JPH05275894A - Part mounting apparatus - Google Patents

Abstract

PURPOSE:To convey compressed air, vacuum and so on for supplying them to a stand mounted with a part feeding device without the interference of conveying means such as tubes with each other and thus the application of ineffective force. CONSTITUTION:When a stand 11 mounted with a part feeding device is coupled with a moving body with its cylinder rod retracted, a cam is rotated and a swing lever 60 is swung, moving up an elevating plate 53. This connects a vacuum valve 49 and an air valve 50 to a vacuum port and an air port, respectively; subsequently, vacuum and compressed air are supplied to the part feeding device through tubes 66 and 67 connected to the moving body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting table on which a large number of component supply devices for supplying chip components are mounted, and the component supply device is moved in a parallel direction while being connected to a connecting portion of the mounting base. The present invention relates to a component mounting device that includes a moving body and that picks up a chip component supplied from a component supply device that is moved by the movement of the moving body with a pick-up tool and mounts it on a printed circuit board.

[0002]

2. Description of the Related Art A component mounting apparatus of this type is disclosed in Japanese Patent Application No. 3-76309 filed by the present applicant.

In the component mounting apparatus, a large number of bulk cassette feeders are mounted on a supply table as a component supply device for aligning chip components on a chute by using compressed air pressure and vacuum pressure and separating and supplying the chip components from the chute. The supply table is moved in the mounting direction of the bulk cassette feeder and is supplied to a position where the desired component is taken out by the suction nozzle. In such an apparatus, since a tube is connected to the supply base from the main body to supply compressed air or vacuum pressure to the component supply device and is supplied to each component supply device from the supply base, it is possible to move the supply base. Along with this, one end of the tube connected to the supply base also moves.

[0004]

However, in the prior art, a plurality of supply bases mounted with a component supply device and connected to a movable body which cannot move by itself but is movable by itself are the same. When the tubes or the like for supplying compressed air or vacuum pressure to the supply bases are connected to the respective supply bases, the movable body comes into contact with the moving body or moves. When there is a supply table that is connected to the body and a supply table that is not connected, the tubes connected to them may come into contact with each other and the tubes may be easily broken. In order to avoid this, it is conceivable to pass the tube through the cable bear, but providing a cable bear for each supply base requires a space, which is disadvantageous for downsizing the device. In addition, in the component mounting device that can move the supply table outside the component mounting device and carry in a new supply table, the tube must be attached and detached, but the tube pulled out from the supply table is somewhere. There is also a drawback that it is troublesome to attach and detach because it must be fixed.

Therefore, the present invention aims to eliminate these drawbacks.

[0006]

Therefore, according to the present invention, there is provided a mounting table on which a large number of component supply devices for supplying chip components are mounted, and the mounting direction of the component supply devices in a state of being connected to a connecting portion of the mounting tables. In a component mounting device for mounting a chip component supplied from a component supply device moved by the movement of the movable body on a printed circuit board, the component being connected to the movable body. A transmitting means for transmitting a transmitted object used in the mounting table for the supply device, a delivery port connected to the transmission means to deliver the transmitted object from the moving body, and a transmitted object from the delivery port. The receiving port provided on the mounting table for receiving the receiving port and the contacting / separating means for contacting / separating the receiving port with the delivery port are provided.

[0007]

When the contacting / separating means connects the delivery port for delivering the object to be transmitted from the moving body and the receiving port provided on the mounting table connected to the moving body by the connecting portion, the front and back sides are provided for the component supply device. The object to be transmitted used on the mounting table is supplied to the mounting table by the transmission means through the sending port and the receiving port.

[0008]

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

In FIGS. 1 and 2, (1) is a turntable which is intermittently rotated by a drive source (not shown), and a lower end of the turntable is provided with a chip-like electronic component (2) (hereinafter referred to as a chip) from a component supply device (9) described later. A large number of suction heads (3) for taking out components) are arranged. The suction head (3) has a large number of suction nozzles (4).

