JP2833287B2 - Inspection jig for multipolar electronic devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for inspecting a multi-polar electronic device having many pins and terminals such as a terminal plate and a connector. The present invention relates to an inspection jig for a multipolar electronic device in which productivity is improved by inspecting the presence or absence of a bend exceeding a specified value of a terminal.

2. Description of the Related Art In recent years, in the field of electronic equipment, in order to cope with higher integration of semiconductor devices, miniaturization of devices, and cost reduction, for example, signal line connection terminal plates having several thousand pins, connectors having several hundred terminals, etc. Of multipolar electronic devices are being put to practical use.

[0003]

2. Description of the Related Art FIG. 3 is a diagram showing a conventional inspection method using a multi-pin terminal board as an example, and FIG. 4 is a diagram showing a conventional inspection method using a multi-pole connector as an example.

Referring to FIG. 3 in which the electronic device is a terminal plate as an example, the terminal plate 1 is fixed to a substrate 1a and a plurality of through holes 1a 'formed in the substrate 1a by press-fitting or the like. And a pin 1b which is longer than the thickness of the substrate 1a. The through-hole 1a 'of the substrate 1a is formed so that a group of "b" -shaped holes orbiting in a square are further arranged in a grid pattern at an equal pitch. Perforated.

Therefore, when the pins 1b are press-fitted into the through holes 1a 'so that both ends thereof protrude from both sides of the substrate 1a by a press-fitting machine (not shown) or the like, the terminal plate 1 shown in the figure is obtained. Can be.

In such a terminal board 1, the pin 1b may be bent when the pin 1b is press-fitted and fixed, and when the press-fitting machine or the like does not grip the pin 1b itself with its stocker, the pin 1b is moved to a predetermined position. The pin 1b is not press-fitted and fixed.

In view of this, a visual inspection at the time when the terminal plate 1 is completed is checked for missing or bent portions with respect to the total number of the pins 1b. In FIG. 4 showing an example of a plug connector, a plug connector (hereinafter, referred to as a connector) 2 is provided on an insulator 2b such that a plurality of plug terminals (hereinafter, referred to as terminals) 2a are arranged in a staggered grid pattern at an equal pitch. The contact pin 2a 'is located at one end of the terminal 2a and the external connection portion 2 is located at the other end.
a "project from both sides in the thickness direction of the insulator 2b.

The terminal 2a is fixed to a through-hole 2b 'formed at a plurality of locations of the insulator 2b by, for example, press fitting. In such a connector 2, the contact pin 2a 'or the external connection portion 2a "may be bent when the terminal 2a is press-fitted and fixed, and the terminal 2a is inserted into all the through holes 2b' as in the case of FIG. 2a may not be inserted and fixed.

Therefore, at the time when the connector 2 is completed, as shown in FIG. 3, the presence or absence and bending of the terminal 2a are checked by visual inspection.

[0010]

However, in either case of FIGS. 3 and 4, since the missing or bent state of the pin or the terminal relies on visual inspection, it takes a lot of man-hours and the reliability of the inspection result is sufficiently high. There was a problem that it could not be obtained.

In recent years, a technique has been put into practical use in which the above-described inspection required area is photographed by a TV camera or the like and the above-mentioned pins and terminals are checked for missing or bent by image processing. It is difficult to use for general purpose because of its special operation and special technique.

[0012]

An object of the present invention is to provide a substrate or insulator and a straight pin or terminal protruding from at least one surface of each of the substrate or insulator, and the pin or terminal is formed on the substrate or insulator. An inspection jig for a multipolar electronic device fixed by a hole, wherein the pin or terminal protrudes from the electronic device at a position corresponding to a pin or a terminal having a diameter that can be covered by a variation in the tip at a prescribed bending value of the bend. An electronic device mounting plate made of an opaque resin having holes formed therein, and a light detection unit connected to the electronic device mounting plate via a multi-core optical fiber cable;
A display unit connected to a light receiving element located in the light detection unit for exchanging signals, a light source unit disposed above the electronic device mounting surface of the electronic device mounting plate toward the mounting surface, and the display unit and the light source And an end of individually separated optical fiber forming one end of the optical fiber cable is fixed at a predetermined position in each through hole of the electronic device mounting plate. This is achieved by the inspection jig for the multipolar electronic device, which is arranged so that the cut surface at the other end of the optical fiber cable faces the light receiving element located in the light detecting portion which is shielded from light.

