JPH06216575A - Parts feeder - Google Patents

Abstract

PURPOSE:To allow an operator to simply perform operations of arranging chip parts in a chute. CONSTITUTION:When a parts feeder 7 is dismantled from a feed stand and an air gun is pressed to a forced air feed opening 129 so as to intermittently blow out compressed air, the compressed air is blown out from a chamber compressed air feeding hole and a chute compressed air feeding hole through an air forced feed path 127 and chute compressed air feed hole through an air forced feed path so that chip parts inside a chamber 76 enter the chute 77 for being arranged inside the chute 77.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction nozzle which is detachably mounted on a supply table and which is introduced from a component storage chamber and is arranged in a chute by separating chip parts from an outlet of the chute by a separating means. The present invention relates to a component supply device that supplies a position.

[0002]

2. Description of the Related Art This type of component supply device is disclosed in the specification of Japanese Patent Application No. 4-70990 filed by the present applicant. In the technique disclosed in the specification, a compressed air supply hole for introducing a chip component into the chute from the component storage chamber and a compressed air supply hole for conveying the chip components aligned in the chute to the chute outlet side are provided. Compressed air from a compressed air source outside the component supply device is intermittently supplied to the supply hole by a valve that opens and closes intermittently.

[0003]

However, in the above prior art, when the chip parts are not aligned in the chute, which is the first state, when the chip parts are aligned in the chute, It must be opened and closed by swinging the swing arm, and it is troublesome to manually move the arm when the component supply device is attached to the supply base, and when attached, the chip component is placed in the chute. It is difficult to check whether or not the parts are aligned because it is difficult for the adjacent component supply device to interfere, and when the component supply device is removed, it is attempted to supply compressed air to the component supply device using an air gun or the like.
It was very troublesome to swing the swing arm to open the valve and then open and close the air gun at the same time.

Therefore, an object of the present invention is to facilitate the work of aligning chip parts in a chute.

[0005]

Therefore, according to the present invention, the chip parts which are removably mounted on the supply table and which are guided from the component storage chamber and aligned in the chute are separated from the outlet of the chute by the separating means. In the component supply device that supplies to the suction position of the suction nozzle, in order to stir the chip components stored in the component storage chamber and guide them into the chute or to convey the chip components aligned in the chute to the chute outlet side A first air supply path that intermittently opens and closes an on-off valve provided in the compressed air source from a compressed air source outside the component supply device, and the on-off valve separately from the first air supply path. Compressed air is used to agitate the chip components stored in the component storage chamber without passing through them and guide them into the chute, or to convey the chip components aligned in the chute to the chute outlet side. Is provided with a second air supply passage can be fed.

[0006]

When the component supply device is detached from the supply base and compressed air is intermittently supplied from the second air supply passage by the air gun, the chip components in the component storage chamber are aligned in the chute.

[0007]

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

2 and 3, (1) is an XY table which moves in the XY directions by the rotation of the X-axis motor (2) and the Y-axis motor (3), and the chip-shaped electronic component (4).
A printed circuit board (5) on which (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 table drive motor, and by rotating the ball screw (9), the supply table is supplied through a nut (10) fitted to the ball screw (9) and fixed to the supply table (6). (6) is the linear guide (1
Move according to 1). (12) is a turntable that rotates intermittently, and mounting heads (14) having four suction nozzles (13) are arranged at equal intervals on the outer edge of the table (12) in accordance with the intermittent pitch. There is.

As shown in FIG. 3, the mounting head (14) is attached to a lower portion of a head elevating shaft (74) which is vertically pierced through the turntable (12) and is vertically driven for driving. The shaft causes the shaft (74) to move up and down at the adsorption station by the source.

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

The position at which the mounting head (14) stops next 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
It is a mounting station, and the component (4) to be sucked by the suction nozzle (13) of the station is mounted on the substrate (5).

In FIGS. 3 and 4, reference numeral (18) is a support, and a swing lever (20) is rotatably mounted around a lever support shaft (19) attached to the support (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 the same mechanism as 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) 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.

Standing pieces (42) and (43) are formed at the lower ends of the lifting plates (31) and (41), respectively, 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) built 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
Elevating rods (52) (53) (54) are attached to the lower part of 5) respectively, and spline shafts (39) (4)
4) and (45) are respectively provided with anti-rotation protrusions (55), so that the elevating rods (52) (53) (54) are prevented from rotating in a horizontal plane. The lift bar (52) is provided above the component supply device (7) at the component suction position. Further, between the spring locking portions (56) (57) (58) provided on the shafts (39) (44) (45) and the respective husbands of the block (48), the block (38) and the block (49). Is provided with a spring (59) wound around each shaft, and the shafts (39), (44), and (45) are biased downward, so that the swing levers (20) (3) are provided.
2) (34) are urged to rotate counterclockwise respectively, and the cam follower (23) and the swing levers (32) (3)
The cam followers (not shown) provided in 4) are adapted to engage with the cam (22) and the cam (not shown), respectively.

Reference numeral (62) is a motor supported by a column (63) provided on the mounting plate (36), and has a nut (65) which rotates the ball screw (64) and is fitted into the ball screw (64). The left-right direction of FIG. 4 moves, and the moving body (50) to which the nut (65) is fixed is guided by the linear guide (66) and moves in the left-right direction of FIG. 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), the rollers (46) and (47) move while rolling 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. 4 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 the position where the component (4) is adsorbed, and is located above the component supply device (7) stopped by the movement of the supply base (6), and is mounted as described above. By raising and lowering with such a configuration, a component feeding operation, which will be described later, which is a component supplying operation of the device (7) is driven.
The elevating rods (53) (54) are moved up and down to drive the component supply operation of the supply device (7) which is not in the position where the component (4) is sucked on both sides thereof.