Reference numeral (5) is an XY table on which a printed circuit board (6) on which the chip parts (2) taken out by the suction nozzle (4) are sequentially mounted is placed, and an X-axis motor (7).
And is moved in XY by the Y-axis motor (8).

(9) is a component supply device for supplying the chip component (2) to the component taking-out position by the nozzle (4),
A large number are mounted on a mounting table (11) that moves on the component supply table (10).

A suction station is a position where the suction nozzle (4) takes out the chip component (2) supplied from the component supply device (9), and the nozzle (4) is moved to the recognition station by the intermittent rotation of the rotating disk (1). When moved, the recognition device (12) recognizes the posture of the chip component (2) sucked by the nozzle (4).

Reference numeral (13) is a nozzle rotation device for rotating the nozzle (4) through the head (3) based on the recognition result of the recognition device (12), which is a nozzle rotation correction station. The rotating device (13) is moved toward and away from the head (3) by a moving mechanism (not shown).

The position next to the nozzle rotation correction station is a mounting station, and the nozzle (4) sucking the component descends to mount the component on the substrate (6) on the XY table (5).

A mechanism for moving the mounting table (11) will be described.

Reference numeral (15) is a movable body which can be engaged with and disengaged from the mounting table (11), and by moving along the guide rails (16) and (17) while being engaged with the mounting table (11), The mounting table (11) is a guide rail (18) (19)
Move along.

Reference numeral (20) is a screw shaft which is fixed to the component supply table (10) and does not rotate, and is fixed to the base (21) of the mounting table (11) as shown in FIGS. When the drive pulley (23) attached to the output shaft of the motor (22) is rotated by the motor (22), the driven pulley (25) fixed to the nut (24) fitted to the screw shaft (20). ) Is rotated by means of a belt (26) that is wound around both pulleys (23) and (25), and a nut (24)
Rotates while moving along the screw shaft (20).

Since the nut (24) rotates in the support bearing (27) fixed to the base (21), the support bearing (27) moves together with the nut (24). Therefore, the base (21), that is, the moving body (15)
Is a guide rail (16) driven by a motor (22)
Move by being guided by (17).

Hereinafter, the mounting table (11) and the moving body (15)
The engagement mechanism (29) will be described with reference to FIGS. 1, 3 and 4.

Reference numeral (30) denotes a rotatable roller fixed to the back surface of the mounting table (11) with screws (31).
One pair is provided at each end of 1). Reference numeral (32) is an engaging portion which is inserted between the pair of rollers (30) and (30) and engages the mounting table (11) and the moving body (15) with a slightly thin tip. The engagement part (32) is attached to the tip of a rod (34) of a cylinder (33) installed on a base (21) of a moving body (15) as shown in FIG. The part (32) is rotated about an integrally formed shaft (35). As shown by the solid line in FIG. 4, when the rod (34) is retracted, the engaging portion (3
2) is fitted between the rollers (30) and (30) (Fig. 5).
reference). As a result, the mounting table (11) is moved to the motor (2
The guides (18), (19) along with the movement of the moving body (15) along the guides (16), (17) by the driving of 2).
Will be moved along.

Reference numeral (37) is a cylinder provided on the side surface of the guide (18) for fixing the unused mounting table (11) to the standby position at both ends of the supply table (10).
The rod (38) is moved up by the driving of the cylinder (37), and the fitted portion (3) provided on the back surface of the mounting table (11).
9) The mounting table (11) is fixed in that position by being fitted into it. As shown in FIG. 3, the cylinder (37) moves when the mounting table (11) moves to the standby position detected by a sensor (not shown) at the left end of the component supply table (10) by the movement of the moving body (15). It is provided in two places so that it can be engaged with one mounting table (11).
The right end position of 0) is also provided at two places in the same manner.

Next, the structure for supplying compressed air and negative pressure (vacuum suction force) to the component supply device (9) will be described with reference to FIGS. 1 and 3.
And FIG. 6 to FIG. 12.

