JPH0321118B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a component mounting device, and is used, for example, to mount chip-type resistors and chip-type multilayer capacitors onto electronic circuit boards.

BACKGROUND TECHNOLOGY Electronic components such as those mentioned above come in a wide variety of sizes, ranging from 40 mm x 40 mm to 1.5 mm x 1.8 mm, as well as flat (square) and round shapes. In order to selectively suction, hold, transfer, and mount these parts, a suction nozzle suitable for each part is selected and used to suction, transfer, and mount the parts. A technique that can be used reliably is known from Japanese Patent Laid-Open No. 113699/1983.

This device has a turn holder that is repeatedly moved around from a component receiving position to a component mounting position, and this turn holder is appropriately driven by a suction nozzle selection rotation means to select among multiple types of suction nozzles equipped on the turn holder. The suction nozzles are simply selected and used, and there is no connection with other adjustment means, and each suction nozzle is held by the turn holder so as not to rotate.

Problems to be Solved by the Invention In the conventional device described above, it is only possible to selectively use a plurality of types of suction nozzles for suction transfer and mounting of parts by appropriately rotating the turn holder, and no other adjustments are made. . In particular, even if it is desired to mount electronic components on an electronic circuit board at various angles, it is difficult to do so because each suction nozzle cannot rotate.

Means for Solving the Problems The present invention has a turn holder arranged and held on the outer periphery of an intermittent rotation support body corresponding to the pitch of the intermittent rotation, and a plurality of types of suction nozzles are attached to each turn holder for rotation. a nozzle selection means for selecting a suction nozzle to be used by rotationally driving the turn holder in accordance with each stop position on the movement path by the intermittent rotation support of the turn holder;
a component supply means for supplying and suctioning and holding a component to a selected suction nozzle; a position detection means for detecting the angular position of the component held by the suction nozzle;
Nozzle rotation means for setting or correcting the angular position of the component based on the position detection data at each time by rotationally driving a suction nozzle that is suctioning the component, are sequentially arranged in the rotational direction of the intermittent rotation support. It is characterized by what it did.

Function: Each turn holder is moved intermittently in circulation by the intermittent rotating support, and the suction nozzle selected in response to the operation of the nozzle selection means adsorbs the corresponding type of component at the component receiving part. Hold it, transport it to the component mounting position, and mount it. Further, the transferred component is subjected to angular position detection by the position detecting means and setting or correction of the mounting angular position by the suction nozzle rotating means.

Embodiment As shown in FIGS. 1 and 2, on the outer periphery of an intermittent rotation support 1 that is intermittently rotated around a vertical axis,
A plurality of turn holders 2 are rotatably held around a vertical axis at pitches corresponding to the pitches of the intermittent rotation of the intermittent rotation support 1. A plurality of types of suction nozzles 3, 4, 5, and 6 are rotatably held on the outer periphery of the turn holder 2. At the parts receiving position S1 corresponding to the rear stop position on the circulation path of each turn holder 2 by the intermittent rotation support 1,
An X-movement table 7 that is reciprocated in the X-direction and the FIG. An XY moving table 9 that is moved in the Y direction, which is the front and back of the table, is provided for placing an electronic circuit board 10 thereon.

Component receiving position S1 in the rotational direction of the support 1
Y-direction position regulating means 12 for the electronic component 11 transferred by the suction nozzles 3, 4, 5, 6 held in the holder 2, corresponding to the stop position of the turn holder 2 from to the component mounting position S5;
A CCD recognition camera 13 for position detection in the XY directions and suction nozzle rotation means 14 for angular position adjustment are provided. The Y-direction position regulating means 12 is symmetrical in the Y-direction with respect to the suction nozzle located at the use position on the turn holder 2 (in this embodiment, the position having the maximum turning radius), which reaches the one-direction position regulating position S2 where it is provided. It has clamp claws 12a, 12a that can be opened and closed while maintaining the position, and aligns the electronic component 11 sucked by the suction nozzle at the use position in the Y direction by clamping the electronic component 11 sucked by the suction nozzle at the use position.

The recognition camera 13 detects the electronic component 11 being sucked by the suction nozzle at the use position on the turn holder 2, which has reached the position detection position S3 where the recognition camera 13 is installed.
It detects the position in the XY directions and the angular position of the electronic component 11 centered on the use position suction nozzle, and is also equipped with an illumination system.

As shown in FIG. 3, the suction nozzle rotating means 14 has a drive shaft 16 installed vertically on the lifting platform 15, and is rotated by transmission from a motor 17.
5, the lower end friction transmission part 16a is pressed against the upper end passive part 18 of the suction nozzle in the use position,
It is rotated by friction transmission.
Each suction nozzle 3, 4, 5, 6 has a spring 19 attached to the turn holder 2, as shown in FIG.
The suction nozzle rotating means 14 is pressed against the friction transmission part 16a with sufficient pressure without any difficulty.

Component mounting position S5 in the rotational direction of the support 1
A defective parts removal position S6 and a nozzle selection position S7 are set corresponding to the stop positions of each turn holder 2 between 1 and 2 and part receiving position S1.

At the nozzle selection position S7, a nozzle selection means 20 is provided.
is provided. As shown in FIG. 4, the selection means 20 has a drive shaft 22 vertically installed on a movable table 21 that moves toward and away from the turn holder 2 located at the selection position S7, and is rotated by transmission from a motor 23. As the movable table 21 approaches the turn holder 2, the drive gear 24 at the lower end engages with the passive gear 25 provided at the upper end of the turn holder 2, and the suction nozzles 3 to 6 holding the turn holder 2 therein are engaged.
Among them, the one designated corresponding to the next electronic component 11 to be received is driven so as to come to the use position.

