JPH0620678B2 - Parts mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for automatically mounting components such as electronic components on a work such as a circuit board.

2. Description of the Related Art Conventionally, a component mounting apparatus for automatically mounting electronic components on a circuit board generally supplies a circuit board onto an XY table by a transfer device and mounts the electronic components on the circuit board using the XY table. The position to be sequentially positioned at a predetermined mounting position, while a plurality of component aggregates or component supply units in which a plurality of component feeding units are arranged side by side supplies electronic components to be mounted sequentially to a predetermined component removal position, A mounting head capable of holding an electronic component is reciprocally moved between a component take-out position of a component supply unit and a predetermined mounting position above an XY table, and the electronic component held by the product supply unit is moved to a predetermined position of a circuit board. It is configured to be worn.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above configuration, the mounting head may be reciprocally moved between two predetermined positions, but it is necessary to perform positioning control in two directions of the X direction and the Y direction on the circuit board. Therefore, the structure becomes complicated, and it takes time to search for a desired electronic component to be mounted next in the component supply unit and operate it so that it is located at a predetermined component extraction position, resulting in poor component mounting efficiency. There was a problem. In addition, since it is necessary to monitor the mounting work on the circuit board in order to cope with mounting mistakes, it has been impossible to perform the automatic work even outside working hours.

In view of the above-mentioned conventional problems, the present invention provides a component mounting apparatus which has a simple structure and has a high component mounting efficiency, and which is capable of automatically performing a part of the work unattended outside working hours. To aim.

Means for Solving the Problems In order to achieve the above object, the present invention provides a component supply means,
Work holding means for holding the work, and mounting means arranged to be relatively positionable in the horizontal plane with the work holding means, holding the component supplied from the component supply means, and mounting the component on the work. In the provided component mounting apparatus, the component supply means includes a first component supply means capable of accommodating / removing the components in an aligned manner and holding the same, and a second component supply means capable of sequentially removing the components. Is characterized by.

Further, the work holding means is arranged to be movable and positionable in one direction, and the mounting means is arranged to be movable and positionable in a direction orthogonal to the moving direction of the work holding means.

Effect Since the present invention has the above-mentioned configuration, the work is held by the work holding means that conveys the work or the jig for holding the work, so that the component mounting position is positioned in one direction and mounted on the movement path. By positioning the means, the component mounting position in the direction orthogonal to the one direction can be positioned, and the required component can be selected depending on the stop position of the mounting means on the component supply means. Therefore, since it is possible to position the component mounting position and select the component by the moving mechanism of the work holding means and the mounting means,
The configuration is simple. Further, the parts are taken out from the second part supplying means in the order of mounting the parts, aligned and accommodated in the first part supplying means, and the parts are taken out from the first part supplying means and mounted on the work. By doing so, the take-out speed of the parts is increased, and high-speed mounting is possible. Further, the parts are automatically transferred from the second part supply means to the first supply means outside the working hours, and the parts are mounted on the workpiece from the first part supplying means during the working hours. If this is done, the productivity will be further improved.

Embodiment One embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, area A for component mounting
A work transfer means 3 for transferring the jig 2 for holding the work 1 such as a circuit board in the X direction is disposed at one end in the Y direction of the. The work transfer means 3 includes a guide 4 for movably supporting the jig 2, a feed screw 5 and a drive motor 6 for the feed screw 5 arranged in parallel to the side of the guide 4, and as shown in detail in FIG. A pair of engaging members 8a and 8a that move with the rotation of the feed screw 5 and that can engage and disengage from the jig 2.
It is composed of a moving body 7 provided with b. The engaging members 8a and 8b are provided so as to project from the tip of a swing arm 9 fixed to the rotary shaft 10, and the rotary shaft 10 is configured to rotate by a cylinder device 11 and a lever 12.

A gate-type guide rail 13 is provided extending over the center of the work transfer means 3 and extending to the other end in the Y direction. The guide rail 13 constitutes a movement path in the Y direction orthogonal to the X direction which is the conveyance direction of the work conveyance means 3, and a mounting means 14 movable along the movement path 13 is provided. There is.

The mounting means 14 comprises a pair of mounting heads 16 which can be rotated 180 ° and can be reversed and switched on a movable carriage 15 which can be fed by itself along the guide rails 13. Each mounting head 16 is shown in detail in FIG. As shown in FIG. 3, a mounting shaft 17 that can be raised and lowered and rotated is provided, and a turret 18 to which a plurality of holders 19 that hold different parts are attached is attached to the lower end portion thereof. In FIG. 3, 20 is a screw mechanism for moving up and down the mounting shaft, 21 is a drive motor thereof, and 22 is a rotating device for the mounting shaft.

