from the tape (90) is attached to the side wall (94) by the reel support shaft (118).
A cover tape reel (119) pivotally supported by the reel is wound from the lower side of the reel (119).

A mechanism for winding the reel (119) will be described.

A ratchet lever (120) is rotatably supported on the reel support shaft (118), and a roller (121) is rotatably supported at the end of the ratchet lever (120) to support the lever (12).
0) and the swing lever (92), the roller (121) is pressed by the swing lever (92) by the urging force of a tension spring (122). A ratchet pawl (124) capable of meshing with a ratchet gear (123) integrally formed with the reel (119) is pivotally supported on the ratchet lever (120), and the swing lever (92) is supported. ) Swings in the counterclockwise direction due to the lowering of the lift bar (52), the reel (119) rotates in the counterclockwise direction due to the swing of the ratchet lever (120), and the cover tape (9
Take up 1). (125) is a reverse rotation preventing claw that meshes with the ratchet gear (123) to prevent the reverse rotation of the reel (119).

6 to 12, reference numeral (126) is a shutter slidably attached to the suppressor (111), and the shutter spindle (12) is attached to the cassette body (93).
The shutter lever (128) pivotally supported around (7) swings to reciprocally slide on the tape (90) in the tape feeding direction. The shutter lever (128) swings due to the reciprocating movement of the shutter drive lever (67) engaging below and the biasing force of the spring (130),
When the tape (90) is fed and the supply table (6) is moving, etc., as shown in FIGS. 6, 11 and 12, the shutter (126) is covered and the upper cover tape (91) is wound up. Just above the part (4) of the shutter (12)
6) to prevent the component (4) from being pushed out by the retainer piece (129) (see FIGS. 10 to 12) formed by bending,
The lever (67) is pulled to the left side of FIG. 6 only when the nozzle (13) is lowered to suck the component (4).
A shutter (126) or holding piece (1
29) moves in the slit (116) to open the upper surface of the component (4) at the suction position (T).

Reference numeral (131) is a shutter lever stopper which is locked to the shutter lever (128) which is swung by the urging force of the spring (130), and the shutter (126) holds the component (4) at the component suction position (T). The shutter (126) is positioned when it is in the covering position.

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. 6 and 13.

Numeral (133) is a mounting pin attached to the front and rear of the lower portion of the cassette body (93) of the feeding device (7) one by one.
4) Mounting holes (136) (13) formed in (135)
By fitting with 7), the supply device (7) is positioned. Reference numeral (138) is a lock lever pivotally supported by a support shaft (139), and a lock claw (140) at the tip of the lever (138) is engaged with a lock plate (141) provided on the supply base (6). Then, the supply device (7) is attached to the supply base (6). Mounting holes (136) (137)
Are provided in the moving direction of the husband and supplier supply table (6) at intervals of "A / 2" as shown in FIG.

There are several kinds of widths in the arrangement direction of the component supply device (7) on the supply base (6), but the supply devices (7) having the same width.
Is the narrowest one that is arranged every other mounting holes (136) and (137), that is, that is arranged with almost no gap at intervals of “A”. The next largest one is the mounting hole (13
6) Every two of (137), that is, at intervals of "3A / 2", they are arranged with almost no space. As shown in FIG. 13, these two kinds of width supply devices (7) can be arranged without any gap in any arrangement. Therefore, the positions of the engaging pieces (96) of the rocking lever (92) are also arranged at intervals of "A" or "3A / 2". Alternatively, it may be arranged at intervals other than an integral multiple of "A".

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. When only 16.5 mm supply devices (7) are lined up on the supply table (6) without any gap, the lifting rod (5
2) is located on a certain supply device (7), the moving body (50) moves so that the lifting rod (53) is below the lifting rod (52) at the position indicated by the chain double-dashed line in FIG. 2 above the feeder (7) on the right side of the feeder (7). Further, due to the movement of the moving body (50), the lift bar (54) is located at the position indicated by the two-dot chain line in FIG. 1 and is two supply devices (7) left of the supply device (7) below the lift bar (52). Above.