In FIG. 6, (40) is a vacuum valve for supplying a negative pressure to the component supply device (9), and (41)
Is an air valve that supplies compressed air to the device (9), and both valves (40) and (41) are provided for each mounting position of the component supply device (9) mounted on the mounting table (11). Each valve (40) has a vacuum passage (42)
And a vacuum communication port (44) through the vacuum tube (43)
And each valve (41) is connected to an air passage (4
5) and the air tube (46) through the air communication port (4
It communicates with 7).

In FIGS. 1 and 3, (49) is a vacuum valve provided in the moving body (15) and capable of communicating with the vacuum communication port (44), and (50) is also the moving body (15).
Is an air valve which is provided in the air communication port and can communicate with the air communication port (47). The valves (49) (50) are attached to the base (2
1) is fixed to an elevating plate (53) fixed on an elevating rod (52) which is guided up and down through a guide body (51), and the elevating plate (53) is biased by a spring (54). When they are moved up by, they are communicated with the communication ports (44) and (47), respectively. The valves (49) (50) and the valves (40) (41) have the same structure, and the spring (55) causes the ring body (56) to close the valve plug (5) as shown in FIG.
7), which closes the outlet by pressing it against the spring (5), when the sliding body (58) is pressed from above as shown in FIG.
5) Pushing down the ring body (56) against the valve stopper (5)
7) Make a gap between it and, for example, vacuum communication port (44)
Is communicated with.

In FIG. 7, reference numeral (60) denotes a V-shaped swinging lever that can swing around the support shaft (61), and has an engaging roller (62) rotatably attached to one end thereof. The engaging roller (64) fitted between the L-shaped projection (63) formed on the lower portion of the lifting plate (53) and the lower portion of the lifting plate (53) and attached to the other end is The cam (65) formed integrally with the shaft (35) is engaged by the biasing force of the spring (54).

When the rod (34) is projected by the operation of the cylinder (33), the cam (65) rotates as shown in FIGS. 7 to 8, and the lift plate (53) rises via the lever (60). The valves (49) (50) are connected to the communication ports (44) (4
7) and communicate with each. Tubes (66) and (67) are connected to the lower portions of the vacuum valve (49) and the air valve (50), respectively, and the tubes (66) and (67) pass through a cable bear (68) and a vacuum source and a compressed air source (not shown). It is connected to the. The cable bear (68) can bend at any position in the vertical plane, and the moving body (1)
With the movement of 5), the moving body (15) is always bent at a position corresponding to the movement position with substantially the same radius of curvature so that an unnecessary force is not applied to the tubes (66) (67). .. The moving mechanism (15) is provided with a pair of engaging mechanisms (29), and the lifting plate (53) is also provided for each engaging mechanism (29), and the tubes (66) and (67) are provided respectively. They pass through the cable bear (68) one by one. Each of them may be combined into one tube at some position of the moving body (15) so that two tubes can pass therethrough.

The component supply base (10) is provided with two moving bodies (15), and the cable bear (68) of the moving body (15) not shown in FIG. It is provided in parallel at a position opposed to the component supply base (10) of FIG.

The valve (4) provided on the lifting plate (53)
The communication ports (44) and (47) connected to (9) and (50) are provided only in one set on the mounting table (11), and are related to which engagement mechanism (29) of the moving body (15). Even when they are combined, they are connected to the set of communication ports (44) and (47).

Next, the component supply device (9) will be described.

In the component supply device (9), the positioning pins (70) (70) provided on the lower part thereof are fitted into the positioning holes (71) (71) formed in the mounting table (11). When attached in this manner, the vacuum port (72) and the air port (73) provided in the lower part of the valve are connected to the vacuum valve (40) and the air valve (41), respectively.

In FIG. 13, (75) is a bulk case for accommodating the chip components (4) in a loose state, and is detachably attached to the upper part of the component supply device (9). The parts (2) in the bulk case (75) fall through the chamber (76) and line up in the chute (77).

