JPH0777306B2 - Parts mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus, and more specifically, an intermittent rotation support member equipped with a suction nozzle for suctioning and transferring a component, and suctions a predetermined component to a suction nozzle at a certain position. The present invention relates to a component mounting apparatus of a type for holding and transferring the component onto an object to be mounted, and then mounting the component to the object to be mounted. It is used to attach to.

2. Description of the Related Art The electronic components are not only flat type (square type) and round type, but are flat type only, with dimensions of 40 mm x 40 mm.
A large number of types, such as 1.5 mm x 0.8 mm, have come to be used, and a suction nozzle suitable for each part to selectively suck and hold, transfer and mount them with one device. Japanese Patent Application Laid-Open No. 59-113699 discloses a method in which the suction transfer and mounting of components can be reliably performed by selectively using.

This one has a turn holder that is repeatedly moved from a component receiving position to a component mounting position, and this turn holder is appropriately driven by a suction nozzle selecting rotating means to select among a plurality of types of suction nozzles equipped on the turn holder. A predetermined one is selected and used.

Problems to be Solved by the Invention Various electronic components including the above-mentioned minute components are sucked and held by a suction nozzle adapted to each of them, and transferred.
The positional relationship between the suction nozzle and the electronic component must be set more accurately. For example, when holding a small electronic component by suction using a small suction nozzle that fits it, it is convenient to mount the component on the electronic circuit board in a narrow area corresponding to the small electronic component. Is large, and air leakage easily occurs in the component suction state due to a slight positional deviation, and the component may fall.

However, in the method of switching the suction nozzles by rotating the turn holder, it is difficult to properly position each suction nozzle in the use position, and complicated positioning is required for proper positioning.
An expensive switching mechanism is needed. Further, since the rotary switching of each suction nozzle is performed in a state in which further rotation is allowed except for a specific case, the positioning operation means movable between the positioning position and the non-positioning position is required. However, since the rotational inertia greatly affects the stability of the positioning operation, rapid switching cannot be expected.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a plurality of types of component suction transfer for each of the equidistant positions corresponding to the intermittent rotation pitch of the support around the intermittent rotation support. The suction nozzle is provided so as to slide back and forth in the radial direction between the use position and the non-use position, and a nozzle switching means for selectively advancing the plurality of kinds of suction nozzles to the use position is provided. Characterize.

The sliding movement of the suction nozzles may be performed individually, in groups, or as a whole by various driving means such as an air cylinder or a solenoid. It goes without saying that the driving means may be of a type other than the reciprocating type.

The suction nozzles for multiple types, which are installed at each equidistant position around the working intermittent rotation support, are swung by the intermittent rotation support, and a predetermined one is selectively used by the operation of the nozzle switching means on the way. It is slidably advanced to the position, sucks and holds the corresponding component, and transfers it to the component mounting position. The previously used suction nozzle is slid back to the non-use position by the operation of the nozzle switching means when the predetermined suction nozzle slides into the use position. In short, the plurality of suction nozzles are slidably moved back and forth between the use position and the non-use position by the nozzle switching means to switch the one to be used.

Embodiment FIG. 1 and FIG. 2 show an embodiment in the case of a system in which a plurality of suction nozzles are entirely slid and switched.

As shown in FIG. 1, an intermittent rotation support body 1 which is intermittently rotated about a vertical axis is formed by forming a plurality of radial arms 1a corresponding to the intermittent rotation pitch of the support body 1, and each arm thereof. Two suction nozzles 2 and 3 of different types are provided at the tip of 1a. Each arm 1a
The upper suction nozzles 2 and 3 are arranged in the radial direction of the support 1 and are held by a slide holder 4 incorporated in the arm 1a so as to be slidable in the radial direction, and the air cylinder is connected to the holder 4. By sliding the holder 4 forward and backward by means of 5, the two suction nozzles 2 and 3 are alternatively positioned at the use position A.

The suction nozzles 2 and 3 are vertically movably inserted into the holder 4 as shown in FIG. 2 and project above and below the arm 1a through the elongated holes 1b thereof to act between the holder 4 and the spring.
Upward bias is given by 15. An advance / retreat guide portion 1c for the holder 4 and advance / retreat stop stoppers 1d, 1e are provided in the tip portion of the arm 1a.

