JP2002257510A - Device position detecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device position detecting apparatus capable of detecting a more accurate device position. SOLUTION: The feature of this device position detecting apparatus is that in this apparatus equipped with a recessed pocket wherein a device provided on a base board is disposed, a groove provided on the base board while passing through the pocket parallel with the bottom part of the pocket, a light source provided on one side of the groove to apply light to the groove, and a light intercepting sensor to detect the quantity of light intercepted by intercepting light passing through the groove, a first signal generating means to generate a signal indicating that the device is not normally disposed in the pocket when the quantity of light intercepted is not more than a first prescribed quantity, by receiving a signal from the light intercepting sensor, and a second signal generating means to generate a signal indicating that the quantity of light intercepted is not less than a second prescribed quantity, by receiving a signal from the light intercepting sensor are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device position detecting device capable of detecting a device position more accurately.

[0002]

2. Description of the Related Art FIG.
In the illustration of the main part configuration of the conventional example, the load
Here is an example used for torr. B in horizontal handler
The shuttle A sends the transported device B to the base.
Recess at the center of the concave pocket 2 provided on the base substrate 1
And if necessary, the orientation of device B on the drawing paper.
Function and operation of transporting by rotating in any direction in the plane
Having.

Although not shown, the load shuttle A is moved in the vertical direction on the paper by an air pressure cylinder or an electric mechanism. The load shuttle A has four pockets 2 in this embodiment, and changes the direction of the device B as necessary.

[0004] For example, it rotates 90 ° clockwise. 3 is
A groove provided in the base substrate 1 through the pocket 2 in parallel with the bottom of the pocket 2. When the device B is transported and placed in these pockets 2, the state is detected via the groove 3 by the transmission type optical fiber sensor heads 4 arranged on the left and right sides of the load shuttle A.

[0005] The optical fiber sensor head 4 comprises a light source 41 and a light receiving sensor 42. A detection signal is output from the optical fiber sensor amplifier 5 based on the amount of light received by the light receiving sensor 42.

In the above configuration, FIG.
Now, the device B is arranged in the upper left pocket 21 and the upper right pocket 22 with respect to the paper surface of the base substrate 1, and the device B is not arranged in the lower left pocket 23 and the lower right pocket 24. Indicates the status.

[0007] As shown in FIG. 6, when the device B is not present or has not been conveyed yet, the light receiving sensor 42 receives a substantially maximum amount of transmitted light C. Also,
As shown in FIGS. 8 and 9, when the device B exists, that is, when the device B exists in the pocket 2, the light is blocked by the device B, and the light receiving sensor 42 receives the reduced light amount.

A threshold is determined based on the difference between the light amounts in the two states, and a signal is emitted from the optical fiber sensor amplifier 5.
In this case, as shown in FIG. 10, when the device B is in the pocket 2, an ON signal is output.

When the device B is not in the pocket 2, it is set to output an off signal, for example, to issue an alarm. In other words, is the state of device B
It is only a determination of whether or not there is.

[0010]

However, in such an apparatus, (1) the state of the device B is only a determination as to whether or not the device B is present, and the state of the pocket 2 riding on the shoulder cannot be detected. Can not.

However, even when the device B is transported, the device B may not be properly accommodated in the pocket 2 and may be placed on the shoulder of the pocket 2. At this time, the device presence / absence sensor is determined to be present (normal). Therefore, the device B is conveyed with the position shifted after the next stage of the conveyance.

As a result, when measuring the function and performance of the device B at the place where the performance of the device B is measured,
Device B is not properly inserted into the tester socket,
Since it is pushed from above, device B will be mechanically destroyed.

(2) In order to detect the riding state of the pocket 2 on the shoulder, it may be possible to additionally install a sensor dedicated to riding on the shoulder. However, in actuality, since there is an existing sensor head, space is limited. It interferes and makes additional installation difficult, and extra cost is required for new installation.

An object of the present invention is to solve the above-mentioned problems and to provide a device position detecting device capable of detecting a device position more accurately. More specifically,
In addition to the conventional detection of presence / absence of the device B, the state of the device B is also detected. .