As shown in FIG. 4, a plurality of anvils 24 are provided in the lower part of the center of the work transfer means 3 so as to face the holders 19 arranged on the turret 18 of the mounting head 16. The unit 23 is arranged by a guide rod 25 so as to be movable in the Y direction. The mounting means 14
When is located at the reference position on the work conveying means 3, a clutch body 26 is provided which is coupled to the mounting means 14 and can be separated from the fixed side held until then. The clutch body 26 and the anvil unit. 23 are connected to each other by a connecting cable 29 via an interlocking mechanism consisting of a rotatable pinion 27 and a pair of racks 28 that mesh with both sides of the pinion 27, and the mounting means 14 and the anvil unit 23 are interlocked in the same direction in the same amount. Configured to move.

A tray feeder 30 as a first component supply means is disposed adjacent to the other end side of the work transfer means 3 in the Y direction. A large number of component storage spaces are formed in the tray 31 of the tray feeder 30 so as to be aligned in the X and Y directions, and components can be accommodated in and taken out from the component storage spaces. The tray 31 is mounted on the slide rail 32 by X.
It is movably supported in parallel with the direction and is configured to be connectable to the moving body 7 by a clutch mechanism 33 such as a magnet clutch.

On the other end side of the tray feeder 30 in the Y direction, a multiple loop feeder 34 is arranged as a second component supply means, in which a large number of loop feeders 35 for supplying loose components are arranged in parallel. Details of the multiple loop feeder 34 are disclosed, for example, in Japanese Patent Laid-Open No. 56-78533.
Further, on the other end side in the Y direction of the multiple loop feeder 34,
Similarly, as the second component supply means, a well-known component supply device 36 using a tape-shaped component assembly in which components are housed in a tape-shaped holder or a stick-shaped component assembly in which many components are housed in a stick is provided. Has been done. Further, the component supply device 36 is arranged on one side in the X direction of the moving path 13, and on the other side, an index table 37 holding a plurality of turrets 18 to which various holders 19 are attached is arranged. .

In the above configuration, prior to the component mounting, the multiple component loop feeder 35, which is the second component supply unit, the component supply device 37 that uses the tape-shaped component assembly, and the like, are replaced by the tray feeder, which is the first component supply unit. The components are aligned and held with respect to 30 in the component mounting order. Next, the moving body 7 of the work transfer means 3 is moved to the one end side in the X direction, and the
After engaging the engaging member 8a with the jig 2 sent to the side portion of the area B adjacent to, the moving body 7 is moved toward the center of the guide 4 to move the jig 2 to the work transfer means 3 It is located approximately in the center. In this state, the moving body 7 and the tray 31 of the tray feeder 30 are coupled via the clutch mechanism 33, the tray 31 is moved by the moving body 7, and the component to be mounted is Y of the holder 19 of the mounting means 14. Position on the moving path of the direction. Next, the mounting means 14 is moved and the holder 19 holds the component to be mounted from the accommodation space of the tray 31. Next, the moving body 7 is moved again, the component mounting position of the work 1 on the jig 2 is positioned on the movement path of the holder 19 in the mounting means 14 in the Y direction, and then the mounting means 14 is moved. The holder 19 is positioned at a predetermined component mounting position on the work 1, and the held component is mounted. When the component mounting operation described above is repeated and the component mounting on the work 1 is completed, the jig 2 and the engaging member 8a are disengaged to move the moving body 7, and the other engaging member 8b is moved to the jig 2. After moving the movable body 7 to the other end in the X direction of the area A, the jig 2 is moved by the work transfer means arranged in the adjacent area C, and moved. The body 7 returns to the one end side in the X direction again, and the above operation is repeated. When the components housed in the tray feeder 30 are used up, the components are again housed in the tray feeder 30 which is the first component supplying means from the second component supplying means. This operation can be automatically performed unattended during non-working hours, for example.

When the component has a lead wire and the lead wire is inserted into the hole formed in the work 1 at the time of mounting and the lead wire is bent by the anvil 24 on the back surface,
During the component mounting operation, the mounting means 14 is once positioned at the central reference position of the work transfer means 3, the clutch body 26 is actuated to connect to the mounting means 14, and the anvil unit 23 and the mounting means 14 are interlocked for mounting. Sometimes, the anvil 24 allows bending of the lead wire of the component. In addition, the anvil unit 23 synchronizes with the rotation of the turret 18 having the plurality of holders 19, and the plurality of anvils 2 are provided.
The turret 25 having the number 4 rotates and the anvil 24 moves up and down in synchronization with the mounting operation.

Further, since the mounting means 14 is provided with a pair of mounting heads 16, if any one of the holders 19 fails during the mounting operation using one mounting head 16, the mounting head 16 is moved to the other. By switching, the mounting operation can be continued immediately, and the time loss in case of failure can be significantly reduced.