[0013]

In an electronic device in which pins or terminals are inserted into through holes of a substrate or an insulator, such as the terminal plate shown in FIG. There are through holes for fixing the pins and terminals.

Therefore, in the inspection jig according to the present invention, the presence or absence of light passing through the through hole of the substrate or the insulator when the inspection jig is mounted on the jig using a pin or a terminal protruding from the surface of the substrate or the insulator as a guide. The inspection jig is configured so that a missing pin or terminal as an electronic device can be detected.

This is because the setting of the electronic device to the inspection jig is easy, and if the pin or the terminal is bent beyond a specified value, the electronic device cannot be attached to the inspection jig in a closely contacted state. This means that a bend exceeding a specified value of a pin or a terminal can be detected.

Therefore, it is possible to easily and reliably inspect the presence or absence of a pin or a terminal as an electronic device and to inspect a bend exceeding a specified value without any special man-hour, thereby realizing an improvement in productivity.

[0017]

FIG. 1 is a view for explaining a configuration example of an inspection jig according to the present invention, and FIG. 2 is a view for explaining a state at the time of inspection.

In each of the figures, the terminal plate 1 described with reference to FIG.
The case of the connector 2 shown in FIG.
In the case of (2), the terminal board mounting plate of FIG.
Since the required inspection jig corresponding to the above can be configured, the description is omitted.

In FIG. 1, the inspection jig 5 includes a terminal plate mounting plate 51 made of an opaque resin or the like, a display unit 53 connected to the light detecting unit 52, and a connection between the terminal plate mounting plate 51 and the light detecting unit 52. A multi-core optical fiber cable 54, a light source unit 55 disposed above the terminal plate mounting surface of the terminal plate mounting plate 51 toward the mounting surface, and a control unit 56 connected to the display unit 53 and the light source unit 55. It is composed of

FIG. 3 shows a terminal board mounting plate 51 of FIG.
In the position corresponding to the plurality of pins 1b of the terminal plate 1 described in the above, a through-hole having a diameter larger than the diameter of the pin 1b and smaller than the diameter that can be covered by the variation in the tip position at the prescribed bending value of the pin 1b.
51a is formed.

The light detecting section 52 has one end inside the housing 52a constructed so as to be able to shield light,
The optical fiber cable 54 is connected to a cut surface 54a on the other end of the optical fiber cable 54, and a light receiving element 52b such as a photodiode disposed near the surface 54a. is there.

The end of the optical fiber cable 54 on the terminal plate mounting plate 51 side is loosened by individual optical fibers 54b, and then the end 54b 'of each optical fiber 54b is connected to the terminal plate mounting plate 51 as described above. It is adhesively fixed to the mounting plate 51 in a state where it is inserted to a position where a constant depth d is left in the through hole 51a.

In this case, the depth d is set to at least the test pin inserted into the through-hole 51a (in the case of FIG.
The length exceeds the protruding length of the pin 1b) of the terminal plate 1 described in (1).

Further, the display section 53 connected to the light detecting section 52 and the light receiving element 52b located inside the light detecting section 52 is provided with two display lamps 53a and 53b on the surface thereof. When a light is received, one indicator light 53a lights up to display an NG signal, and when the light receiving element 52b does not receive light, the other indicator light 53b lights up to display an OK signal. Is controlled by a signal from a control unit 56 connected to the display unit 53.

The light source unit 55 includes a control unit 56 similar to the display unit 53.
Lighting and turning off are controlled by a signal from the display unit 53, and the signal is synchronized with the display unit 53. Therefore, in the state of FIG. 3 in which the terminal plate described in FIG. Since the light L from the light source unit 55 enters the light receiving element 52b from each through hole 51a of the terminal plate mounting plate 51 via the optical fiber 54b, the indicator lamp 53a of the display unit 53 is turned on.

In FIG. 2, (2-1) is the terminal plate 1 described in FIG.
Indicates the case where the terminal plate 1 is defective, and (2-2) indicates the case where the terminal plate 1 is defective. As shown in FIG. 1, the inspection jig 5 includes a terminal plate mounting plate 51, a light detection unit 52, a display unit 53, an optical fiber cable 54, a light source unit 55, and a control unit 56.