Next, the component supply device (7) will be described with reference to the drawings.

In FIGS. 1 and 5, (75) is a bulk case for accommodating the chip parts (4) in a loose state, which is detachably attached to the upper part of the parts supply device (7). The parts (4) in the bulk case (75) fall through the chamber (76) and line up in the chute (77) to separate the rotor (10) for separating the parts (4) described below.
It is removably supplied to 1) by the suction nozzle (13).

The component supply device (7) is positioned by inserting the mounting pins (78) provided at the front and rear of its lower part into the mounting holes (79) formed in the supply base (6).
It is attached to the supply table (6).

Next, the mechanism for feeding the parts (4) aligned on the chute (77) will be described.

Reference numeral (81) is a chamber compressed air supply hole as an air ejection passage provided in the lower portion of the chamber (76) as a component storage chamber, and (82) is a chute (77).
Is a chute compressed air supply hole as an air ejection passage provided on the inlet side of the. Both supply holes are compressed air supply passages (8
3), and the supply passage (83) communicates with an elastic air tube (84). By crushing the air tube (84), it is possible to block the compressed air passing through the tube (84). The tube (84) is further communicated with the compressed air supply passage (85), and compressed air supplied from a compressed air source (not shown) causes compressed air to be ejected from the supply hole (81) into the chamber (76). The chip parts (4) accumulated in the chute (77) are blown off at the inlet of the chute (77) so that the compressed air ejected from the supply holes (82) is discharged by the parts (4) aligned in the chute (77). It acts to move to the exit side of (77). The compressed air supply passage (85) is provided with an opening (8) on the upper surface of the connecting body (86) which is attached to the upper portion of the main body (135) described later.
7), and an O-ring is provided around the opening (87) to prevent air from leaking when a compressed air supply rod (159) described later comes into contact with the opening (87).

A valve opening / closing mechanism for opening / closing the air flow by crushing or returning the air tube (84) will be described with reference to FIGS. 1 and 6 to 8.

Reference numeral (88) is a swing lever which swings about a support shaft (89) as a fulcrum, and is biased by a tension spring (90) so as to swing counterclockwise in FIG. The lever (8
An engaging piece (91) for engaging the elevating rods (52) (53) (54) to swing the lever (88) in the clockwise direction is formed at the right end of 8). A valve lever (92) swinging about the support shaft (89) is provided on the back side of the lever (88) of FIG. 1, and the lever (92) is also provided with a tension spring (93) so that the lever (92) of FIG. It is biased to swing clockwise. A tube pressing piece (94) is formed on the lever (92) by bending it to the back side in FIG. 8, and in the state of FIGS. 1 and 7, the pressing piece (94) is pressed by the urging force of the spring (93) into the tube (94). 84) to the body plate (9
It is sandwiched and crushed with the tube pressing projection (96) formed in 5) to block the flow of compressed air. The lever (92) further includes a cam follower (9
7) is attached, and the pressing release piece (98) formed on the swing lever (88) is engaged with the cam follower (94) by the swing of the lever (88) in the clockwise direction, so that the valve is released. The lever (92) is swung clockwise against the biasing force of the spring (93), and the pressing piece (94) is moved away from the tube (84). When the pressing piece (94) separates, the tube (84) opens the flow path of the compressed air due to its elasticity and the pressure of the compressed air.

Next, the chip part (4) is attached to the chute (7
7) A mechanism for further separating will be described based on FIGS. 9 to 18.

At the exit of the chute (77), there is provided a rotor (101) in which a groove (100) for entering the component (4) is cut out at 90-degree intervals as shown in FIGS. 11 to 13. The rotor (10) which is the frontage of the groove (100)
The width in the direction of rotation of 1) is made slightly wider than the width of the component (4). The part (4) guided in the chute (77) is a groove (2) located at the exit of the chute (77).
In 9), the subsequent part (4) is pushed and stored. The component (4) has a chip component mounting surface (102) in the groove (77).
When the rotor (101) is placed on the mounting surface and rotates, the rotor (101) slides and moves on the mounting surface (102).

When the component (4) is fed into the groove (100), it rotates 90 degrees counterclockwise in FIG. 13 and stops, so that the leading component (4) is moved into the chute (77). The next groove (100) separated from the component (4) is located at the outlet of the chute (77), and the component (4) is similarly fed into the groove (100).

Next, a mechanism for intermittently rotating the rotor (101) will be described.

In FIG. 9 to FIG. 18, reference numeral (103) is a rotor shaft on which the rotor (101) is mounted. Below the rotor shaft (103) is a pinion (104) which is
03) It is inserted so that it can rotate independently of the rotation of
Above the pinion (104) is the pinion (104)
A ratchet bracket (105) that rotates together is inserted.

On the upper part of the ratchet bracket (105), a ratchet wheel (106) which rotates integrally with the rotor shaft (103) is pivotally attached to the shaft (103), and the ratchet wheel (106). A ratchet pawl (1) attached to a ratchet bracket (105) is provided in a wheel groove (107) formed at 90 degree intervals around the
08) can be engaged. Reference numeral (110) is a ratchet lock pawl, which is urged by a spring (not shown) to swing and engage with a groove (107) of the ratchet wheel (106) to prevent the ratchet wheel (106) from rotating in the opposite direction. .

Reference numeral (111) is a rack which is fitted to the pinion (104) for rotating the pinion (104) and is reciprocated by being guided by a guide roller (112). 1 and to the right in FIG. 9. A restriction piece (114) is formed on the left end of the rack (111) in FIG. 1, and the restriction is provided on a cam follower (118) attached to a rocking plate (117) that rocks around a support shaft (116). The pieces (114) are engaged and the rightward movement of the rack (111) is restricted.