Reference numeral (78) is a chamber compressed air supply hole provided in the lower portion of the chamber (76), and reference numeral (79) is a chute compressed air supply hole provided on the inlet side of the chute (77). Both supply holes communicate with the valve (80),
When compressed air is supplied from a compressed air source (not shown) by opening and closing the valve (80), compressed air ejected from the supply hole (78) shoots the chip part (2) accumulated in the chamber (76) ( 77) The compressed air blown off at the inlet so as not to be boring, and the compressed air ejected from the supply hole (79) acts so that the parts (2) aligned in the chute (77) move to the outlet side of the chute (77).

At the outlet of the chute (77), a rotor (83) notched with a groove (not shown) into which the part (2) is inserted in order to separate the part (2) from the chute (77).
Is provided. The rotor (83) intermittently rotates to separate the component (2) from the chute (77) and then moves the component to the suction position of the suction nozzle (4). The valve (80) is opened / closed by a valve opening / closing mechanism (not shown) that works in conjunction with a swing arm (82) described later.
3) It is performed in synchronization with the intermittent rotation.

The valve (80) communicates with the air port (73).

The rotor (83) swings by the feed lever (84) that reciprocates at the component take-out position. The swing of the swing arm (82) causes the rack (85) to rotate the pinion (86). The rotation of (86) is transmitted by being transmitted through the ratchet mechanism (87) and the rotor shaft (88).

When the chip component (2) housed in the groove is moved by the rotation of the rotor (83), it is vacuum-sucked downward and at the center of the rotor (83). 89) is opened and closed by a valve (90). The vacuum passage (89) is a vacuum port (72)
Is in communication with.

The vacuum passage (89) also has a chute (77).
The chip parts (2) which are communicated with each other through the vacuum suction hole (91) and are lined up in the chute (77) are connected to the chute (7).
7) The vacuum suction hole (9
The chip component (2) above 1) is sucked.

The operation will be described below with the above configuration.

First, each mounting table (11) on which a predetermined component supply device (9) is arranged is installed on the component supply table (10) via the moving body (15). That is, as shown in FIGS. 1, 2 and 4, the mounting table (11) is guided by the guide (18),
(19) Move on and position on the moving body (15). Then, the rod (34) of the cylinder (33) is retracted, and the engaging portion (32) is moved to the shaft (3) as shown by the solid line in FIG.
5) It is made to rotate centering and it is made to enter between a pair of rollers (30) (refer FIG. 5). Along with this operation, the cam (65) is rotated, the swing lever (60) is swung via the engagement roller (64), and the lifting plate (53) is moved by the biasing force of the spring (54). 8 to the state of FIG. As a result, the valves (49) (50) are connected to the communication ports (4
4) Connected to (47), the vacuum source and the compressed air source are supplied to the component supply device (9). Now you are ready. For example, as shown by the solid line in FIG.
0) two moving stands (15) on each of the two mounting tables (11)
Will be installed, and the same type of component supply device (9) will be arranged on the mounting table (11) on each moving body (15).

As shown in FIG. 2, one moving body (15)
Is moved to the right end so as not to hinder the movement of the other moving body (15).

The moving body (15) on one side is guided by the motor (22) along the screw shaft (20) along with the guide (16).
As the table is moved by the guide (17), the mounting table (11) also moves by being guided by the guides (18) and (19). The cable bear (68) through which the moving tubes (66) (67) pass also moves while changing the bending position at the same radius of curvature. As a result, the desired component supply device (9) is moved to the component removal position.

Next, the swing arm (82) is swung by the movement of the feed lever (84), and the rotor shaft (88) is rotated via the rack (85), the pinion (86) and the ratchet mechanism (87). The rotor (83) is rotated and the chip component (2) separated from the chute (77) is moved to the take-out position of the suction nozzle (4). This rotor (8
Before the rotation of 3) is started, the valve (80) is opened in conjunction with the swing of the swing arm (82), and the tube (66), the vacuum valve (49), the vacuum communication port (44) from the vacuum source,
Through the vacuum tube (43), the vacuum passage (42) and the vacuum valve (40), the vacuum passage (8) is passed through the vacuum port (72).
Vacuum suction of the chip component (2) housed in the groove (not shown) of the rotor (83) is performed by the negative pressure supplied to 9), and the chip component (2) separated and housed in the groove by the chute (77). ) Is attracted toward the center of the rotor (83) so as not to be bitten by the outlet of the chute (77), and is retained so as not to jump out of the groove.