FIG. 14 shows a timing chart of the operation by the rotation of each cam. 0 °, 180 ° and 360 ° are the rotation of the cam (22) and the cam by the rotation of the cam support shaft (21). It indicates the amount of rotation such as (88), and returns to 0 degree at 360 degrees, and the same operation is repeated. According to this, as shown by the "index rotation", the turntable (12) moves between the mounting head (1
4) moves from one station to the next station, during which the supply base (6) is moved as indicated by "movement of parts supply section", and the moving body (50) is also moved. The turntable (12), the supply table (6) and the moving body (50) are always stopped between 180 degrees and 360 degrees. The shutter drive lever (80) is in the state shown in FIG. 6 during the rotation of the cam (88) from 0 ° to 180 ° as shown by “shutter”, and between 180 ° and 360 ° as shown in FIG. To the left (rightward in FIG. 5) to open the shutter (126), and then to the right in FIG. 6 to return to the closed state.

As shown by the "chip pickup", the mounting head (14) keeps rising from 0 to 180 degrees moving to the suction station, descends after reaching the suction station, and rises after picking up parts. Come back. It can be seen from FIG. 14 that the vertical movement of the head (14) is performed while the shutter (126) is open.

"Tape feed A" is the lifting rod (53) (5
4) Vertical movement, which is in a raised state between 0 ° and 180 °, and is lowered between 180 ° and 360 ° to push down the swing lever (92) to perform the tape feeding operation and then rise. To do. "Tape feed B" indicates the vertical movement of the lifting bar (52), which moves vertically between 0 and 180 degrees,
It keeps rising from 0 to 360 degrees. Lift bar (5
When moving up and down in 2), the supply table (6) is not moved.

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 mounts the component supply device (7) on the supply base (6) with the mounting pin (133). 136) and the mounting hole (137), and the lock claw (140) is engaged with the lock plate (141) using the lock lever (138). The supply device (7) is arranged on the supply table (6) at an interval of "A" or an interval of "3A / 2" depending on the width dimension, and a part of the arrangement is shown in FIG.
It is lined up so that there is no gap like.

In this way, when the supply device (7) is arranged on the supply base (6), the suction nozzle (13) sucks the component (4) from the supply device (7) and the printed circuit board is obtained. The operation of attaching to (5) is performed, and this operation will be described.

Next, when an operation section (not shown) is operated to start the automatic operation, the motor (3) is rotated and the desired component (4) is supplied through the ball screw (9) and the nut (10). The supply table (6) is guided and moved by the linear guide (11) so as to move the supply device (7) to the suction position of the suction nozzle (13) waiting in the suction station.

During this movement, the shutter lever (128)
A state in which the shutter (126) is biased to rotate counterclockwise in FIG. 6 around the shutter support shaft (127) by the spring (130), and the shutter (126) is moved in the tape feeding direction as shown in FIG. And the cover tape (9
The pressing piece (129) covers the part (4) enclosed in the tape (90) in a state where the part (1) is peeled off and prevents the part (4) from jumping out even during movement.

When the supply device (7) stops at the position shown in FIG. 15, a solenoid (not shown) is excited to swing the lever (3).
The counterclockwise restriction of FIG. 1 of 2) is released, and 0 of FIG.
The rotation of the cam (not shown) caused by the rotation of the cam support shaft (21) causes the swing lever (32) to swing counterclockwise in FIG. The spline shaft (39) is lowered by the urging force of the spring (9), and the lift bar (52) is lowered to move the swing lever (9).
It contacts the engaging piece (96) of 2) and pushes it down as shown in FIG. The swing lever (92) swings counterclockwise from the state of FIG. 6 to the state of FIG. 7, and the feed lever (101) swings counterclockwise via the transmission lever (100) to feed the pawl. (103) rotates the feed gear (104) to rotate the sprocket (105). The rotation of the sprocket (105) causes the feed pin (108) to feed the tape (90) at a predetermined pitch. Further, during the feeding operation of the tape (90), the suppressor (111) holds the tape (90) so that it does not float upward.

On the other hand, when the swing lever (92) swings counterclockwise, the ratchet lever (120) swings counterclockwise via the tension spring (122), and the ratchet pawl (124) moves to the ratchet. The cover tape reel (119) meshing with the gear (123) is rotated counterclockwise by a predetermined angle. The suppressor (11) is rotated by the rotation of the reel (119).
The cover tape (91) is wound around the reel (119) while being peeled off from the tape (90) at the position of the opening (114) of 1). At this time, the cover tape (9
As shown in FIG. 11, the suppressor (111) and the pressing piece (129) of the shutter (126) cover the upper part of the component (4) from which the chip component (1) has been peeled off so that the chip component (4) does not fly out. There is. Further, a solenoid (24) and a swing lever (34) (not shown) for swinging regulation extend to a solenoid (not shown), and a spring (not shown) urges the locking lever clockwise, so that the lever (20) and the lever (34) move. Swing is still restricted.