The swing plate (117) is provided with a link lever (11).
9) is connected to the swing lever (88) by
When the lever (88) swings clockwise in FIG. 1 due to the lowering of the lifting rods (52) (53) (54), the lever (88) swings counterclockwise as shown in FIG. 6 to move the rack (111). Moves to the right and the rotor shaft (103) is rotated through the pinion (104) and the ratchet wheel (106) and the rotor (101) attached to the rotor shaft (103) is rotated by 90 degrees. , Which rotates counterclockwise in FIG. When the lifting rods (52) (53) (54) rise, the rocking lever (88) and the rocking plate (117) return to the position shown in FIG. 1, but the ratchet wheel (106) moves by the ratchet lock pawl (110). The rotation position is maintained, and the rotor (101) also maintains the rotation position. Therefore, the rotor (101) moves 90 times each time the lifting bar descends.
Rotate intermittently every degree.

Next, each stop position due to the intermittent rotation of the rotor (101) will be described with reference to FIGS. 11 to 13.

The stop position of the groove (100) to which the component (4) is supplied from the chute (77) is called a "chip separation station", and the chip component (4) at that station is located.
Is separated from the chute (77) by the rotation of the rotor (101).

At the stop position which is intermittently rotated once from the chip separation station, that is, rotated counterclockwise by 90 degrees, the suction nozzle (13) suctions the chip component (4) by vacuum, and the stop position is set to "1". Chip adsorption station ".

The groove (10) formed by the rotation of the rotor (101)
The next stop position of the chip adsorption station of 0) is the "adsorption miss chip ejection station", and the chip component mounting surface (102) below the groove (100) of the station.
A discharge chip housing chamber (121) is formed by opening the chip component (4) which is not adsorbed and is dropped and discharged. This is because, if not discharged, there is a risk of catching on the chute (77) or the leading chip part (4) aligned with the chute (77) at the chip separation station.

Next, the chip parts (4) housed in the groove (100) in the chip separation station are loaded with the rotor (1).
01) about the structure for vacuum suction to the center of FIG.
4 will be described.

On the chip part mounting surface (102) of the chip separation station, the chip part (4) is mounted on the rotor (101).
A vacuum hole (122) for sucking in the direction of the center of the rotor is opened, and a groove communication hole (123) engraved at a position adjacent to the groove (100) on the lower surface of the rotor (101) is communicated. . The vacuum hole (122) sucks the chip component (4) toward the center to ensure the separation of the chip component (4) from the chute (77), and the chip component (4) shoots the chute (4) at the chip separation station. This is to prevent it from hitting the exit of 77) and biting it.

The vacuum hole (122) is formed by opening the vacuum passage (124) on the chip component mounting surface (102).
The vacuum passage (124) passes through the connector (86) to a vacuum opening (125) opened next to the opening (87) on the upper surface of the connector (86) as shown in FIGS. It is in communication. O-rings are also provided around the vacuum opening (125).

Next, the compressed air is supplied to the compressed air supply passage (8
The mechanism 3) forcibly supplying the inside will be described with reference to FIGS. 5, 6 and 19.

Reference numeral (127) is a forced air supply passage communicating with the compressed air supply passage (83), and the other end is communicated with the forced air supply chamber (128). Air forced supply chamber (12
An air forced supply opening (129) is opened at the other end of 8). An O-ring (130) is provided around the opening (129) of the supply chamber (128) around the opening (129), and the ball (132) is provided on the ring (130) by the urging force of the compression spring (131). ) Is pressed and the supply path (12
7) It prevents the compressed air inside from leaking into the outside air. When compressed air is blown from the forced air supply opening (129) by an air gun or the like, the pressure thereof causes the ball (132).
Is a forced air supply path (1) against the biasing force of the spring (131).
Since it is pushed to the 27) side and separated from the O-ring (130),
The compressed air is supplied to the supply path (127) through the supply chamber (128).
Flowing in and passing through the supply passageway (83) into the supply hole (8
1) It is jetted into the chute (77) from (82).

Next, a mechanism for shutting off the inside of the chute (77) to prevent the component (4) from returning to the chamber (76) side will be described with reference to FIGS. 20 and 21.

The component supply device (7) is a cassette part (1) having a part which communicates with the bulk case (75), the chamber (76) and the chamber (76) of the chute (77).
34) and a main body part (135) into which the cassette part (134) is loaded. Therefore, shoot (7
7) and the compressed air supply passage (85) are connected midway between the cassette portion (134) and the main body portion (135).

Chamber (76) of cassette part (134)
The chute (77) has a transparent plate attached to one side from the side shown in FIGS. 1, 5 and 6, for example, so that the alignment state of the chute (77) of the chip component (4) can be confirmed from the outside. Has been done.

Reference numeral (136) is a blocking plate provided so as to be able to block the outlet of the cassette portion (134) of the chute (77), and the spring plate (13) is wide in the direction perpendicular to the paper surface of FIG.
7) and the right end of the spring plate (137), which is bent up vertically to the front side of the spring plate (137) and has a thickness such that it can be inserted into the chute (77) in the direction perpendicular to the plane of the paper (as shown in FIG. 20). The locking plate (138) has the same thickness as the spring plate (137). The blocking plate (1
The spring plate (137) of 36) is supported from below by a pressing piece (139) formed at the lower end of the cassette part (134) and extending perpendicularly to the paper surface of FIG.
Like 9), it is sandwiched and held between a pressing surface (140) formed at the lower end of the cassette portion (134).
The left end of the spring plate (137) is bent vertically as shown in FIG. 20 to form a protruding piece (141), which is inserted into a restriction groove formed on the lower surface of the cassette portion (134) and blocked in the left-right direction. The position of the plate (136) is prevented from shifting. The chute (77) of the cassette portion (134) has a groove formed at the lower end surface of the tip portion of the chute (77) by a width that allows the locking plate (138) to enter. The locking plate (138) is shown in FIG.
In the state of 0, the chip parts (4) aligned in the chute (77) are pressed from below so that the chip parts (4) before and after this position do not move from this position.