Thereafter, the tube (6
7), air valve (50), air communication port (47), air tube (46), air passage (45), air valve (4)
Compressed air supplied from the air port (73) via (1) is opened by opening the valve (80).
8) sent to the chamber (76) and swirling the chip part (2) so as not to get bogged down, and the air supply port (7)
9) Chip parts (2) sent from chute (77)
To the outlet side to push the part into the groove of the rotor (83).

Thus, the suction nozzle (4) takes out the chip component (2) at the suction position.

Next, by the intermittent rotation of the turntable (1), the nozzle (4) sucking the component (2) is moved to the recognition station, and the posture of the component (2) is recognized by the recognition device (12). It

Based on the recognition result, the nozzle rotation device (13) rotates the nozzle (4) through the head (3) at the next nozzle rotation correction station to correct the deviation in the θ direction. The component whose displacement has been corrected is mounted at a predetermined position in the next mounting station in consideration of the displacement in the XY directions on the printed circuit board (6).

In the following, if any one of the component supply devices (9) on the mounting table (11) that is currently being used is loaded with components, and the component is out of stock, the moving body (15)
2 to the left end of FIG. 2, and this time, the moving body (15) which has been waiting at the right end until then is driven to continue the component supply operation for the nozzle (4). Then, during the feeding operation by the moving body (15) on the right side, the rod (38) of the mounting table (11) moved to the standby position at the left end by the cylinder (37) has the fitted portion ( 39) to fix the mounting table (11), and the operator removes the supply device (9) that is out of parts from the mounting table (11), and replaces the supply device (9) with the full parts. Can be installed.

Next, the type of the printed circuit board (6) on which the component (2) is mounted is changed, and the moving body (1) on the right side of FIG. 2 is changed.
When it becomes possible to supply components only by the component supply device (9) mounted on the left mounting table (11) engaged with (5), the mounting table (11) on the right side of the moving body (15). ) Is separated, but the separating operation will be described.

First, as shown in FIG. 2, when the moving body (15) is moved to the right position detected by a sensor (not shown), the cylinder (37) is moved above the moving body (15) in the same manner as described above. The mounting table (11) is fixed.

Next, the cylinder (33) or the rod (3) engaging the mounting table (11) on the right side of the moving body (15).
4) is projected and the engaging portion (32) is rotated from the position shown by the solid line in FIG. 4 to the position shown by the chain double-dashed line to release the engagement. Along with this operation, the swing lever (60) swings against the biasing force of the spring (54) from the state described above to the state shown in FIGS. 8 to 7, and the communication ports (44) (47) and the valve (49) and (50) leave.
As shown in FIG. 9, the valves (49) and (50) have a ring body (56) engaged with a valve stopper (57) to shut off air or vacuum leakage.

Next, the cylinder (37) which has locked the mounting table (11) on the left side of the moving body (15) pulls the rod (38) to release the lock. The mounting table (11) on the right side remains locked.

Next, the moving body (15) on the left side is on standby to the left as shown in FIG. 14, and when the moving body (15) on the right side is moved by the drive of the motor (22), it moves to the right side. Only the left mounting table (11) is moved, leaving the mounting table (11), and the component supply device (9) for supplying the desired component (2) is positioned at the component take-out position. It is taken out and mounted on the printed circuit board (6).

Next, a certain component supply device (9) runs out of components, and the mounting table (11) on the right side of the moving body (15) on the left side.
If the right mobile body (15) is moved to the right and waits, the left mobile base (15) is separated from the left mounting table (11) in the same manner as described above, and the parts are supplied. Done. Further, the leftmost and rightmost mounting tables (11) are separated, and the two center mounting tables (11) are moved by a moving body (1).
5) are simultaneously engaged, and the mounting table (11) is integrally moved by the movement of the movable body (15), and the component (2) is moved.
May be supplied. In this case, the mounting table (11) is engaged with the moving body (15) as described above.