[0015]

In order to achieve the above object, according to the present invention, in the device position detecting device of the first aspect, a concave pocket provided on the base substrate and in which the device is arranged, and A groove provided in the base substrate through the pocket in parallel with the bottom of the pocket,
A signal from the light receiving sensor is provided in a device position detecting device including a light source provided on one side of the groove for irradiating light to the groove, and a light receiving sensor for receiving light passing through the groove and detecting a received light amount. A first signal generating means for receiving a signal when the received light amount is equal to or less than a first predetermined amount, the device indicating that the device is not properly arranged in the pocket;
Second signal generating means for receiving a signal from the light receiving sensor and issuing a signal that the device is not arranged in the pocket when the amount of received light is equal to or more than a second predetermined amount. .

According to a second aspect of the present invention, in the device position detecting device according to the first aspect, the first signal generating means and the second signal generating means are combined as one signal generating means. It is characterized by being.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of a main part configuration of an embodiment of the present invention, and shows an example used for a load shuttle of a horizontal handler.

In the drawing, the same symbols as in FIG. 6 indicate the same functions. Hereinafter, only differences from FIG. 6 will be described. In the figure, a first signal generating means 11 is
When the received light amount is equal to or less than the first predetermined amount 12 (described later), a signal indicating that the device B is not properly arranged in the pocket 2 is issued.

The second signal generating means 13 includes the light receiving sensor 4
When the received light amount is equal to or larger than a second predetermined amount 14 (described later), a signal is transmitted indicating that the device B is not arranged in the pocket 2. In this case, the first signal generator 11 and the second signal generator 13 are combined as one signal generator 10.

An output corresponding to the output of the first signal generating means 11 is output from OUT1, and an output corresponding to the output of the first signal generating means 13 is output from OUT2. Specifically, a two-output type optical fiber sensor amplifier 10 is used.

In the above configuration, as shown in FIG.
Now, in the upper left pocket 21 with respect to the paper surface of the base substrate 1, the device B is running. On the other hand, in the upper right pocket 22, the device B is normally arranged,
The lower left pocket 23 and the lower right pocket 24 show a state where the device B is not arranged.

The load shuttle A receives the transported device B in the pocket 2 as shown in FIG. The road shuttle A monitors with the optical fiber sensor amplifier 10 and the transmission type optical fiber sensor head 4 whether or not the device B is correctly stored in all the pockets 2.

If any of the following abnormalities are detected,
An alarm is issued and the operation of the handler is temporarily stopped until it returns to normal. When the load shuttle A is correctly stored in the pocket 2, the drive shuttle mechanism such as an air cylinder moves upwardly on the paper, and passes the device B to the next transport mechanism, although not shown.

The above-mentioned case where the device B is correctly stored in the pocket 2 indicates a state in which the device B is stored as shown in the pockets 21 and 22 in FIG. As shown in FIG. 2, the light emitted from the light source 41 is reduced by the thickness of the device B and reaches the light receiving sensor 42.

The optical fiber sensor amplifier 10 determines that the device is present due to the dimming = normal.

Next, when the device B is not in the pocket 2, the light emitted from the light source 41 reaches the light receiving sensor 42 with almost no dimming as shown in FIG. Next, when the device B rides on the shoulder of the pocket 2 (it is not properly stored in the pocket 2), the light emitted from the light source 41 is, as shown in FIG.
, And hardly reaches the light receiving sensor 42.

A specific adjustment method for detecting these three states with high reliability will be described below. Device B
In the absence of the light source 41 and the sensor head of the light receiving sensor 42, the light amount is maximum, and the height of the sensor head 4 is
Adjust and set the groove 3 as low as possible.

On the other hand, when the device is running, adjustment and setting are performed so that the amount of light is minimized. Next, the output of the optical fiber sensor amplifier 10 is set as shown in FIG.

That is, since "OUT1" set for detecting a ride is in a state where the light amount is close to 0 as described above, the detection set point is set to a value close to 0, for example, the light amount 20 position. .

Since "OUT2" set to detect the absence of the device B is in a state close to the light amount = 4000 (in this case, the saturated state), the detection set point is set close to 4000. Value, for example, 3980
To

Therefore, as shown in FIG.
It is possible to distinguish between a state where the pocket 2 is not normally placed, a state where the pocket 2 is normally placed, and a state where the pocket 2 is not placed normally.

As a result, (1) receiving the signal from the light receiving sensor 42, the light receiving amount becomes the first
Is less than or equal to the predetermined amount 12, the first signal generating means 11 for generating a signal indicating that the device is not properly placed in the pocket; In the above case, the second signal generating means 13 for generating a signal indicating that the device B is not arranged in the pocket 2 is provided.