Reference numeral (142) is a blocking plate release lever which can be swung about a support shaft (143) as a fulcrum, and a tension spring (144).
It is adapted to rotate clockwise by the urging force of. The release lever (142) is provided with a release pin (145) and a locking pin (146), and when the component supply device (7) is attached to the supply base (6), as shown in FIG. The locking pin (146) is pressed against the upper surface of the supply base (6), the lever (142) swings counterclockwise, and the release pin (142) presses the spring plate (137). 137) is slid into the recess (147) formed in the pressing surface (140). As a result, the locking plate (138) moves downward to release the blocking of the movement of the chip part (4) in the chute (77).

Next, the cover (149) covering the upper part of the chute (77) and the shutter (150) covering the upper part of the chip suction station will be described with reference to FIGS. 9 to 12.

The cover (149) is a cassette part (134).
Since the upper part of the chute (77) of the main body (135) continuing from the above is open, the rotor next to the chute (77) and the chip separation station, the adsorption miss tip ejection station and the adsorption miss tip ejection station. (10
It covers the rotation stop position of 1) and has an outer shape shown by a two-dot chain line in FIGS. 11 and 12. The cover (149) is parallel to the chute (77).
The chute (7) is made rotatable by a supporting shaft (not shown) above the second chute (77) as a fulcrum.
7) The upper part can be opened.

The shutter (150) is the shutter (15).
0) has a slot (151) fitted with a pin (152) protruding from the main body (135), and the shutter (1)
50) slides on the chip suction station so that it can be opened and closed, and the shutter (150) is on the station except when the chip component (4) is sucked by the suction nozzle (13). ) Is intended to be covered by. The shutter (150) is opened and closed by swinging a shutter lever (153) whose one end engages with the shutter (150) around a shutter support shaft (154) as a fulcrum to drive the shutter lever (153). Is a tension spring (155) for urging the lever (153) to rotate clockwise, and an electronic component automatic mounting for rotating the lever (153) against the urging force of the spring (155). It is a shutter drive lever (156) provided on the main body side of the apparatus (a part other than the supply table (6)).

Compressed air is supplied to the compressed air supply passage (85) and the vacuum passage (124) from a compressed air source (not shown) provided on the main body side (a portion other than the supply table (6)) of the electronic component automatic mounting apparatus. The mechanism for supplying the vacuum pressure will be described with reference to FIGS. 1, 3, 22, and 23.

An air pressure supply block (158) as an attaching / detaching means is attached to each of the lifting rods (52) (53) (54), and (159) is the block (15).
8) A compressed air supply rod as an air supply means that penetrates the inside so as to be vertically movable. A compressed air chamber (16) in which compressed air is supplied from a compressed air source (not shown) into the block (158) through a compressed air supply tube (160).
1) is formed, and the rod (159) penetrates through the air chamber (161). A ventilation hole (162) is opened in the lower end surface of the rod, and the ventilation hole (162) is formed.
Penetrates through the rod (159) and communicates with the opening (163) on the side surface of the rod (159). The rod (15
9) always uses the compression spring (164) for the block (1).
58) is urged to descend.

Reference numeral (165) denotes a negative pressure supply rod as a vacuum pressure supply means which penetrates the block (158) in a vertically movable manner, and a negative pressure supply tube (166) formed in the block (158). A negative pressure chamber (167) to which a vacuum is supplied (that is, a vacuum is sucked) from a vacuum source (not shown) is formed, and the rod (165) penetrates the negative pressure chamber (167). is doing. The rod (1
A vent hole (168) is opened at the lower end surface of the rod 65, and the vent hole (168) penetrates the inside of the rod (165) and communicates with the opening (169) on the side surface of the rod (165).
The rod (165) is always biased by a compression spring (170) so as to descend with respect to the block (158).

As shown in FIG. 22, the openings (163) and (169) have the rods (159) and (165) which are springs (164) and (17).
In the state of projecting downward due to the bias of (0), the block (1
58) is covered by the wall surface inside, and the ventilation holes (162) (1
68) is in a state of not communicating with the compressed air source and the vacuum source.

The rods (159) and (165) descend as the elevating rods (52) (53) (54) descend, but at the component suction position or the component supply position of the elevating rods (53) (54). The devices are connected to each other by abutting against the positions of the openings (87) and (125) on the upper surface of the connecting body (86) of the device (7).
3) and (169) respectively communicate with the compressed air chamber (161) and the negative pressure chamber (167) as shown in FIG.

Opening (87) (1) of each component supply device (7)
The position of 25) is a position that communicates with the ventilation holes (162) (168) of the rods (159) (165) attached to the lifting rod (52) when each component supply device (7) stops at the component suction position. It is supposed to be.

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) for each component type. However, the chute (77) of the component supply device (7) to be arranged
It is necessary to align and feed the chip component (4) in the chip separation station of the inner and rotor (101).

Therefore, in the case of the component supplying device (7) in which the cassette part (134) is not attached to the main body part (135), the cassette part (134) is attached to the main body part (135), but the cassette part (134) is attached. Even when the chip parts (4) are slightly aligned with the chute (77), the blocking plate (136) is in the state of FIG. 20, and does not jump out from the exit of the chute (77). It is attached to the main body (135).

