JPH08213791A - Part mounting device - Google Patents

Abstract

PURPOSE: To enable detection as to whether the set state of a part supply unit is abnormal or not. CONSTITUTION: A tape feeder 6 as a part supply unit is set in a normal state, and a pressing switch 20 is provided so that a part to be pressed 21 is located within a rotation locus of a part feed lever 13. As the part feed lever 13 is rotated to a normal operating position by a push rod 14, the part to be pressed 21 is pressed by the part feed lever 13. When the set state of the tape feeder 6 is abnormal, the part to be pressed 21 is prevented from being pressed even when the push rod 14 operates. Accordingly, abnormality of the set state of the tape feeder 6 can be detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting device having a function of detecting a set state of a component supply device on a base.

[0002]

2. Description of the Related Art In recent years, a component mounting apparatus has been used as a device for mounting chipped electronic components on a printed circuit board. This component mounting apparatus is configured to take out a component supplied from a component supply device by a mounting head attached to an XY robot, convey the component onto a printed circuit board by the mounting head, and mount the component. The parts can be mounted. In this case, one type of component is to be supplied from one component supply device, but in this type of component mounting device, many types of components are mounted, so many components are mounted. The parts supply device is installed.

A component mounting apparatus of this type will be described with reference to FIGS. First, in FIG. 6 showing the overall schematic configuration, an XY robot 2 is provided in the main body 1 of the component mounting apparatus, and a mounting head 3 is provided in the XY robot 2. At the center of the operating range of the XY robot 2, a conveyor 4 for board transfer is provided.
By this conveyor 4, the printed circuit board 5 for mounting components is conveyed from outside the operation range of the XY robot 2 in the X direction to within the operation range, and is fixed at a predetermined position by a positioning mechanism (not shown). .

Tape feeder 6 as a component supply device
Includes a reel 7 around which a tape holding a large number of components is wound, and a plurality of the reels 7 are set side by side on a feeder base 8 which is a base provided within an operation range of the XY robot 2 in the Y direction. . Each tape feeder 6 has a
As shown in FIG. 9, two positioning pins 9 and 9 and one fixing pin 10 are provided, and the feeder base 8 is shown in FIG.
As shown in, a plurality of sets of two positioning holes 11 and one fixing pin hole 12 are provided. Thus, each tape feeder 6 has a positioning pin 9 and a fixing pin 10.
Is inserted into the corresponding positioning hole 11 and fixing pin hole 12, and the fixing pin 10 is locked, so that the fixing pin 10 is detachably set on the feeder base 8.

A component feed lever 13 is rotatably provided at the tip of the tape feeder 6, and the component feed lever 13 is indicated by a solid line in FIG. 8 by a push rod 14 driven by an air cylinder. The components 15 are delivered to the supply position 16 one by one based on the rotation from the standby position shown to the operating position shown by the chain double-dashed line.

In the above structure, however, when mounting the component 15 on the printed circuit board 5, the air cylinder corresponding to the tape feeder 6 having the component to be mounted is operated, and the push rod 14 of the air cylinder operates the component feed lever 13.
The component 15 is fed to the supply position of the tape feeder 6 by rotating the component 15 to the operating position. Then, after the mounting head 3 is moved to the supply position 16 by the XY robot 2, the mounting head 3 is lowered and the component 15 is held by the suction force of the air vacuum. After that, the mounting head 3 is raised and moved to the mounting point of the printed circuit board 5, and then the mounting head 3 is lowered to move the component 15
Is mounted on the printed circuit board 5. Thereafter, the components are mounted by repeating such operations.

[0007]

By the way, if the setting state of the tape feeder 6 on the feeder base 8 is incomplete, the tape feeder 6 may float or come off from the feeder base 8 during operation. However,
Conventionally, even if such a state occurs during operation, since there is no function to detect this, when the mounting head 3 moves to the side of the tape feeder 6 to adsorb a component, there is originally interference. There is a possibility that the mounting head 3 and the tape feeder 6 which do not have the above may interfere with each other and be damaged.

Therefore, an object of the present invention is to detect whether or not the set state of the component supply device is abnormal and to prevent damage to the mounting head or the component supply device. To provide a mounting device.

[0009]

In order to achieve the above-mentioned object, the present invention sets a component supply device having a component feed lever to a base so that the component feed lever is detachably set, and moves the component feed lever from a standby position to an operating position. In the component mounting apparatus configured to feed the component to the supply position based on the movement, hold the fed component by the mounting head, and mount the component to a predetermined portion, whether the component feed lever has been moved to the regular operating position. It is characterized in that a detection means for detecting whether or not is provided.

In this case, the detecting means may be constituted by a push-type switch that is pressed by the component feed lever according to the movement of the component feed lever to the normal operating position, or by the component feed lever. It may be configured by a photoelectric switch that detects whether light is blocked or reflected.