Next, when the elevating rod (52) moves upward, the swing lever (92) returns to the clockwise direction by the urging force of the tension spring (97), the feeding operation of the tape (90) and the cover tape (91). The peeling operation is stopped, and the chip component (4) to be sucked next is positioned at the component suction position (T) by the suction nozzle (13).

From 0 degrees to 180 in this timing chart
In between, the rotation of the turntable (12) causes the mounting head (14) to take out the component (4) next to the suction station, and the cam follower (76) and the cam follower (77) grip the cylindrical cam (78). While the cam (7
8) by moving along the cam follower (7
6) It is supported by (77) and moves to stop. When this movement is stopped, the cam followers (76) (77) are transferred to the descending block (73). Vibrations and shocks due to dimensional error of the cylindrical cam (78) and transfer during this movement are absorbed by the spring (145) pressing the cam follower (77). Also, this lifting bar (52)
The supply table (6) is not moved during the period from 0 degree to 180 degrees when is lowered. Next, the rotation of the cam (88) between 180 degrees and 360 degrees in the timing chart resists the biasing force of the spring (85) via the swing lever (87) and the rod (84), and the lever (83). 5) rotates counterclockwise in FIG. 5 and the lever is engaged, so the lever (80) moves to the right in FIG. 5 and the shutter lever (128) is pulled. By swinging the shutter lever (128) clockwise in FIG. 5 (clockwise in FIG. 9), the shutter (12
6) moves to the right side in FIG. 9, and the pressing piece (129) moves to the right side in FIG. 9 along the slit (116). Thus, the upper side of the chip component (4) at the component suction position (T) is shown in FIG.
1 and the state shown in FIG. 12 is released as shown in FIG.

Next, as shown in FIG. 14, the lifting rod (70) is lowered by the rotation of a cam (not shown), and the lifting plate (71) is lowered along the guide (72) to block (73). ) Descends. Then came follower (77)
Is pressed, the roller mounting body (75) descends, the shaft (74) descends in the turntable (12), the mounting head (14) descends, and the suction nozzle (13) sucks the component (4).

Next, as shown in FIG. 14, the elevating rod (70) ascends and the nozzle (13) that has adsorbed the component (4).
Moves up to the position shown in FIG. The spring (1
45) Cam follower (77) blocks (73)
The lower surface of is always pressed with the same pressing force.

When the component suction operation of the suction nozzle (13) is completed, the shutter drive lever (80) returns to the right side of FIG. 6, and the shutter lever (128) swings counterclockwise by the urging force of the spring (130). Moving and shutters (126)
Returns to the left in FIG. 6 and covers the component suction position (T).

Thus, the operation from 180 degrees to 360 degrees in FIG. 14 is completed.

Next, the operation from 0 ° in FIG. 14 is started again, the turntable (12) intermittently rotates up to 180 °, and the next nozzle (13) moves to the suction station. Since the supply device (7) for supplying the component (4) to be taken out next is the same as the present, the motor (8) does not rotate and the supply device (7) does not move. Then, in the same manner as described above, the tape feeding operation of the supply device (7) is performed between 0 degrees and 180 degrees of the timing chart.

At this time, when the rocking lever (32) is fully rotated clockwise, a solenoid (not shown) for restricting the rocking of the rocking lever (32) is actuated and a locking lever (not shown) locks a locking bolt (not shown). To engage the rocking lever (32)
The counterclockwise swinging of the is restricted. Further, the solenoid that restricts the swing of the swing lever (34) is actuated, and the locking lever (not shown) rotates counterclockwise to release the regulation of the lever (34).

Next, in the same manner as described above, 180 degrees to 36 degrees.
The opening / closing operation of the shutter (126) and the component suction operation during the open state of the shutter are performed between 0 degrees, and during this period, the component (4) to be taken out next is the supply device (7).
The rocking lever (34) is rotated by the rotation of a cam (not shown) for feeding the tape of the feeding device (7) at the position "B" of 5.
Rotates, the rod (35) descends, and the lift plate (41) is guided by the linear guide (40) and descends. Then, the spline shaft (45) is lowered by the urging force of the spring (59), the lifting rod (54) is lowered, and the engaging piece (96) is pressed as shown in FIG. The tape feeding operation of 7) is performed. After this, the lifting bar (54) rises.