Next, the component supply device (7) is attached to the supply table (6).
When the operator removes the compressed air, the operator intermittently blows the compressed air by pressing an air gun or the like that blows the compressed air to the forced air supply opening (129) of the component supply device (7) with the cassette portion (134) attached. Let The air gun does not normally blow out air but blows out compressed air by pulling a lever or the like, so that compressed air can be blown out intermittently.

At this time, since the part (4) has not been supplied to the exit side of the chute (77), the locking pin (146) is pushed by hand or by using an appropriate tool to release the pin (1).
45) pushes the spring plate (137) into the recess (147), and the locking plate (138) is lowered from the chute (77) so as to be retracted. A supply opening (129) and a supply path (127) are provided by intermittently blowing out compressed air.
Compressed air is ejected from the supply hole (81) and the supply hole (82) through the nozzle to agitate the chip component (4) in the chamber (76), and when the air ejection stops, a new chip is created in the chute (77). The chip parts (4) that are in line with the parts (4) and are already aligned in the chute (77) are extruded and transported to the chip separation station of the rotor (101). Whether the chip parts (4) are supplied to the chute (77) and the chip separation station can be checked by opening the cover (149), and the alignment state of the chute (77) can be checked from the lateral direction. be able to.

Next, after being checked in this way, each component supply device (7) is mounted on the supply table (6).

When the mounting pin (78) is inserted into the mounting hole (79) and positioned and mounted on the supply base (6) of the component supply device (7), the locking pin (146) is mounted on the supply base (6). When pressed by the upper surface, the release lever (142) swings counterclockwise in FIG. 1 using the support shaft (143) as a branch,
The spring plate (137) is pushed in and the locking plate (138) is retracted below the chute (77) as shown in FIG.

When the component supply device (7) is attached to the supply base (6) and a plurality of units are arranged adjacent to each other, the alignment of the components (4) cannot be confirmed from the lateral direction, and the cover (14)
9) It becomes difficult to check after opening.

Next, the suction nozzle (13) sucks the chip component (4) from the component supply device (7) and mounts it on the printed circuit board (5). This operation will be described.

Next, when an operation section (not shown) is operated to start automatic operation, the motor (3) is rotated and the desired chip component (4) is supplied through the ball screw (9) and the nut (10). The supply table (6) is guided by the linear guide (11) to move the component supply device (7) to the suction position of the suction nozzle (13) waiting in the suction station. During this movement, the shutter lever (153) is biased by the spring (155) and rotated clockwise in FIG. 9, and the shutter (150) covers the chip separation station as shown in FIGS. 9 and 11. ing.

When the desired component supply device (7) is stopped at the suction position of the suction nozzle (13), the solenoid (not shown) is excited to release the regulation of the swing lever (32) in the counterclockwise direction in FIG. The swing lever (32) swings counterclockwise in FIG. 4 by the rotation of the cam (not shown) caused by the rotation of the cam support shaft (21) in the period from 0 degree to 180 degrees in FIG. 33) through the spline shaft (39)
Is lowered by the urging force of the spring (9), the lifting bar (52) is lowered and is engaged with the engaging piece (91), and the swing lever (88) is
Is swung clockwise in FIG. As the lifting rod (52) descends, the block (158) descends, and the rods (159) (165) descend as shown in FIG.
6) abutting against the supply passage (85) and the vacuum passage (1)
24). As shown in FIG. 23, a lifting rod (52)
As the rods (159) and (165) rise in the block (158), the openings (163) and (169) communicate with the compressed air chamber (161) and the negative pressure chamber (167), respectively. It also flows into the supply passage (85), and the inside of the vacuum passage (124) is also evacuated.

Therefore, as shown in FIGS. 13 and 14, vacuum is drawn from the vacuum hole (122) through the vacuum passage (124), and the chip part (4) in the groove (100) of the chip separation station. Is vacuum-sucked toward the center of the rotor (101) through the groove communication hole (123).

On the other hand, when the vacuum suction is started, the pressing release piece (98) of the swing lever (88) is not yet in contact with the cam follower (97), and the bulk lever (92).
1 is in a state of being swung counterclockwise in FIG. 1 by the spring (93), and the tube pressing piece (94) is in contact with the pressing projection (96) as shown in FIG.
4) is still being held so that compressed air cannot flow.

The rocking plate (117) rocks counterclockwise in FIG. 1 by rocking the rocking lever (88), and the spring (1
The rack (111) is moved to the right in FIG. 1 by the biasing force of 13) and the pinion (104) is rotated from the state of FIG. 17 to the state of FIG. 18, and the ratchet bracket (105), ratchet wheel (106) and ratchet pawl (108)
The rotor shaft (103) rotates 90 degrees through the rotor, the rotor (101) rotates 90 degrees counterclockwise in FIG. 13 from the female tie in FIG. 15 to the state in FIG. 16, and the chip component (4) becomes the chip. The adsorption station is reached and then stopped. Rotor (10
During the rotation of 1), the chip part (4) of the chip separation station is aligned with the chute (77) by vacuum suction from the vacuum hole (122) and the outlet of the chute (77). It will not hit and will not pop out due to the cover (149) and shutter (150).

During the rotation of the rotor (101), the pressing release piece (98) presses the cam follower (97) by the rocking of the rocking lever (88), and resists the tension spring (90) against the lever (90). 92) is swung clockwise, the pressing piece (94) is separated from the protrusion (96) (see FIG. 8), the air tube (84) opens the flow path, and the compressed air flows through the air supply passage (83). It is jetted through the air supply holes (81) and (82) into the chute (77). In this way, the new chip part (4) is pushed from the inside of the chute (77) into the groove (100) located in the chip separation station, and
The chip parts (4) in the chamber (76) are agitated and new chip parts (4) are aligned in the chute (77).