[0011]

According to the above-mentioned means, when the component feed lever is moved to the regular operating position with the component supply device set in the regular state with respect to the base, the component is detected by the detecting means. It can be detected that the feed lever has been moved to the normal operating position. On the other hand, when the component supply device is not set to the normal position with respect to the base, even if the component feed lever is moved toward the operating position, the component feed lever does not move to the normal operating position. Since it is not moved, the detection means can detect that the component feed lever has not been moved to the normal operating position.

In this way, by detecting whether or not the component feed lever has been moved to the regular operating position by the detecting means, it is determined whether or not the component supply device is set in the regular state with respect to the base. it can. Therefore, when the component supply device is not set in the proper state with respect to the base, that is, when it is determined that the set state of the component supply device is abnormal, the mounting head is stopped to move the mounting head. It is possible to prevent damage to the head and the component supply device.

In this case, when a pressing switch that is pressed by a component feed lever is used as the detecting means, the set state can be detected for each component supply device.

When a photoelectric switch is used as the detecting means, the photoelectric switch is provided for each component supply device so that the set state can be detected for each component supply device, and a plurality of component supply devices can be detected. By providing one photoelectric switch with respect to the above, it becomes possible to detect the set state of a plurality of component supply devices with one photoelectric switch.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. However, the same parts as those of the conventional configuration are designated by the same reference numerals, and detailed description thereof will be omitted.
First, FIGS. 1 and 2 show a state in which a tape feeder 6 which is a component supply device is set in a regular state on a feeder base 8 which is a base. In this state, the two positioning pins 9 and 9 on the lower surface of the tape feeder 6 are inserted into the respective positioning holes 11 of the feeder base 8 and the one fixing pin 10 between the two positioning pins 9 and 9 is provided.
Is inserted and locked in the fixing pin hole 12 of the feeder base 8.

Of these FIGS. 1 and 2, FIG. 1 shows a state in which the component feed lever 13 is positioned at the standby position.
Further, FIG. 2 shows a state in which the component feed lever 13 is moved to the normal operating position by the push rod 14 of the air cylinder.

However, in front of the component feeding lever 13 in each tape feeder 6 (on the left side in FIGS. 1 and 2),
A push-type switch 20 which constitutes a detecting means is provided (only one tape feeder 6 and push-type switch 20 are shown in FIGS. 1 and 2). In this case, the pressed portion 21 of the push switch 20 is the component feed lever 1
It is arranged in the rotation locus of No. 3.

In the above-mentioned structure, when the push rod 14 of the air cylinder moves forward (in the direction of arrow A) in order to feed the parts in the tape feeder 6 to the parts feeding position 16 in the state shown in FIG. The component feed lever 13 is moved from the standby position to the operation position shown in FIG. 2, and the component 15 is delivered to the component supply position 16 accordingly. At this time, the pressed portion 21 of the push switch 20 is pushed by the component feed lever 13, and the push switch 20 is turned on. Based on this, it can be determined that the component feed lever 13 has operated normally, and thus it can be determined that the tape feeder 6 is set in the normal state. The component feed lever 13 is
After the component 15 is sent out, the push rod 14 moves back to return to the standby position shown in FIG.

As described above, when the component feed lever 13 operates normally and the component 15 is fed to the supply position 16, the mounting head 3 moves to a position above the supply position 16 and then descends to adsorb the component 15. Then, after that, it rises and the printed circuit board 5
(See Fig. 6) Move to the mounting point
Will be mounted on the printed circuit board 5.

On the other hand, FIG. 3 shows a case where the set state of the tape feeder 6 is abnormal. In this case, the tip side of the tape feeder 6 is in a state of being lifted from the feeder base 8. When the push rod 14 is operated in such a state, even if the component feed lever 13 is pressed by the push rod 14, the component feed lever 13 is out of the normal rotation locus and is moved to the normal operation position. Is not moved, the pressed portion 21 of the push switch 20 is not pushed. Therefore, in this case, since the push-type switch 20 is not turned on, it can be determined that the component feed lever 13 is not operating normally, and it can be determined that the set state of the tape feeder 6 is abnormal. In this way, when it is determined that the set state of the tape feeder 6 is abnormal, the movement of the mounting head 3 is stopped.

According to the first embodiment described above, the tape feeder 6 is moved relative to the feeder base 8 by detecting whether or not the component feed lever 13 has been moved to the normal operating position by the push switch 20. It can be determined whether or not it is set in the normal state. Therefore, when it is determined that the setting of the tape feeder 6 is abnormal, the movement of the mounting head 3 is stopped before the mounting head 3 moves to the tape feeder 6 side, so that the mounting head 3 and the tape feeder 6 are damaged. This can be prevented in advance.

In this case, the push switch 20 is
1 corresponding to the component feed lever 13 of each tape feeder 6
Since individual pieces are provided, it is possible to easily determine which tape feeder 6 has the abnormal set state when there is an abnormality.