Next, during the next timing of 0 ° to 180 °, as shown in "Movement of parts supply section" in FIG. The shutter (126) of 7) moves with the closed state, and the supply device (7) of “B” moves below the lifting rod (52). During this time, by the rotation of the motor (62), the moving body (50) is guided and moved by the linear guide (66) via the ball screw (64) and the nut (65), and the roller (47) rises up (43). Rolling up causes the spline shaft (45) and the elevating rod (54) to move to the left, resulting in the state shown in FIG.

Next, during the timing of 180 to 360 degrees, the supply device (7) at the position of "B" is operated in the same manner as described above.
The opening / closing operation of the shutter (126) and the suction operation of the component (4) by lowering the head (14) are performed, and at the same time, the swing lever (34) and the rod (35) by the rotation of the cam support shaft (21). ), Etc., for "tape feed A" in FIG.
As shown in FIG. 17, the elevating rod (54) is lowered, and the tape feeding operation of the feeding device (7) at the position "C" is performed as shown in FIG.

Next, during the next timing of 0 ° to 180 °, the supply table (6) moves so that the elevating rod (52) is located at the position of “C”, and the part (4 )
Since the supply device (7) of No. 2 is of wide "D", the rotation of the motor (62) causes the moving body (50) to move rightward in FIG. 1 by a distance of "A / 2". The lifting bar (54) is stopped at a position where it can be engaged with the engagement piece (96) of the supply device (7).

Next, the shutter (126) is opened / closed, the head (14) is lowered, and the component (4) is adsorbed during the timing of 180 to 360 degrees, and as shown in FIG. The elevating rod (54) descends to perform the feeding operation of the "D" supply device (7).

Next, by moving the supply table (6), the "D" supply device (7) is moved below the lifting bar (52), and the component (4) suction operation similar to that described above is performed. If the supply device (7) for supplying the component (4) to be taken out next is within the moving range of the lifting rods (53) (54), the tape feeding operation is performed. For example, "C" is next to "D"
In that case, after the swing lever (34) is restricted from rotating by a locking lever (not shown), the solenoid (24) is excited and the locking lever (25) resists the spring (26) to support the shaft ( 27)
It rotates counterclockwise around to disengage from the locking bolt (28), the rotation of the swing lever (20) is released, and the cam (22) rotates to rotate the rod (29) and the lifting plate ( 31)
And the lifting rod (5) through the spline shaft (44).
3) descends and presses the engaging piece (96) to feed the tape.

By repeating the above operation, the suction operation of the chip component (4) is continued.

On the other hand, when the suction nozzle (13) sucks the component (4) and the head (14) rises to return to the state of FIG. 4, the turntable (12) intermittently rotates and the cam follower (76). (77) moves to the cylindrical cam (78), and the nozzle (13) that has adsorbed the component (4) moves to the recognition station.

Then, at the station, the nozzle (1
The component (4) attracted by 3) is the component recognition device (15).
Be recognized by.

The nozzle (13) stopped at the recognition station by the intermittent rotation of the next turntable (12) moves to the angle correction station, and the nozzle rotation roller (1
6) the positional deviation of the rotation angle of the component (4) in the θ direction is corrected based on the recognition result of the recognition device (15).

The nozzle (1) that has been stopped at the angle correction station due to the intermittent rotation of the next turntable (12)
3) moves to the mounting station, and the X-axis motor (2) and the Y-axis motor (3) are rotated to make a correction based on the recognition result of the recognition device (15), so that the XY table (1) becomes XY.
The component (4) sucked by the nozzle (13) is mounted at the position where the printed circuit board (5) should be mounted by moving in the direction.

While the component (4) is sucked at the suction station and moved to the mounting station, the cam follower (7
7) presses the lower surface of the cam (78) by the spring (145), absorbs vibration and shock during movement, and moves the component (4).
Are not displaced or dropped with respect to the nozzle (13). Further, although the cylindrical cam (78) moves up and down, the pressing force of the cam follower (77) by the spring (145) is always constant so that vibration and shock can be absorbed uniformly.

The above operation is repeated and the component supply device (7) sequentially picks up the component (4) and mounts it on the printed circuit board (5).

In the present embodiment, the moving range of the moving body (50) is the distance "A", but it may be longer than this.

Further, in this embodiment, the lifting rods (53) (5
4) Both moved together with the moving body (50), but both lifting rods should be provided so as to be vertically movable on the moving body which independently moves in the moving direction of the supply table (6) by independent driving sources such as ball screws. Then, the feeding devices (7) on both sides may be allowed to feed the tape at the same time when they are within the moving range,
The number of lifting rods (53) (54) is two, but not limited to this
It is also possible to provide more than a book.