The suction nozzles 2 and 3 set to the use position A on the arm 1a are intermittently rotated by the intermittent rotation of the support 1 on the same swirl path by the arrangement pitches thereof, and a common stop position. Are successively advanced to. Under the rear stop position S1 of each of the stop positions, an X-direction moving table 6 that is reciprocally moved in the X direction is provided for side-by-side arrangement of component supply cassettes for individually supplying various components. Below the stop position S4, an XY direction moving table 7 that is moved in the X direction and in the Y direction orthogonal to this is provided as a position adjusting mounting table for the electronic circuit board 8.

Above the stop positions S1 and S4, the suction nozzles 2 or 3 set in the use position A are temporarily moved downward by a predetermined amount against the spring 15 for picking up and mounting components. Lever mechanisms 9 and 10 are provided. Further, above the stop position S3 before the stop position S4, a nozzle rotating mechanism 12 for temporarily contacting the upper end passive part 11 of the suction nozzle 2 or 3 set to the use position A and frictionally rotating it. Is provided to change or correct the mounting direction of the component. Although not shown, other stop positions S2, S
5, S6 is also a means for positioning the component with respect to the suction nozzles 2 and 3, a means for detecting the orientation or position of the component,
Further, means for discharging defective parts and the like are provided as necessary.

Since the suction nozzles 2 and 3 may be rotated, the suction pipe line 13 is connected to the nozzles 2 and 3 through a collar 14 that rotates freely.

A series of operations will be described below. The suction nozzles 2, 3
Depending on the parts to be received next before the stop position S1 is reached, the operating position A is set by the operation of the air cylinder 5.
The selected suction nozzle 2 or 3 set to
Picks up a predetermined component selectively given by the movement of the X-direction moving table 6 at the stop position S1, reaches the stop position S4 via each stop position S2, S3, and moves in the XY direction by the XY direction moving table 7. The pickup component is mounted at a predetermined position on the adjusted electronic circuit board 8.

FIG. 3 shows another embodiment, in which the tip of the arm 1a of the intermittent rotation support 1 is equipped with three suction nozzles 21, 22, 23. Each nozzle 21, 22, 23 is slidably moved back and forth between the use position A and the non-use position independently of each other by solenoids 27, 28, 29 individually connected to respective holders 24, 25, 26. Each of the advance / retreat directions is a radial direction from the same use position A, and each holder 24, 25, 26 is guided by the guide 30. Each nozzle 2
The forward / backward strokes of 1, 22, 23 are restricted by the long holes 1f, 1g, 1h of the arm 1a from which the nozzles 21, 22, 23 project.

In the case of this embodiment, the suction nozzles 21, 22, 23 are selectively advanced to the use position A by first sliding the nozzle in the use position back to the non-use position and then using the predetermined nozzle. Position A
It is done by sliding it to.

In the above embodiment, the suction nozzle is positioned at the use position on the nozzle side, but the invention is not limited to this. For example, stroke regulation of the air cylinder on the drive means side or the solenoid itself can be performed.

EFFECTS OF THE INVENTION According to the present invention, by selectively moving a plurality of types of suction nozzles to the use position and selectively using the one corresponding to the handling component, the switching movement of the suction nozzle to the use position is performed. Since the sliding advance / retreat method is used, positioning to the use position is
It is made accurate by simple stroke regulation by the fixed positioning means at the end of sliding, which makes the device simple in structure and inexpensive, and the suction nozzle used is precisely opposed to the component sucking it, and even small parts can be air-conditioned. It can be securely adsorbed and transferred without leakage. Furthermore, since the movement inertia of the suction nozzle has little influence on the positioning by the fixed positioning means, the suction nozzle used can be switched quickly, and the component mounting apparatus can be speeded up.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a partially enlarged sectional view, and FIG. 3 is a partial plan view of another embodiment of the present invention. 1 ... Intermittent rotation support 2, 3, 21, 22, 23 ... Suction nozzle 5 ... Air cylinder (nozzle switching means) 27, 28, 29 ... Solenoid (nozzle switching means).

Claims (1)

[Claims] 1. A plurality of types of suction nozzles for sucking and transferring components are provided around each of the intermittent rotation supports at equal positions corresponding to the intermittent rotation pitch of the support, between the use position and the non-use position. A component mounting apparatus, which is provided so as to slide back and forth in a direction, and is provided with nozzle switching means for selectively advancing a plurality of types of suction nozzles to a use position.