Then, when the pins 1b of the terminal plate 1 are mounted on the terminal plate mounting plate 51 so as to correspond to the respective through holes 51a of the terminal plate mounting plate 51, the terminal plate 1 is almost adhered to the terminal plate. Mounted on the mounting plate 51.

At this point, the control unit 56 is operated to
When the light source unit 55 is turned on at the same time when the power is supplied to the light receiving element 52b of the 52, if the terminal plate mounting plate 51 is a non-defective product (2
As shown in -1), since the light L from the light source unit 55 is completely blocked by the terminal plate 1, no light reaches the light receiving element 52b, so that the indicator lamp 53b of the display unit 53 is turned on and the OK signal is output. indicate.

However, the terminal board mounting plate 51 is indicated by (2-2).
When there is a portion where the pin 1b is missing, such as,,, a part of the light L from the light source section 55 is transmitted through the through hole 51a of the missing portion.
L _1, L _2, indicator 53a as a result, the display unit 53 respective light reaches the light receiving element 52b so enters as L ₃ displays an NG signal lights to the optical fiber 54b from.

Therefore, the quality of the terminal plate 1 mounted on the terminal plate mounting plate 51 can be easily detected by monitoring the display lamps 53a and 53b of the display unit 53. Pin 1b of terminal board 51
Is bent so that it cannot be inserted into the through hole 51a.In other words, when the pin 1b is bent beyond a specified value, the terminal plate 51 does not adhere to the terminal plate mounting plate 51. Since a gap is formed between the terminal plate 51 and the terminal plate mounting plate 51, which substantially corresponds to the protruding length of the pin 1b, a part of the light L from the light source unit 55 enters the optical fiber 54b from the gap. The indicator light 53a of the display unit 53 is turned on, and (2-2) the same NG display can be obtained.

[0031]

As described above, according to the present invention, the inspection of a multi-pole electronic device which improves the productivity by checking the total number of pins as an electronic device and inspecting the presence or absence of a bend exceeding a prescribed value of the pins with one touch. A jig can be provided.

In the description of the above embodiment, the case where the member to be inspected is a terminal plate is taken as an example. However, in this case, the terminal plate mounting plate may be a mounting plate adapted to the electronic device, and any electronic device may have the same configuration. Inspection can be done with an effect.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of an inspection jig according to the present invention.

FIG. 2 is a diagram illustrating a state at the time of inspection.

FIG. 3 is a diagram showing a conventional inspection method using a multi-pin terminal board as an example.

FIG. 4 is a diagram showing a conventional inspection method using a multipolar connector as an example.

[Explanation of symbols]

1 terminal plate 1b pin 5 inspection jig 51 electronic device (terminal plate) mounting plate 51a through hole 51b through hole 52 light detection section 52a housing 52b light receiving element 53 display section 53a, 53b indicator light 54 optical fiber cable 54a cut surface 54b Optical fiber 54b 'End face 55 Light source 56 Control

────────────────────────────────────────────────── (5) References JP-A-64-83163 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01R 43/00 G01R 31/02-31 / 04 G02B 6/00

Claims (1)

(57) [Claims] 1. A multi-electrode comprising a substrate or an insulator and straight pins or terminals projecting from at least one surface of each of the substrates or the insulator, and the pins or the terminals are fixed by through holes formed in the substrate or the insulator. An inspection jig for an electronic device, wherein the pin (1b) or a terminal protruding from the electronic device corresponds to a position corresponding to the pin (1b) or the terminal. 51a) An electronic device mounting plate (5
1), a light detection unit (52) connected to the electronic device mounting plate (51) via a multi-core optical fiber cable (54), a light receiving element (52) located in the light detection unit (52). 52b), a display unit (53) for exchanging signals with the electronic device mounting plate (5
A light source unit (55) disposed above the electronic device mounting surface of (1) toward the mounting surface, and a control unit (56) for controlling the display unit (53) and the light source unit (55). The ends of individually separated optical fibers (54b) forming one end of the optical fiber cable (54) are fixed at predetermined positions in respective through holes of the electronic device mounting plate (51),
A multipolar electronic device, wherein a cut surface (54a) at the other end of the optical fiber cable is disposed so as to face the light receiving element (52b) located in a light-shielded light detecting portion. Inspection jig.