Thus, in addition to the conventional detection of only the presence or absence of the device B, the device B
Can also be detected when they are not properly arranged. Therefore, the conventional sensor 4 for detecting the presence / absence of the device B includes:
Without adding a sensor for detecting a case where the device B is not properly placed in the pocket 2,
One state can be detected.

(2) Since the first signal generating means 11 and the second signal generating means 13 are combined as one signal generating means 10, the components of the signal generating means 11 and 13 can be shared. This makes it possible to detect a device absence state, a normal state, and a riding state with a single detecting means, so that a device position detecting device capable of detecting the three states can be obtained at low cost.

Therefore, according to the present invention, it is possible to realize a device position detecting device capable of more accurately detecting a device position.

In the above-described embodiment, the load shuttle has been described. However, the present invention is not limited to this. For example, an unload shuttle may be used. In short, any device having a device storage section may be used.

In the above embodiment, two, two,
Although the example of the arrangement of the pockets 2 in the row has been described, the present invention is not limited to this, and it is sufficient that the number of the pockets 2 is at least one.

Further, in the above-described embodiment, the riding of the device has been described in the upward direction on the paper, but the invention is not limited to this.

In the above embodiment, the method of adjusting and setting the vertical position of the sensor head 4 with respect to the device B has been described. However, the present invention is not limited to this. Alternatively, a slit having a mechanism for passing a light beam in a range effective for detecting the device B may be used.

The foregoing description has been directed to specific preferred embodiments for the purpose of describing and illustrating the invention. Therefore, the present invention is not limited to the above-described embodiments, and includes many more modifications without departing from the spirit thereof.
This includes deformation.

[0040]

As described above, according to the first aspect of the present invention,
According to the above, the following effects are obtained. When a signal from the light receiving sensor is received and the amount of received light is equal to or less than the first predetermined amount, a signal indicating that the device is not properly arranged in the pocket is issued.
The first signal generating means is provided, and the second signal generating means for receiving a signal from the light receiving sensor and generating a signal that the device is not arranged in the pocket when the amount of received light is equal to or more than a second predetermined amount is provided.

Thus, in addition to the conventional detection of only the presence or absence of a device, it is also possible to detect the case where the device is not properly arranged in the pocket. Therefore,
The above three states can be detected without adding a sensor for detecting a case where a device is not normally arranged in the pocket to the conventional sensor for detecting the presence or absence of the device.

According to the second aspect of the present invention, the following effects can be obtained. Since the first signal generation means and the second signal generation means are combined as one signal generation means, the components of the signal generation means can be shared, and one detection means can be used without a device. , A normal state and a riding state can be detected, so that a device position detecting device capable of detecting three states can be obtained at low cost.

Therefore, according to the present invention, it is possible to realize a device position detecting device capable of more accurately detecting a device position.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a main part configuration of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of FIG. 1;

FIG. 3 is an operation explanatory diagram of FIG. 1;

FIG. 4 is an operation explanatory diagram of FIG. 1;

FIG. 5 is an operation explanatory diagram of FIG. 1;

FIG. 6 is an explanatory view of a configuration of a main part of a conventional example generally used in the related art.

FIG. 7 is an operation explanatory diagram of FIG. 6;

FIG. 8 is an operation explanatory diagram of FIG. 6;

FIG. 9 is an operation explanatory diagram of FIG. 6;

FIG. 10 is an operation explanatory diagram of FIG. 6;

[Explanation of symbols]

 Reference Signs List 1 base substrate 2 pocket 21 pocket 22 pocket 23 pocket 24 pocket 3 groove 4 optical fiber sensor head 41 light source 42 light receiving sensor 5 optical fiber sensor amplifier 10 signal generating means 11 first signal generating means 12 first predetermined amount 13 second Signal generating means 14 The second predetermined amount A Road shuttle B Device

Claims (2)

[The claims] 1. A concave pocket provided in a base substrate and in which a device is arranged, a groove provided in the base substrate through the pocket in parallel with a bottom of the pocket, and provided on one side of the groove. In a device position detecting device including a light source for irradiating light to the groove and a light receiving sensor for receiving light passing through the groove and detecting a light receiving amount, a signal from the light receiving sensor receives the first light amount. A first signal generating means for issuing a signal that the device is not properly placed in the pocket when the amount of light received is equal to or less than a second predetermined amount. And a second signal generating means for generating a signal indicating that the device is not placed in the pocket. 2. The device position detecting device according to claim 1, wherein said first signal generating means and said second signal generating means are combined as one signal generating means.