Next, during the same timing of 0 ° to 180 °, when the lift bar (52) is lifted by the rotation of the cam, the rotor (101) is moved to the position rotated by the lock of the lock claw (110). While holding (see FIG. 16), the swing lever (88) swings counterclockwise in FIG. 1 by the spring (90), and the movement of the release piece (98) causes the cam follower (9) to move.
The movement of 7) is released, the valve lever (92) swings by the urging force of the spring (93), and the tube pressing piece (9)
4) holds the air tube (84) as shown in FIG. 7 between the holding projection (96) and the passage of the compressed air is blocked, and the blowing of the compressed air from the supply holes (81) (82) is stopped. To do. Further, the block (158) is also lifted by the lifting of the lifting rod (52), and the opening (87) and the vent hole (16).
2) Communication with and vacuum opening (125) and vent (16
The communication with 8) is released and the vacuum suction of the chip separation station is also stopped.

Next, 18 of the timing chart of FIG.
The shutter drive lever (156) moves to the right in FIG. 9 due to the rotation of a cam (not shown) between 0 degrees and 360 degrees,
The shutter (150) is located at a position shown in FIGS. 10 and 12 where the shutter lever (153) is opened above the position where the chip separation station shown in FIGS. 9 and 11 is covered.
It moves by rocking. Next, the head elevating shaft (74) descends through the turntable (12) by the rotation of a cam (not shown) between 180 ° and 360 ° in the timing chart, and the mounting head (14), that is, the suction nozzle (13). Of the chip adsorption station groove (1
The chip component (4) in (00) is adsorbed and taken out. When the mounting head (14) rises, the shutter driving lever (156) returns to the left, and the shutter lever (153) swings due to the biasing force of the spring (155) and the shutter (1
50) is a chip adsorption station covering FIGS. 9 and 11.
Move to position.

Next, the operation from 0 to 180 degrees in FIG. 24 is performed again. That is, although the turntable (12) rotates intermittently and the next mounting head (14) reaches the suction station, the component supply device (7) for supplying the chip component (4) to be taken out next is currently , The motor (8) does not rotate and the supply table (6) does not move,
Therefore, the same component supplying device (7) is located in the suction station, and the lifting rod (52) descends between 0 ° and 180 ° in the same manner as described above and the rotor (101 ) Rotation to supply the chip component (4) to the chip adsorption station, supply of the chip component (4) from the chute (77) to the chip separation station, from the chamber (76) to the chute (77). Chip parts (4)
The alignment operation of is performed. Subsequently, the opening operation of the shutter (150), which is the operation from 180 degrees to 360 degrees in FIG. 24,
The taking-out operation of the chip component (4) and the closing operation of the shutter (150) by lowering the suction nozzle (13) are performed in the same manner as described above.

Next, when the lift bar (52) is raised and the swing lever (32) is fully rotated in the clockwise direction in FIG. 4, a solenoid (not shown) for regulating the lever (32) is activated to operate (not shown). The locking lever engages with a locking bolt (not shown), and the rocking of the rocking lever (32) in the counterclockwise direction is restricted. Further, the solenoid for restricting the swing of the swing lever (34) is actuated, the locking lever (not shown) is rotated counterclockwise, and the restraint of the lever (34) is released.

Next, in the same manner as described above, 180 degrees to 36 degrees.
The operation of opening and closing the shutter (150) of the component supply device (7) at the component suction position and taking out the chip component (4) during the period of 0 degree is performed in the same manner as described above. 25), which is the component supply device (7) for supplying 4), of the chip component (4) of the component supply device (7) at the position "B" in FIG. 25 (rotation of the rotor (101) and supply hole described above). (81) (82) compressed air blowing operation) by rotation of a cam (not shown), rotation of the swing lever (34), lowering of the rod (35), and raising and lowering guided by the linear guide (40). Board (41)
26 and the lowering of the spline shaft (45) by the urging force of the spring (59) lowers the lifting rod (54), presses the engaging piece (91) as shown in FIG.
As the pneumatic pressure supply block (158) attached to 4) descends, the ventilation holes (162) (168) respectively become the opening (87) and the vacuum opening (125) as in the case of the lifting rod (52). Communicate. In this way, the same chip component (4) feeding operation as described above is performed for the component supply device (7) at the position "B" in FIG. 26, and the elevating rod (54) is raised. At this time, the elevating rod (54) is located at the position indicated by the chain double-dashed line in FIG. 4 by the movement of the moving body (50) along the linear guide (66) by the rotation of the motor (62). (7) engaging piece (91) and opening (87) (1
Since the positional relationship of 25) is the same, the ventilation hole (162)
(168) is adapted to communicate with the openings (87) and (125).

Next, in the next period of 0 to 180 degrees, as shown in FIG.
Supply stand (6) as shown in "Part movement of parts supply section"
Has moved and the component supply device (7) at the position of "B" in FIG.
Reaches the suction position of the suction nozzle (13). During this time, since the shutter (150) covers the tip suction station of the rotor (101) as shown in FIGS. 9 and 11, the component (4) does not pop out. Next 180
The suction nozzle (13) takes out the chip component (4) from the component supply device (7) in the period of from 360 degrees to 360 degrees. During this take-out operation, the advance operation of the part (4) is performed in the same manner as described above for the part supply device (7) at the position "C" in FIG. 27 for supplying the chip part (4) to be taken out next. However, at this time, due to the movement of the moving body (50), the lifting bar (54) is in the position shown by the solid line in FIG.