In the turn holder 2, a stopper 26 provided on the support 1 is biased by a spring 27 to engage the passive gear 2.
5, the suction nozzles 3,
Normally, one of the positions 4, 5, and 6 is selected and stabilized in the operating position. But stoppa 26
, when the moving table 21 approaches the turn holder 2 and the gears 24 and 25 are engaged with each other, the pusher 28 attached to the moving table 21 is pushed, and the gear 25 moves against the bias of the spring 27. Since the nozzle selection means 20 is removed and released from the turn holder 2,
does not interfere with the selective action on the turn holder 2.

A series of operations will be described below. At the component receiving position S1, by moving the X moving table 7 in the X direction, the component supply cassette 8 that supplies the electronic component 11 to be transferred next is located at the component receiving position S1. will be prepared. In conjunction with this, the turn holder 2 held on the support body 1 which rotates intermittently,
After receiving the selection operation by the nozzle selection means 20, the electronic component 1 reaches the component receiving position S1 and is supplied by the prepared component supply cassette 8 by the selected suction nozzle held at the use position.
1 is held by suction.

The suction nozzle that suction-holds the electronic component 11 is kept at the use position until it reaches the nozzle selection position S7 and receives another nozzle selection. Therefore, the suction-held electronic component 11 is transferred on a constant circular orbit from the component receiving position S1 to the component mounting position S5, etc., and when it reaches the one-way position regulating position S2, it is moved by the Y-direction position regulating means 12. Then, it is aligned with the suction nozzle in its own Y direction. Electronic parts 11
The Y direction is set in a direction in which misalignment with respect to the suction nozzle tends to cause problems such as protrusion of the suction nozzle from the electronic component 11, for example, in the case of a flat electronic component 11, the width direction in a plane. This results in
After the one-way position adjustment, the electronic component 11 is position-adjusted in the Y direction with respect to the suction nozzle, the inconvenient positional deviation state is eliminated, and the electronic component 11 is stably transferred, and when it reaches the next position detection position S3. There is no recognition failure due to protrusion of the suction nozzle.
The position in both the X and Y directions with respect to the suction nozzle and the angular position around the suction nozzle are correctly detected.

When the electronic component 11 further reaches the angular position regulation position S4, the suction nozzle rotation means 14 is activated as necessary, and acts on the suction nozzle in the use position, correcting the angular position based on the position detection and rotating the electronic circuit. The angular position is changed based on the specified mounting angle on the board 10.

At the component mounting position S5, by moving the XY moving table 9 in the X and Y directions, the board 10 is aligned with the suction nozzle in order to receive the component mounting at a predetermined position on the electronic circuit board 10 placed thereon. ,
Based on the position detection, position adjustment is performed on the electronic circuit board 10 side in place of the necessary X-direction position alignment and Y-direction position correction for the suction nozzle of the electronic component 11.

As a result, at the component mounting position S5, a predetermined electronic component 1 is placed at a predetermined position on the electronic circuit board 10.
1 is mounted in the correct X, Y position and angular position.

When mounting a component using a suction nozzle, the electronic component 11 that has been suctioned and held is attached to the electronic circuit board 10 by switching the connection to a positive pressure path (not shown) of the suction nozzle.
This is done by spraying from a position very close to the target. However, this spraying is
It is not performed for electronic components 11 that are determined to be defective, such as recognition failure in step 3. The defective electronic component 11 is sucked and held by the suction nozzle and moved to the component mounting position S5.
and reaches the parts removal position S6.

At the parts removal position S6, a positive pressure path is connected to the use position suction nozzle to blow off the defective parts that have been sucked and transferred to the parts removal position S6. This defective part is received by the lower receiver 29.

Effects of the Invention According to the present invention, a plurality of types of suction nozzles rotatably provided at each component mounting and holding position of the intermittent rotation support are selectively used depending on the size and shape of the mounted component, and the components are removed. In addition to being able to more safely and reliably attract, transport, and mount the suction nozzles, each of the multiple types of suction nozzles can rotate on its own axis relative to the turn holder that holds them in a rotatable manner, allowing them to be suctioned at specific selected usage positions. Since the position of the held component can be detected and the angular position of the component can be set or corrected based on the detected position, the angular setting and adjustment of component mounting can be easily and accurately performed.

[Brief explanation of the drawing]

Fig. 1 is a plan view schematically showing an embodiment of the present invention, Fig. 2 is a perspective view, Fig. 3 is a side view showing the relationship between the suction nozzle rotating means and the suction nozzle, and Fig. 4 is a used suction FIG. 3 is a partially sectional side view showing the relationship between the nozzle selection means and the turn holder. 1... Intermittently rotating support body, 2... Turn holder,
3, 4, 5, 6...Suction nozzle, 11...Electronic component, 8...Component supply cassette, 13...CCD recognition camera, 14...Suction nozzle rotation means, 20...
...Nozzle selection means.

Claims (1)

[Claims] 1. A turn holder is arranged and held on the outer periphery of the intermittent rotation support body in correspondence with the intermittent rotation pitch, and
Multiple types of suction nozzles are rotatably arranged and held on each turn holder, and the suction is used by rotationally driving the turn holder in accordance with each stop position on the movement path by the intermittent rotation support of the turn holder. a nozzle selection means for selecting a nozzle; a component supply means for supplying a component to a selected suction nozzle and holding it there by suction; a position detection means for detecting the angular position of the component held by the suction nozzle; a nozzle rotation means for setting or correcting the angular position of the part based on the position detection data at each time by rotationally driving a suction nozzle that is
A component mounting device characterized in that the components are sequentially arranged in the rotational direction of an intermittent rotation support.