JPH0731598Y2 - Suction head for chip-shaped circuit component mounting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting chip-shaped circuit components on a substrate, which is used for adsorbing the chip-shaped circuit components on a template and moving and arranging them on the circuit board. Regarding the head.

[0002]

2. Description of the Related Art Conventionally, when a chip-shaped circuit component is mounted at a predetermined position on a circuit board, it has been carried out by the following method using a device shown in FIG. That is, the chip-shaped circuit components stored in bulk in the plurality of storage containers 1 are connected to the pipe-shaped chute 21 and the base plate 3.
One by one is taken out by the guide means 2 constituted by and is sent to the storage container 61 provided at a predetermined position on the template 6 inserted under the base plate 3 and received there. The storage container 61 is arranged in accordance with the position where each chip-shaped circuit component is mounted on the circuit board 9. Subsequently, the template 6 moves from below the base plate 3 to below the suction unit 8. Adsorption nozzles (see FIGS. 7 and 8) are provided on the lower surface of the adsorption unit 8 corresponding to the positions of the storage containers 61, 61 ... And the tip of the nozzles is maintained at a negative pressure. And the storage container 6
The chip-shaped circuit components a, a ...
It is adsorbed and held on the tip of the adsorption head in the stored position. In FIG. 6, reference numeral 81 is a suction duct of the suction unit 8 that is connected to a vacuum pump (not shown) to maintain the tip of the suction nozzle at a negative pressure. After the suction unit 8 moves up and the template 6 retracts from below, the suction unit 8 moves down and the chip-shaped circuit component a sucked and held by the tip of the suction head is mounted on the circuit board 9. As a result, the respective chip-shaped circuit components are mounted on the circuit board 9 at predetermined positions. In FIG. 6, reference numeral 7 indicates a conveyer that conveys the circuit board 9.

It should be noted that the circuit board is preliminarily coated with an adhesive at a position where the chip-shaped circuit component is to be mounted, and the mounted circuit component is soldered while the circuit component is temporarily fixed with this adhesive. . In the conventional suction head 8 used in such an apparatus, as shown in FIG. 7, the suction nozzles 85 are respectively projected from the main body of the suction head 8 in accordance with the position where the chip-shaped circuit component a is to be sucked. Had been set up. Then, as shown in FIG. 8, in order to attach the suction nozzle 85, attachment holes 87, 87 which also serve as nozzle attachment holes in advance in the main body of the adsorption head 8 are aligned with the position where the chip-shaped circuit component a is to be adsorbed. The suction nozzle 85 is attached to the suction head 8 by punching holes and fitting pins 86, 86 protruding from the upper portion of the suction nozzle 85 into the mounting holes 87, 87.

Such a suction nozzle 85 hits the tip-shaped circuit component a when the tip-shaped circuit component a is sucked onto the tip or when the sucked chip-shaped circuit component a is placed on the circuit board. Receive. For this reason, in the conventional suction head 8, the suction nozzle 85 is made of an elastic material such as rubber, and the elasticity thereof relaxes the impact on the tip.

[0005]

However, in the conventional suction head 8, since the suction nozzle 85 is made of rubber, it becomes hard and brittle over time.
It had the drawback of lacking in durability. Further, since the chip-shaped circuit component a is easily attached to the tip of the suction nozzle 85 and the chip-shaped circuit component a is not easily separated, when the chip-shaped circuit component a is mounted on the circuit board, the chip-shaped circuit component a
It is easy to cause a problem that is attached to the tip of the suction nozzle 85 and is not mounted on the circuit board. SUMMARY OF THE INVENTION The present invention has been made in view of such problems in the related art, and an object of the present invention is to provide a suction head which has excellent durability and strength and can be mounted on a substrate reliably.

[0006]

[Means for Solving the Problems] That is, the gist of the means adopted in the present invention to achieve the above object is as follows.
A suction head body 14 having a nozzle 16 for sucking the chip-shaped circuit component in accordance with a position on the substrate on which the chip-shaped circuit component is mounted, the suction head main body 14 having a suction duct 15 connected thereto, A nozzle 16 having an air passage extending from the tip to the base end, which is inserted into the nozzle mounting hole 12 formed in the lower surface wall 11 of the suction head body 14, and housed in the suction head body 14, the base end side of the nozzle 16. And a breathable elastic member (13) for pressing downward.