Next, in the next period from 0 to 180 degrees, the component supply device (7) at the position of "C" has the suction nozzle (1
When the pickup position of 3) is reached and the pickup nozzle (13) takes out the component (4) in the period of 180 to 360 degrees, as shown in FIG. 28, the component supply at the position of “D” is performed. The moving body (50) moves so that the lifting bar (54) is located at the position of the device (7), and the lowering of the lifting bar (54) performs the same feeding operation of the component (4) as described above. At this time, the position of the elevating rod (54) is larger than the width of the component supply device (7) of "D" is larger than the width of the component supply device (7) of "C" (component supply of "B" and "C"). The widths of the devices (7) are the same.), The positions of the engaging pieces (91) and the openings (87) (125) of the component supplying device (7) of "D" are "B".
Since it is located at a position 1.5 times away from the position next to "C" (the positional relationship between the engaging piece (91) and the openings (87) and (125) is the same as "C"). It is located at the center of the positions indicated by the solid line 4 and the chain double-dashed line in FIG. 4, and the ventilation holes (162) (168) are opened by the lowering of the lifting rod (54) (87).
It becomes possible to communicate with (125).

Next, the chip component (4) taken out to the suction nozzle (13) at the suction station is recognized by the recognition device (15) at the recognition station by the intermittent rotation of the turntable (12). At the angle correction station, the nozzle rotation roller (16) corrects the angular deviation among the positional deviations, and the angular positioning is performed in the angular amount θ direction specified by the data (not shown).

Next, the component (4) is moved down the suction nozzle (13) at the mounting station to move the XY table (1).
The X-axis motor (2) and the Y-axis motor (3) are mounted on the printed circuit board (5) designated by data (not shown) positioned by correcting the positional deviation amount by the movement of the Y-axis motor (3).

As described above, the chip component (4) is taken out from the component supply device (7) to the suction nozzle (13),
Although it is mounted on the printed circuit board (5), the suction nozzle (13) becomes the chip component (4) in the chip suction station.
When the suction of the chip fails, the chip component (4) is discharged into the discharge chip storage chamber (121) at the suction-miss chip discharge station due to the intermittent rotation of the next rotor (101).

Chip parts (4) in the parts supply device (7)
Is gradually decreased and the worker notices a decrease in the number of parts in the bulk case (75) due to a part expiration warning device (not shown) (the bulk case (75) is transparent or translucent and the remaining amount of the part (4) is You can check it.),
The parts supply device (7) having a small number of remaining parts is removed from the supply base (6) by replacing the operation of the device, and a new part (4) is replaced with a full bulk case (75). (4) is replenished. At this time, even if the component supply device (7) is detached from the supply base (6), the locking pin (146) is disengaged from the upper surface of the supply base (6), so that the lever (142) moves to the timepiece as shown in FIG. The release pin (145) disengages from the spring plate (137), and the locking plate (138) presses the chip component (4) remaining in the chute (77) to swing the chute (77). The chip parts (4) aligned on the rotor (101) side are prevented from returning even if the part supply device (7) is tilted toward the bulk case (75) side.

Therefore, the chip part (4) closer to the bulk case (75) than the chip part (4) held by the locking plate (138) in the chute (77) is located on the bulk case (75) side. Even if it returns (or even if the chip component (4) so far is gone), the component (4)
After the replenishment is completed, the air gun is pressed against the forced air supply opening (129) in the same manner as described above, and the compressed air is intermittently sent into the forced air supply path (127). The parts (4) are aligned within the chute (77). At this time, since the chip component (4) is supplied before the position where it is pressed by the locking plate (138), it is not necessary to supply compressed air by the air gun while pushing the locking pin (146). Compressed air is supplied with the stop pin (146) kept as it is. After the chip parts (4) are replenished in this way, the parts supply device (7) is attached to a predetermined position of the supply base (6), and the parts mounting operation is continued. In order to replenish this component (4), the component supply device (7) is arranged in an array because the component mounting on a predetermined number of printed circuit boards (5) is completed and the setup is changed to another type of printed circuit board (5). It may be performed at the time of a setup change work.

As in this embodiment, the rods (159) (16)
5) is attached to and detached from the connecting body (86) to supply compressed air and vacuum pressure to the component supply device (7) that performs the component feeding operation. Therefore, air or vacuum pressure is supplied to each component supply device (7) using a tube. It is not necessary to provide a check valve for supplying compressed air or vacuum pressure to all parts of the supply base (6) to which the component supply device (7) is attached (not as in this embodiment). When the component supply device (7) is attached, the check valves having a structure in which compressed air and vacuum pressure do not leak when they are not attached in communication must be attached to all attachment positions of the supply base (6). The cost can be significantly reduced compared to the case of doing it.

In the present embodiment, the vacuum drawing through the vacuum passage (124) in the component supply device (7) is performed by the chute (7).
7) Only in the case of separating the chip component (4), a vacuum passage is formed at a position where the groove communication hole (123) moves with the rotation of the rotor (101) from the vacuum hole (122). The groove (100) while the rotor (101) is rotating.
Vacuum suction of the chip part (4) inside the part (4)
Even if you do not want to stick out from the groove (100), attach the pneumatic supply block (158) to the lift bar,
It is possible to apply the vacuum pressure supply by attaching and detaching the vacuum pressure by elevating the elevating bar each time the supply table (6) moves.

In this embodiment, the pneumatic pressure supply block (15
8) is attached to the lifting rods (52) (53) (54), but the block (158) is lifted and lowered by a lifting device independent of these lifting rods to attach and detach it to the connecting body (86). The compressed air and the vacuum pressure may be supplied, or if a drive lever for only opening and closing the valve for intermittently sending the compressed air is provided, it is integrated with the lever. Alternatively, the lever may be provided integrally with the lever that is provided only with the lever that drives the rotor as the separating means.