FIGS. 4 and 5 show a second embodiment of the present invention, which is different from the above-mentioned first embodiment in the following points. That is, as the detection means,
A light transmission type photoelectric switch 22 is used. The photoelectric switch 22 includes a light projecting element 23 and a light receiving element 24,
The light projecting element 23 and the light receiving element 24 are arranged in front of each other with a plurality of tape feeders 6 interposed therebetween. In this case, the light projecting element 23 and the light receiving element 24 feed the parts when the parts feeding lever 13 is moved to the normal operating position with the tape feeder 6 set in the normal state (see FIG. 5). Lever 13
The optical axis 25 is arranged so as to be blocked by.

In the above structure, as shown in FIG. 5, when the component feeding lever 13 of one of the plurality of tape feeders 6 is moved to the normal operating position, the component feeding lever 13 is moved. Thus, the optical axis 25 is blocked. Therefore, by detecting this with the photoelectric switch 22, it can be determined that the component feed lever 13 has normally operated, and thus it can be determined that the tape feeder 6 is set in the normal state.

On the other hand, the push rod 1 for feeding parts
If the optical axis 25 of the photoelectric switch 22 is not shut off even after the operation of No. 4, it is possible to determine that the component feed lever 13 is not operating normally, and thus the setting state of the tape feeder 6 is abnormal. You can judge. Further, even when the optical axis 25 of the photoelectric switch 22 is cut off when the push rod 14 is not operated, it can be determined that the set state of the tape feeder 6 is abnormal. As described above, when it is determined that the set state of the tape feeder 6 is abnormal, the movement of the mounting head 3 is stopped to prevent the mounting head 3 and the tape feeder 6 from being damaged. You can

In the second embodiment as described above, it is possible to obtain the same effects as those of the first embodiment. In addition, in this case, since it is possible to detect the set state of the plurality of tape feeders 6 by one set of photoelectric switches 22, when a plurality of tape feeders 6 are set,
Fewer parts for detection and less electrical wiring,
There is an advantage that the structure can be simplified.

In the second embodiment described above, the case where the light transmission type photoelectric switch 22 is used as the detecting means is illustrated, but instead of this, a light projecting element and a light receiving element are provided on one side, Even if a light-reflective photoelectric switch that detects reflected light is used, the same effects as those of the second embodiment can be obtained. Further, the light transmission type photoelectric switch 22 or the light reflection type photoelectric switch may be provided for each tape feeder 6.

[0028]

According to the present invention, whether the component feeding device is set in the proper state with respect to the base by detecting whether or not the component feed lever has been moved to the proper operating position by the detecting means. It can be determined whether or not. Therefore, when it is determined that the set state of the component supply device is abnormal, by stopping the movement of the mounting head, it is possible to prevent the mounting head and the component supply device from being damaged.

When a pressing switch that is pressed by the component feed lever is used as the detecting means, the set state can be detected for each component supply device.

When a photoelectric switch is used as the detection means, the photoelectric switch is provided for each component supply device, whereby the set state can be detected for each component supply device, and a plurality of component supply devices can be detected. By providing one photoelectric switch for the above, it becomes possible to detect the set state of a plurality of component supply devices by one photoelectric switch.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part showing a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional side view of essential parts in a state where a component feed lever is moved to an operating position.

FIG. 3 is a vertical cross-sectional side view of essential parts when the set state of the tape feeder is abnormal.

FIG. 4 is a perspective view of an essential part showing a second embodiment of the present invention.

FIG. 5 is a perspective view of a main part in a state where one component feed lever is moved to an operating position.

FIG. 6 is a perspective view of the entire component mounting apparatus.

FIG. 7 is a perspective view showing a conventional configuration and showing a set state of a tape feeder.

FIG. 8 is a vertical sectional side view showing a set state of the tape feeder.

FIG. 9 is a plan view of a feeder base.

[Explanation of symbols]

3 is a mounting head, 6 is a tape feeder (component feeder), 8 is a feeder base, 13 is a component feed lever, 1
4 is a push rod, 15 is a component, 16 is a supply position, 2
Reference numeral 0 is a push switch (detection means), and 22 is a photoelectric switch (detection means).

Claims (3)

[Claims] 1. A component supply device having a component feed lever is detachably set on a base, and the component feed lever is moved from a standby position to an operating position to feed the component to the feed position, and the fed component. In a component mounting device configured to hold the component by a mounting head and mount the component on a predetermined portion, a component mounting device provided with detection means for detecting whether or not the component feed lever has been moved to a regular operating position. . 2. The detecting means is constituted by a push-type switch that is pressed by the component feed lever in response to the movement of the component feed lever to a normal operating position. 1. The component mounting apparatus according to 1. 3. The detection means is composed of a photoelectric switch that detects that light is blocked or reflected by the component feed lever in response to the movement of the component feed lever to a normal operating position. The component mounting apparatus according to claim 1, wherein: