JPS6042900A - Presence or absence recognizing device of electronic part orlike on jig - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jig, a jig for recognizing whether an electronic component or the like is present at a predetermined position of L, and a device for recognizing the presence or absence of an electronic component or the like.

In this specification, electronic components etc. refer to not only individual electronic components, but also
It is defined to include members constituting electronic parts.

In the process of manufacturing electronic components such as diodes, pellets, which are the components that make up the diode, are placed on a jig.
After that, the process moves on to cleaning and cleaning. Conventionally, it has been desired to be able to easily recognize whether or not the pellets have been placed in the jig reliably, that is, whether or not the pellets are in a predetermined position.

The present invention has been made in view of the above points, and is an inexpensive electronic component on a jig that can easily recognize whether or not an electronic component is present at a predetermined position on the jig and remove it. The objective is to provide a presence/absence recognition device such as the following.

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of the jig I), and FIG. 2 is a sectional view taken from the section line T[-1 in FIG. 1. Jig (1)
is a rectangular plate-like body, and as shown in Fig. 1, there are 11 arrangement holes (2
). This arrangement hole (2) has a step as shown in FIG.

In the manufacturing process of electronic components such as diodes, RIFI
As mentioned above, pellets (
3) is placed in the placement hole (2), which is a predetermined position, on the jig (1), and then steps such as correction and cleaning are performed.

To place the pellet (3) in the placement hole (2), simply place the pellet (3) on the jig (1) and suck it from the back of the jig (1) through the placement hole (2). As a result, the pellet (3) is suctioned and placed in the placement hole (2). Then, fix all the placement holes in (1) (2)
After confirming whether the pellet (3) has been placed in the area, proceed to the next step. The present invention is used to recognize whether the pellet (3) is placed in the placement hole (2) of the jig (1), that is, whether it is at a predetermined position on the jig.

FIG. 3 is a perspective view of an embodiment of the present invention (1), and FIG. 4 is a circuit diagram thereof. The apparatus for recognizing the presence or absence of electronic components, etc. on a jig according to the present invention includes a substrate (
4), a detection control means (6) for detecting the presence or absence of the verge 7) (3) based on the outputs of these light receiving elements (5), and a substrate ( 4) to sequentially place the light receiving element (5) at a predetermined position on the jig (1),
That is, it includes a driving means facing the arrangement hole (2).

The substrate (4) above the jig (1) has 11 through holes ( 12) are formed, and n light receiving elements (5) are provided in these through holes (12),
Ru. A light emitting means (not shown) is provided below the jig (1), and when the light receiving element (5) receives light emitted from the light emitting means through the opposing arrangement hole (2), it performs detection control as described below. A low level signal is applied to the means (6), and when no light is received, a signal of 1.0 mV is applied. That is, if there is a pellet (3) in the arrangement hole (2), the light receiving element (5) facing the arrangement hole (2) cannot receive the light emitted from the light emitting means, and the pellet (3) is in the arrangement hole (2). 3
), the light emitted from the light emitting means can be received.

The driving means consists of a motor (not shown) and a feeder 7) rotated by this motor, and the driving means is configured to move the substrate (4) to a jig,
To displace along the - side of (1).

The detection control means (6) is integrated with the substrate (4), and the detection control means (6) is integrated with the substrate (4).
) along the − side of jig (1) in the direction of arrow (8). Due to this displacement of the substrate (4), the n light receiving elements (5) of the substrate (4) are synchronized one row at a time, that is, 11 of the 12 arrangement holes (n) of the jig (1). They will face each other in sequence in synchronization with the output pulses of the pulse generating means (16). Note that (1) of the detection control means (6)
5) is the lead pattern, (1:<) is the socket,
(14) is a circuit component.

The detection control means (6) has 11 contacts (9) corresponding to the light receiving element (5) as shown in FIG. 4, and is further realized by a differential amplifier (Hl) and a microcomputer. It consists of a processing circuit (11).

This detection control means (6) detects whether or not the pellet (3) is present in the arrangement hole (2) based on the output from the light receiving element (5), and also includes a driving means for displacing the substrate (4). control. Variations in the sensitivity adjustment of the light receiving element (5) can be corrected by the resistor R.

Next, we will explain the operation of the device for recognizing the presence or absence of electronic components on a jig configured as shown here.First, the driving means (7
), the position facing each of the 11 light receiving elements (5) of the substrate (4) or one row (n) of arrangement holes (2) of the jig (1) (from the synchronous timing pulse generating means (16) The substrate (4) is displaced until it reaches the position where the pulse is generated. Next, in the detection control means (6), n light receiving elements (5
), sequentially open and close n contacts (9) corresponding to jig (1
) detects whether or not the light receiving element (5) is receiving light emitted from the light emitting means below. That is, as shown in FIG. 4, for example, when the first contact (9) is closed and there is no pellet (3) in the first arrangement hole (2), the opposite pellet is inserted through this arrangement hole (2). The first light receiving element (5) receives the emitted light, and the differential amplifier (1(')) gives a low level signal to the processing circuit (11). (2) to pellet (3)
, the first light receiving element (5) facing the arrangement hole (2) cannot receive the emitted light, and the differential amplifier (10
), a high level signal is given to the processing circuit (11). In this way, it is detected whether or not there are pellets (3) in the n arrangement holes (2).

When the detection of one row of arrangement holes (2) is completed, the substrate (4) is displaced to a position opposite to the arrangement holes (2) of the next row, and the same operation is repeated. This detection of each row is performed according to a constant pulse, and the driving means also follows this pulse to detect the substrate (4
) is displaced.

In the above-described embodiment, the presence or absence of pellets (3) was detected in the arrangement holes (2) one row at a time (n pieces), but the present invention is not limited to one row at a time; The number and the displacement width of the substrate (4) by the driving means may be changed to detect each arbitrary number.

As described above, according to the present invention, the light receiving element provided on the substrate facing a part of the jig, the detection control means for detecting the presence or absence of an electronic component based on the output of the light receiving element, and the The device for recognizing the presence or absence of electronic components on the jig is constructed by a drive stage that displaces the substrate and sequentially brings the light receiving elements to face predetermined positions on the jig, so it can be fixed easily and reliably. It becomes possible to recognize the presence or absence of electronic components, etc. on the object.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the jig, Figure 2 is the cutting line of Figure 1 ■-■
3 is a perspective view of an embodiment of the present invention,
FIG. 4 is its circuit diagram. (1)... Jig, (2)... Placement hole, (3)...
Pellet, (4)...substrate, (5)...light receiving element,
(6)...Detection control means, (7)...Feed screw, (
16)...: Synchronous timing pulse generation means. Applicant: ROHM Co., Ltd. Agent: Kazuhide Okada, patent attorney □

Claims (1)

[Claims] (1) In a device for recognizing the presence or absence of electronic components, etc. on a jig, which recognizes whether or not a plurality of electronic components, etc. are present at predetermined positions on the jig, a a detection control means for detecting the presence or absence of an electronic component based on the direction of the light receiving element, and a driving means for displacing the substrate to sequentially face the light receiving element to a predetermined position on the jig. A device for recognizing the presence or absence of parts, etc. of a jig 1;