In the present embodiment, the mounting table (11) is described to move only within the range of the component supply table (10), but the rails connected to the guide rails (18) and (19) are extended and mounted. The mounting table (11) can be stored in a storage device, the engagement mechanism (29) is released, and the movable body (15) and the mounting table (11) are engaged and communicated with each other (4).
4) Dismount the mounting table (11) by disengaging the (47) and the valves (49) (50) so that another mounting table (11) can be carried in instead of the component supply table (10). May be. In this case, it may be manually stored and carried in, or it may be carried out using a drive source.

Further, in the present embodiment, when the moving body (15) and the mounting table (11) are connected, the system of negative pressure for sucking compressed air and vacuum is brought into contact with and separated from each other. (11) Alternatively, the power supply for connecting to the component supply device (9) or the wiring of the signal line for attaching a sensor also has communication ports (44) (47) and valves (49) (5).
Instead of 0), a connector (94) with a pin (93) having a wiring cord (92) as shown in FIG. 15 and a connector (95) connectable to the connector (94) may be used.

Further, when the device for supplying the chip components encapsulated in the tape to the suction position is arranged on the mounting table (11) instead of the component supply device (9) of this embodiment, the above wiring is also provided. Similarly, in the case of using the air pressure and the vacuum pressure, the moving body (15) is wired to the moving body (15) in the same manner.
The wiring between the mounting table (11) and the mounting table (11) can be connected and separated.

[0057]

As described above, according to the present invention, the object to be transmitted is supplied to the mounting table connected to the moving body by the contacting / separating means by the transmitting means connected to the moving body. It is possible to prevent the transmission means from interfering with each other so that an unreasonable force is not applied.

[Brief description of drawings]

FIG. 1 is a perspective view of a component supply table.

FIG. 2 is a plan view of a component mounting device.

FIG. 3 is a partially cutaway front view of the component supply table.

FIG. 4 is a side view showing an engagement mechanism.

FIG. 5 is a plan view showing an engagement mechanism.

FIG. 6 is a plan view showing a mounting table.

FIG. 7 is a side view showing an engagement mechanism.

FIG. 8 is a side view showing an engagement mechanism.

FIG. 9 is an enlarged view showing a vacuum valve. .

FIG. 10 is an enlarged view showing a vacuum valve. .

FIG. 11 is a front view showing an engagement mechanism.

FIG. 12 is a front view showing an engagement mechanism.

FIG. 13 is a diagram showing a component supply device.

FIG. 14 is a plan view showing a component mounting device.

FIG. 15 is a diagram showing connection of wiring cords.

[Explanation of symbols]

 (9) Parts supply device (10) Parts supply table (11) Mounting table (15) Moving body (22) Motor (29) Engagement mechanism (44) Vacuum communication port (47) Air communication port (49) Vacuum valve ( 50) Air valve (51) Guide body (52) Lifting rod (53) Lifting plate (54) Spring (60) Swing lever (62) Engaging roller (63) Protrusion (64) Engaging roller (65) Cam ( 66) Tube (67) Tube (92) Wiring cord (94) Connector (95) Connector

Claims (1)

[Claims] 1. A mounting table on which a large number of component supply devices for supplying chip components are mounted, and a movable body that is moved in a direction in which the component supply devices are arranged in parallel with each other while being connected to a connecting portion of the mounting table. In a component mounting device that picks up a chip component supplied from a component supply device moved by the movement of a moving body with a take-out tool and mounts it on a printed circuit board, on the mounting table for the component supply device connected to the moving body. Transmission means for transmitting a transmitted object to be used, a delivery port connected to the transmission means for delivering the transmitted article from a moving body, and a receiving port provided on a mounting table for receiving the transmitted article from the delivery port And a contacting / separating means for contacting / separating the receiving port and the delivery port.