Further, the elevating rod (52) may not be provided and only the elevating rod movable in the moving direction of the supply table (6) may be provided. If it is possible to move at high speed, one elevating rod is provided. Alternatively, the tape feeding operation may be performed for the feeding device (7) at the suction position (T) and the feeding device (7) at other positions.

Furthermore, in this embodiment, the lifting rod (53) is used.
The lowering of (54), that is, the tape feeding operation performed first is performed while the supply base (6) is stopped (from 180 degrees to 36 degrees in FIG. 14).
However, the movement of the feeding device (7) that feeds the tape while the feeding table (6) is moving is performed by changing the curve of the cam or providing an independent drive source regardless of the cam. Alternatively, the lifting and lowering rods (53, 54) may be moved.

In the case of this embodiment, the lifting rods (53) (5)
4) was lowered to perform tape feeding of the feeding device (7) from which the component (4) is taken out next, but not only the feeding device (7) from which the component (4) is taken out next, When the feeding device (7) from which the component (4) is taken out next or after is within the movement range of the lifting rods (53) (54), the lifting rods (53) (54) are simultaneously lowered to feed the tape. You may let me do it. In particular, in the case where the feeding device (7) from which the component (4) is taken out next is in a position where the tape cannot be fed when the component is taken out from the feeding device (7) from which the component (4) is taken out next. Should send both at the same time.

Furthermore, in this embodiment, the feeding device (7)
The case where the rocking lever (92) is pressed and rocked by the vertically moving lifting bar to feed the tape is described above.
The tape feeding is performed by pulling the tape feeding lever of the feeding device (7), or the tape feeding is performed by pushing or pulling the lever in the tape feeding direction at the lower side of the feeding device (7). However, a drive lever for driving the lever of the supply device (7) may be provided in advance so that the tape can be fed as in the present embodiment.

[0086]

As described above, according to the present invention, since the component feeding of the component supply unit is completed before the unit is moved to the component take-out position, the suction nozzle can immediately suck the component, and at high speed. Chip parts can be taken out and mounted. However, the driving member, which is a driving source for feeding the component, can be moved by the moving means in accordance with the size of the component supply unit in the juxtaposed direction, which is extremely applicable.

[Brief description of drawings]

FIG. 1 is a front view showing a lifting mechanism and a moving mechanism of a lifting bar.

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

FIG. 3 is a side view of the component mounting apparatus to which the present invention is applied, including the cross section taken along the arrow in FIG.

FIG. 4 is a cross-sectional view taken along the arrow in FIG. 1 showing a lifting mechanism and a moving mechanism of a lifting rod.

FIG. 5 is a side view showing the movement of the shutter drive mechanism.

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

FIG. 7 is a side view of the component supply device.

FIG. 8 is a side view of the component supply device.

FIG. 9 is a side view of the component supply device.

FIG. 10 is a view showing the upper surface of the suppressor.

FIG. 11 is a view showing the upper surface of the suppressor.

FIG. 12 is a side view near the shutter of the component supply device.

FIG. 13 is a plan view in which the component supply device is arranged on the supply table.

FIG. 14 is a diagram showing a timing chart.

FIG. 15 is a front view showing the lifting operation of the lifting bar.

FIG. 16 is a front view showing the lifting operation of the lifting bar.

FIG. 17 is a front view showing the lifting operation of the lifting bar.

FIG. 18 is a front view showing the lifting operation of the lifting bar.

FIG. 19 is a side view showing a state where a cam follower sandwiches a cylindrical cam.

20 is a cross-sectional view taken along the arrow in 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) (13) Adsorption nozzle (50) Moving body (moving means) (53) Lifting Rod (driving member) (54) Lifting rod (driving member) (62) Motor (moving means) (64) Ball screw (moving means) (65) Nut (moving means) (90) Tape (92) Swing lever (feed) lever)

Claims (1)

[Claims] 1. A supply base in which a plurality of component supply units are arranged for intermittently feeding and supplying chip components encapsulated in a tape by the operation of a feed lever driven by a driving member, in a mounting direction of the unit. In a component mounting device that moves to stop the unit at a component extraction position and picks up a chip component supplied by the unit by a suction nozzle and mounts it on a printed circuit board, the driving member is fed to the component supply unit not at the component extraction position. A component mounting apparatus comprising a moving means for moving the lever so that the lever can be engaged.