Further, when the model of the work 1 is changed, the mounting means 14 is moved to the other end in the Y direction of the movement path 13 and is replaced by another turret 18 held on the index table 37. be able to.

In the above embodiment, the tray feeder 30 in which the movable body 7 of the work transfer means 3 is used as the first component supply means to perform positioning in the X direction via the clutch mechanism 33 is exemplified. Means for moving and driving may be separately provided. Further, not limited to the tray feeder 30, an endless belt type component holder having a large number of aligned component storage spaces may be configured to be rotatable. Also, a combination of the multiple loop feeder 34 for supplying loose parts as the second part supply means and the part supply device 36 using a tape-shaped or stick-shaped parts assembly has been exemplified, but what kind of parts It may be a supply means.

Further, in the above embodiment, the mounting means 14 is exemplified as a self-propelled type which moves along the movement path 13. However, in such a configuration, the movement path 13 can be divided and connected corresponding to each component supply means. With the above configuration, the movement path 15 having an arbitrary length can be configured according to the installation space of the component supply means, and the space in the area A can be minimized. However, in addition to the movement path 13 of the mounting means 14, the mounting means 1
Driving means such as a feed screw mechanism for moving and driving 4 may be arranged in parallel.

Further, as shown in FIG. 5 and FIG. 6, a plurality of trays 31 can be used as a tray feeder when a large number of components are stored in the mounting order and the components are continuously mounted for a long time.
And a tray 31 in which parts are accommodated
It is preferable to use one that is stored in a stacked state and is sequentially sent to the transfer section 39, and an empty tray is stored in the empty tray stock section 40.

Further, while the component is taken out from the first component supply means and mounted, at the same time, the component transfer means movable along the movement path with respect to the first component supply means causes the second component supply means to move. The components may be selected and supplied in the order of mounting.

Further, in the above-described embodiment, an example in which the jig conveying means and the positioning means are shared is shown, but as shown in FIG.
A chain conveyor 41 is used as a conveying means of the same, and a feed screw shaft 5 and a moving body 7 similar to those in the above-mentioned embodiment are used as a positioning means.
It is also possible to adopt a configuration using. In FIG. 7, 4
2 is a stopper that stops the transfer of the chain conveyor at a predetermined position.

EFFECTS OF THE INVENTION According to the component mounting apparatus of the present invention, as described above, the component holding position and the mounting component can be selected by the movement mechanism of the work holding means and the mounting means, so that the configuration is simplified. Further, the parts are taken out from the second part supplying means in the order of mounting the parts, aligned and accommodated in the first part supplying means, and the parts are taken out from the first part supplying means and mounted on the work. By doing so, the take-out speed of parts is increased, high-speed mounting is possible, and productivity is improved. Further, the parts are automatically transferred from the second part supply means to the first supply means outside the working hours, and the parts are mounted on the workpiece from the first part supplying means during the working hours. If this is done, there is an effect that the productivity can be further improved.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention, FIG. 1 is an overall plan view, FIG. 2 is a perspective view showing a schematic structure of a jig conveying means, and FIG. 3 is a main part of a mounting means. A perspective view showing a schematic configuration,
FIG. 4 is a schematic configuration diagram of a connecting mechanism between the mounting means and the anvil unit, FIGS. 5 and 6 are perspective views of a modification of the tray feeder, and FIG. 7 is a schematic configuration of a modification of the jig conveying means. It is a perspective view. 1 ...... Work 2 ...... Jig 3 ...... Work transfer means 13 ...... Guide rail (moving path) 14 ...... Mounting means 19 ...... Holding tool 30 ...... Tray feeder (first component supply means) 34 ...... Multiple loop feeder (second component supply means) 36 ... Component supply device (second component supply means).

Claims (5)

[Claims] 1. A component supply means, a work holding means for holding a work, and a work holding means arranged so as to be capable of being positioned relative to each other in a horizontal plane, and holding the parts supplied from the component supplying means, In a component mounting apparatus including a mounting unit configured to mount a component on a work, the component supply unit can sequentially take out a component and a first component supply unit capable of accommodating and retaining the component so that the component can be housed and retrieved freely. A component mounting apparatus comprising a second component supply means. 2. A work holding means is arranged so that it can be moved and positioned in one direction, and a mounting means is arranged so that it can be moved and positioned in a direction orthogonal to the moving direction of the work holding means. The component mounting apparatus according to claim 1. 3. The component mounting apparatus according to claim 2, wherein the first component supply means is a tray feeder that is movable in a direction orthogonal to the moving direction of the mounting means. 4. The component mounting apparatus according to claim 3, wherein the tray feeder is connectable to and disconnectable from the work holding means via a clutch mechanism. 5. The component mounting apparatus according to claim 4, wherein the work holding means is a work conveying means.