JPH0582227A - Inspection jig for multipole electron device - Google Patents

Abstract

PURPOSE:To realize the improvement of productivity by checking the total number of pins as an electron device and inspecting whether or not a bend of the pin exceeds a prescribed value by one-touch. CONSTITUTION:An electron device mounting board 51 is consisting of an opaque resin in which through holes 51a of diameter capable of covering the tip dispersion in a prescribed bending value of pin or terminal protruding from an electron device are formed. A light detecting part 52 is connected to the mounting board 51 through an optical fiber cable 54 of multi-fiber, and a light receiving element 52b situated in the detector 52 exchanges signals with a display part 53. Each end part of the optical fiber 54b separated each other forming one end of the cable 54 is fixed at each prescribed position of holes 51a of the mounting board 51. The cut surfaces 54a are arranged to face the element 52b located inside the light intercepted detecting part 52. Thus monitoring can be performed by display lamps 53a, 53b of the display part 53, productivity can be improved by checking the total number of pins and inspecting whether or not there is a bend of the pins exceeding a prescribed value with one-touch operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection jig for a multi-pole electronic device having many pins and terminals such as a terminal board and a connector, and more particularly to confirming the number of poles as an electronic device and pin The present invention relates to an inspection jig for a multipolar electronic device, which improves productivity by inspecting whether or not a terminal has a bend exceeding a specified value.

In the field of electronic equipment in recent years, in order to cope with high integration, downsizing, and cost reduction of semiconductor devices, for example, a signal line connecting terminal plate having several thousand pins, a connector having several hundred terminals, and the like. The multi-polar electronic device has been put into 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.

In the case where the electronic device is a terminal board in FIG. 3, the terminal board 1 can be fixed to the board 1a and a plurality of through holes 1a 'formed in the board 1a by means such as press fitting. The through-hole 1a 'of the substrate 1a is formed so that the group of "b" -shaped holes that circulate in a square shape are located in a grid pattern with a further equal pitch. Perforated.

Therefore, for example, a terminal board 1 shown in the figure is obtained by press-fitting and fixing the pin 1b into the through holes 1a 'so that both ends of the pin 1b project from both sides of the board 1a by a press-fitting machine (not shown). You can

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

Therefore, a visual inspection at the time when the terminal board 1 is completed checks the total number of the pins 1b for missing or bending. Further, in FIG. 4 showing the case of a plug connector as an example, a plug connector (hereinafter referred to as a connector) 2 is provided with an insulator 2b so that a plurality of plug terminals (hereinafter referred to as terminals) 2a are in a zigzag pattern with an equal pitch. A contact pin 2a ′ located at one end of the terminal 2a and an external connection part 2 located at the other end of the terminal 2a.
a "and" a "respectively project on both sides in the thickness direction of the insulator 2b.

The terminal 2a is fixed to the through holes 2b 'formed in the insulator 2b at the above-mentioned plural places by means of, 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 ′ may be bent in all the through holes 2b ′ as in the case of FIG. 2a may not be inserted and fixed.

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

[0010]

However, in any of the cases shown in FIGS. 3 and 4, since the missing state and bending state of the pins and terminals are dependent 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 I could not get it.

Recently, a technique has been put into practical use, in which the above-mentioned inspection required area is copied by a TV camera or the like to check for missing or bending of each of the pins or terminals described above, but it is expensive in price. It is difficult to use for general purpose because it requires special technique for operation.

[0012]

SUMMARY OF THE INVENTION The above-mentioned problems are constituted by a substrate or an insulator and a straight pin or terminal projecting from at least one surface of each, and the pin or terminal penetrates through the substrate or the insulator. An inspection jig for a multipolar electronic device, which is fixed by a hole, having a diameter that can be covered by a variation in the tip of the pin or terminal at a specified bending value at a position corresponding to the pin or terminal protruding from the electronic device. An electronic device mounting plate made of an opaque resin in which a hole is formed, and a light detection unit connected to the electronic device mounting plate via a multicore optical fiber cable,
A display unit connected to a light receiving element located in the light detection unit to exchange 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 portion of the 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 an inspection jig for a multi-pole electronic device, which is arranged so as to face the above-mentioned light receiving element located in the light detection section where the cut surface at the other end of the optical fiber cable is shielded.

[0013]

In the electronic device constructed by inserting the pins or terminals into the through holes of the substrate or the insulator like the terminal board shown in FIG. 3 or the connector shown in FIG. There is a through hole for fixing the pin or terminal.

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

This is because such an electronic device can be easily set on the inspection jig, and if the pin or the terminal is bent more than a specified value, the electronic device cannot be attached to the inspection jig in a close contact state. This means that a bend exceeding the specified value for a pin or terminal can be detected.

Therefore, it is possible to easily and surely inspect the presence or absence of a pin or a terminal as an electronic device and the bending more than a specified value without applying a special man-hour, and the productivity can be improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining a structural example of an inspection jig according to the present invention, and FIG. 2 is a diagram for explaining a state at the time of inspection.

All of the figures are the terminal plates 1 described with reference to FIG.
The case of the connector 2 shown in FIG. 4 will be described as an example.
In this case, by replacing the terminal plate mounting plate of FIG. 1 which will be described later with a mounting plate matching the terminal 2a of the connector 2, the connector 2
Since a required inspection jig corresponding to the above can be configured, the description thereof will be omitted.

In FIG. 1, the inspection jig 5 connects 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 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 the display unit 53 and a control unit 56 connected to the light source unit 55. It consists of and.