Furthermore, in the present embodiment, the case where the supply table (6) is movable in the arrangement direction of the component supply device (7) has been described, but the supply table (6) is fixed and the suction nozzle is Even when the chip component (4) is moved and taken out from the desired component supply device (7), the pneumatic pressure supply block like the lifting rods (53) (54) of the present embodiment. It is possible to make it possible to move the lifting rod to which (158) is attached so that compressed air or vacuum pressure can be supplied to an arbitrary component supply device (7).

Also, the lifting rod (52) 53 of this embodiment.
Although (54) moves up and down, the supply of vacuum and compressed air may be removed by reciprocating left and right.

In this embodiment, the forced air supply passage (127) which is the second air supply passage is connected to the compressed air supply passage (83) which is the first air supply passage. 127) may be communicated with a supply hole opened in the chamber (76) separately from the chamber compressed air supply hole (81), or the supply passage (127) may be separated from the chute compressed air supply hole (82). It may be communicated with a supply hole opened in the chute (77).

Further, in the present embodiment, the component supply device (7)
When is removed from the supply base (6), air is intermittently sent from the forced air supply opening (129) using an air gun,
The part (4) was introduced from the chamber (76) into the chute (77), and the chip part (4) in the chute (77) was conveyed to the chute (77) outlet.
Without lever, attach the lever (88) to the air tube (84)
It is also possible to provide a lock mechanism capable of locking the valve in the open state (that is, the state in which the valve is opened) so that the compressed air is intermittently supplied from the opening (87) by the air gun.

Furthermore, the air tube (84) may be opened when the component supply device (7) is removed from the supply base (6).

[0097]

As described above, according to the present invention, the chip parts can be aligned in the chute only by opening and closing the air gun without the work of opening the valve. Easy alignment work.

[Brief description of drawings]

FIG. 1 is a side view of a component supply device.

FIG. 2 is a plan view of an electronic component automatic mounting device to which the present invention is applied.

FIG. 3 is a side view of a part of an electronic component automatic mounting apparatus to which the present invention is applied, including a cross section taken along the line XX of FIG.

FIG. 4 is a front view showing a lifting mechanism and a moving mechanism of a lifting bar.

FIG. 5 is an enlarged side view of a main part of the component supply device.

FIG. 6 is an enlarged side view of a main part of the component supply device.

FIG. 7 is a side view showing a valve opening / closing mechanism of the component supply device.

FIG. 8 is a side view showing a valve opening / closing mechanism of the component supply device.

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

FIG. 10 is a side view of a component separating unit of the component supply device.

FIG. 11 is a plan view of a component separating unit of the component supply device.

FIG. 12 is a plan view of a component separating unit of the component supply device.

FIG. 13 is an enlarged plan view of a component separating unit of the component supply device.

FIG. 14 is an enlarged side view of a component separating unit of the component supply device.

FIG. 15 is a plan view from below showing a component separating mechanism of the component supply device.

FIG. 16 is a plan view from below showing a component separating mechanism of the component supply device.

FIG. 17 is a plan view from below showing a component separating mechanism of the component supply device.

FIG. 18 is a plan view from below showing a component separating mechanism of the component supply device.

FIG. 19 is an enlarged side view showing a mechanism for forcibly supplying compressed air of the component supply device.

FIG. 20 is a side view showing a mechanism for interrupting the chute of the component supply device on the way.

FIG. 21 is a side view showing a mechanism for interrupting the chute of the component supply device midway.

FIG. 22 is a side view showing a mechanism for supplying compressed air and vacuum pressure to the component supply device.

FIG. 23 is a side view showing a mechanism for supplying compressed air and vacuum pressure to the component supply device.

FIG. 24 is a diagram showing a timing chart.

FIG. 25 is a front view showing the lifting operation of the lifting rod.

FIG. 26 is a front view showing the lifting operation of the lifting bar.

FIG. 27 is a front view showing the lifting operation of the lifting bar.

FIG. 28 is a front view showing the lifting operation of the lifting bar.

[Explanation of symbols]

 (4) Chip-shaped electronic component (chip component) (5) Printed circuit board (6) Supply board (7) Component supply device (13) Adsorption nozzle (76) Chamber (component storage chamber) (77) Chute (81) Chamber compression Air supply hole (82) Chute compressed air supply hole (83) Compressed air supply passage (first air supply passage) (84) Air tube (open / close valve) (85) Compressed air supply passage (first air supply passage) (92) Valve lever (open / close valve) (94) Tube pressing piece (open / close valve) (94) Tube pressing protrusion (open / close valve) (127) Air forced supply path (second air supply path) (128) Air Forced supply chamber (second air supply passage) (129) Air forced supply opening (second air supply passage)

Claims (1)

[Claims] 1. A component supply which is detachably mounted on a supply table and which is introduced from a component storage chamber and arranged in a chute is separated from an outlet of the chute by a separating means and is supplied to a suction position of a suction nozzle. In the device, the on-off valve provided in the middle of the device is opened and closed in order to stir the chip components stored in the component storage chamber and guide them into the chute or to convey the chip components aligned in the chute to the chute outlet side. A first air supply passage for intermittently supplying compressed air from a compressed air source outside the component supply device, and a first air supply passage separately stored in the component storage chamber without passing through the on-off valve. A second air supply passage capable of supplying compressed air is provided in order to stir the chip parts and guide them into the chute or to convey the chip parts aligned in the chute to the chute outlet side. A component supply device characterized by the above.