[0007]

In the suction head, there is a breathable elastic member 13 behind the suction nozzle 16, and this cushions the shock received at the tip of the suction nozzle 16. Therefore, it is not necessary to form the suction nozzle 16 with an elastic body such as rubber,
It can be formed of a hard body such as a synthetic resin. Therefore,
A suction head having a high strength and durability and a suction nozzle 16 at the tip of which the chip-shaped circuit component a hardly sticks can be obtained. Since the elastic member 13 has air permeability, the tip of the suction nozzle 16 can be maintained at a negative pressure from the suction duct 15 side through the air passage 18 of the suction nozzle 16.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIGS. 1 to 3, the suction head main body 14 has a thin box shape, the lower surface of which is open, and the elastic member 13 having air permeability from the opening to the inside thereof.
Is accommodated, and the lower surface wall 11 is attached so as to close the opening. A suction duct 15 is connected to the suction head body 14, and the suction duct 1
5 communicates with the inside of the suction head body 14.

A nozzle mounting hole 12 is formed in the lower surface wall 11 of the suction head body 14 in accordance with the mounting position of the chip-shaped circuit component a, and a suction nozzle 16 is fitted in the nozzle mounting hole 12. . The suction nozzle 16 is
A flange portion 17 is provided on the base end side, and an air passage 18 is opened from the tip to the base end. The flange portion 17 contacts the upper surface of the lower surface wall 11, and the suction nozzle 16
Of the suction nozzle 16 from the nozzle mounting hole 12, and the elastic member 13 contacts the flange portion 17 of the suction nozzle 16
Is pushing downwards.

Therefore, the suction nozzle 16 is normally pushed by the elastic member 13 so that the flange portion 17 contacts the upper surface of the lower surface wall 11 as shown in FIG. 1, but as shown in FIG. When the tip end receives a force indicated by an arrow through the chip-shaped circuit component a, the suction nozzle 16 rises against the elasticity of the elastic member 13. Also, the elastic member 1
Since 3 has air permeability, the tip of the suction nozzle 16 can be maintained at a negative pressure from the suction duct 15 side through the air passage 18 of the suction nozzle 16. The elastic member 13 as described above can be formed of a porous foaming resin. Further, the suction nozzle 16 can be formed of a hard resin having high deformation resistance and high wear resistance.

FIG. 4 and FIG. 5 show another embodiment of the present invention. That is, FIG. 4 shows an example in which a perforated plate 19 in which a large number of through holes 20 are perforated is provided in the suction head main body 14, and the elastic member 13 is inserted under the perforated plate 19. In addition, FIG.
A concave portion is formed in the upper surface portion of the lower surface wall 11 around the nozzle mounting hole 12, and the flange portion 17 of the suction nozzle 16 is fitted therein. The present invention is not limited to the above-described embodiment, and for example, the lower surface wall 11 of the suction unit body 14 is integrated, the upper surface side is open, and the upper surface is closed by the upper surface wall to which the suction duct 15 is connected. May be However, in the case where the lower surface wall 11 can be attached to and detached from the suction unit body 14, it is convenient to replace the lower surface wall 11 with a different drilling pattern of the nozzle mounting holes 12 because the mounting pattern of the chip-shaped circuit component a can be changed.

[0012]

As described above, according to the suction head of the present invention, the strength and durability are high and the chip-shaped circuit component a
It is possible to provide a suction head that can reliably face the circuit board.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part of a suction head according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a main part of a suction head according to an embodiment of the present invention.

FIG. 3 is an exploded perspective view from the bottom side of the suction head according to the embodiment of the present invention.

FIG. 4 is a vertical sectional side view of a main part of a suction head according to another embodiment of the present invention.

FIG. 5 is a vertical sectional side view of a main part of a suction head according to another embodiment of the present invention.

FIG. 6 is a perspective view showing an example of a chip-shaped circuit component automatic mounting apparatus.

FIG. 7 is a side view of a main part of a conventional suction head.

FIG. 8 is a sectional view of a main part of a conventional suction head.

[Explanation of symbols]

 11 Lower Surface Wall 12 Nozzle Mounting Hole 13 Elastic Member 14 Suction Head Main Body 15 Suction Duct 16 Suction Nozzle

Claims (1)

[Scope of utility model registration request] 1. A suction head provided with a nozzle 16 for sucking the chip-shaped circuit component in accordance with a position on a substrate on which the chip-shaped circuit component is to be mounted, the suction head having a suction duct 15 connected thereto. A main body 14 and a nozzle mounting hole 12 formed in a lower surface wall 11 of the suction head main body 14.
A nozzle 16 having an air passage extending from the tip to the base end, and housed in the suction head body 14.
A suction head for a chip-shaped circuit component mounting device, comprising: a breathable elastic member 13 that presses the base end side of the nozzle 16 downward.