The terminal plate mounting plate 51 in this is shown in FIG.
A through hole having a diameter larger than the diameter of the pin 1b at a position corresponding to the plurality of pins 1b of the terminal board 1 described in 1. and a diameter smaller than a diameter that can be covered by the variation in the tip position at the specified bending value of the pin 1b.
51a is formed.

Further, the light detecting portion 52 is provided inside the housing 52a constructed so as to be shielded from light, and one end thereof is the above-mentioned terminal board mounting plate.
The optical fiber cable 54 is connected to the above-mentioned optical fiber cable 54, and is formed by disposing a cut surface 54a on the other end side cut and a light receiving element 52b such as a photodiode arranged in the vicinity facing the surface 54a. is there.

The end portion of the optical fiber cable 54 on the side of the terminal plate mounting plate 51 is loosened into individual optical fibers 54b, and the end portions 54b 'of the respective optical fibers 54b are the above-mentioned portions of the terminal plate mounting plate 51. It is adhesively fixed to the mounting plate 51 in a state of being inserted into the through hole 51a to a position where a constant depth d is left.

In this case, the depth d is at least the test pin to be inserted into the through hole 51a (see FIG.
The length is longer than the protruding length of the pin 1b) of the terminal board 1 described in the above.

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

The light source unit 55 is similar to the display unit 53 in the control unit 56.
Lighting and extinguishing are controlled by a signal from, but the signal is synchronized with the display unit 53. Therefore, in the state shown in FIG. 3 in which the terminal board described in FIG. 3 is not mounted on the terminal board mounting board 51, when the light source element 55 is turned on at the same time as power is supplied to the light receiving element 52b by a signal from the control section 56, 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, so that 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 that the terminal board 1 is non-defective and (2-2) indicates that the terminal board 1 is defective. As shown in FIG. 1, the inspection jig 5 is composed of a terminal plate mounting plate 51, a light detecting section 52, a display section 53, an optical fiber cable 54, a light source section 55 and a control section 56.

Therefore, when the pins 1b of the terminal plate 1 are attached to the terminal plate mounting plate 51 so as to correspond to the through holes 51a of the terminal plate mounting plate 51, the terminal plate 1 is attached to the terminal plate 1 in a substantially adhered state. It is mounted on the mounting plate 51.

At this point, the controller 56 is activated to activate the light detector.
When the light source unit 55 is turned on at the same time when the light receiving element 52b of 52 is turned on, when the terminal plate mounting plate 51 is a good product (2
As shown in -1), since the light L from the light source 55 is completely blocked by the terminal board 1, there is no light reaching the light receiving element 52b. Therefore, the indicator 53b of the display 53 is turned on and the OK signal is transmitted. indicate.

However, the terminal plate mounting plate 51 is indicated by (2-2).
If there is a portion where the pin 1b is missing, such as ,, a part of the light L from the light source 55 is passed through the through hole 51a of the missing portion.
Since the light enters the optical fiber 54b like L ₁ , L ₂ , and L ₃ , the respective lights reach the light receiving element 52b, and as a result, the indicator lamp 53a of the display unit 53 is turned on to display the NG signal.

Therefore, by monitoring the indicator lights 53a and 53b of the display section 53, it is possible to easily detect the quality of the terminal board 1 mounted on the terminal board mounting plate 51. In addition, pin 1b of terminal board 51
When a part of the pin 1b is bent so that it cannot be inserted into the through hole 51a, in other words, when the pin 1b is bent more than a specified value, the terminal plate 51 does not come into close contact with the terminal plate mounting plate 51. Since a gap approximately corresponding to the protruding length of the pin 1b is formed between the terminal plate 51 and the terminal plate mounting plate 51, a part of the light L from the light source unit 55 enters the optical fiber 54b through the gap. The indicator lamp 53a of the display unit 53 lights up, and the same NG display can be obtained (2-2).

[0031]

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

In the above description of the embodiment, the case where the member to be tested is a terminal plate is taken as an example, but in this case the terminal plate mounting plate is a mounting plate adapted to the electronic device, so that any electronic device is equivalent. Can be effectively tested.

[Brief description of 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 board 1b Pin 5 Inspection jig 51 Electronic device (terminal board) mounting board 51a Through hole 51b Through hole 52 Photodetector 52a Housing 52b Light receiving element 53 Display 53a, 53b Indicator 54 Optical fiber cable 54a Cut surface 54b Optical fiber 54b ′ End surface 55 Light source section 56 Control section

Claims (1)

[Claims] 1. A multipole device comprising a substrate or an insulator and a straight pin or terminal protruding from at least one surface of each substrate, and the pin or terminal being fixed by a through hole formed in the substrate or the insulator. An inspection jig for an electronic device, wherein the pin (1b) protruding from the electronic device or a terminal at a position corresponding to the bending of the pin (1b) or the terminal has a through hole having a diameter that can be covered by the variation in the tip at a specified value ( 51a) is formed on the electronic device mounting plate (5
1), a photodetection section (52) connected to the electronic device mounting plate (51) via a multi-core optical fiber cable (54), and a photodetector located in the photodetection section (52) ( 52b) and a display unit (53) for transmitting and receiving signals, the electronic device mounting plate (5)
The electronic device mounting surface of 1) is provided with a light source unit (55) disposed toward the mounting surface, and the display unit (53) and a control unit (56) for controlling the light source unit (55). Configured, the end of the individually separated optical fiber (54b) forming one end of the optical fiber cable (54) is fixed at a predetermined position in each through hole of the electronic device mounting plate (51),
A multipolar electronic device characterized in that it is arranged so that a cut surface (54a) at the other end of the optical fiber cable faces the light receiving element (52b) located in a light-shielded light detecting section. Inspection jig.