JPH0441339Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to equipment used for inspecting printed circuit boards used in electronic equipment.

[Conventional technology]

Conventionally, the printed circuit board to be inspected is placed on a lower stand on which contact probes are disposed, the upper stand on which contact probes are disposed is closed, and the printed circuit board to be inspected is sandwiched between the upper and lower stands for inspection.

Alternatively, the printed circuit board to be inspected is mounted in a socket provided inside the inspection device and inspected.

[Problem to be solved]

However, in the above-mentioned inspection apparatus, there is a problem in that the small printed circuit board is placed in the back, making it difficult to attach and detach it, resulting in poor workability.

[Means for solving problems]

The present invention has been made in view of the above problems, and includes: a drive means that reciprocates back and forth; a flat cam that is reciprocated by the drive means and includes an inclined cam mechanism; and the inclined cam mechanism. a socket pedestal that is moved up and down by a part and reciprocated back and forth within a predetermined range in conjunction with the reciprocating movement of the driving means; a socket disposed above the socket pedestal for mounting a board to be inspected; A desired number of movable contact probes that are reciprocated by the driving means at the height of the board to be inspected when the socket base is in the forward position, or a desired number of fixed contact probes that come into contact with the board to be inspected when the socket base is in the forward position. At least one of the contact probes is configured, and by one reciprocating drive by the driving means, the socket base is raised to mount the board to be tested, and the socket base is lowered to place the contact probe on the surface of the board to be tested. A series of operations are performed in which the board is brought into contact and inspected, and after the inspection is completed, the socket base is raised again and the board to be inspected is removed.

[Effect]

In the printed circuit board inspection jig according to the present invention,
When the flat cam is retracted by the drive means, the socket base is pushed up by the inclined cam portion of the flat cam, so the socket provided on the socket base also rises.

At this time, the printed circuit board to be inspected is attached to the socket.

Next, when the flat cam is moved forward, the socket base is lowered along the inclined cam portion.

Further, when the flat cam is advanced, the movable contact probe comes into contact with one surface of the printed circuit board to be inspected, and the socket base is further advanced by the driving means.

Here, when the flat cam is further advanced, the socket base and the movable contact probe move forward while being in contact with each other, and the fixed contact probe comes into contact with the other surface of the printed circuit board to be inspected.

That is, since both surfaces of the printed circuit board to be inspected come into contact with the contact probes, the printed circuit board to be inspected is inspected.

When the inspection is completed, the driving means is retracted, the flat cam, the movable contact probe, and the socket base are retracted, and the printed circuit board to be inspected is separated from the fixed contact probe.

Furthermore, when retracted, the socket base stops at the rear end of its reciprocating range.

Further, when retracted, the moving contact probe separates from the surface of the printed circuit board to be inspected.

Then, when the board is moved back further, the inclined cam part of the flat cam pushes up the socket base, and the printed circuit board to be inspected that has been inspected is removed.

Then, if necessary, the next printed circuit board to be inspected is subsequently mounted and inspected.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the printed circuit board inspection jig according to the present invention will be described in detail below with reference to the drawings.

1 to 4 are diagrams showing a series of operations of the embodiment.

1 to 4, the flat cam 2 and the movable contact probe plate 9a are directly reciprocated left and right by the toggle clamp 1. As shown in FIGS. The fixed contact probe plate 9b and the roller plate 10 are fixedly mounted on a base 11.

The flat cam 2 has an inclined part 2a and a flat part 2b as its cam part, and the roller 3 has a slope part 2a and a flat part 2b as its cam part.
The socket base 4 is loosely inserted into the roller hole 0, and the spring 8
The contact probe plate 9b is elastically biased to the left by the contact probe plate 9b, and is provided so as to be movable between the stopper 12 and the fixed contact probe plate 9b.

The upper part of the socket base 4 is provided with a socket part 4a for setting the printed circuit board 5 to be inspected. The socket base 4 is elastically biased downward by a spring 7. Moving contact probe plate 9
A movable contact probe 6a is disposed at a.

In the flood control for printed circuit board inspection with the above configuration,
When the toggle clamp 1 is at the leftmost end, the flat cam 2 and the movable contact probe plate 9a are pulled to the left end. Therefore, the roller 3 is pushed up by the inclined portion 2a, and the socket 4a at the upper part of the socket base 4 comes to the upper surface of the device (FIG. 1).

Here, the printed circuit board 5 to be inspected is attached to the socket 4a.

Next, when the toggle clamp 1 is moved forward to the right, the inclined portion 2a moves and the socket base 4 and the roller 3 are lowered by the elastic biasing force of the spring 7, so that the printed circuit board 5 to be inspected is moved downward.
is the same height as the left and right contact probes 6a, 6b (FIG. 2).

Further, when the toggle clamp 1 is moved forward, the roller 3 is moved to the flat part 2b of the flat cam 2.
The movable contact probe 6a abuts the left side of the printed circuit board 5 to be inspected, and at the same time the movable contact probe plate 9a abuts the socket base 4 (FIG. 3).

Therefore, when the toggle clamp 1 is further advanced, the socket base 4 is pushed to the right by the toggle clamp 1 via the movable contact probe plate 9a, and the printed circuit board 5 to be inspected is pushed to the right by the toggle clamp 1.
The toggle clamp 1 is stopped at a position where the right side of the board contacts the fixed contact probe 6b of the fixed contact probe plate 9b.
Inspect.

After the inspection of the printed circuit board is completed, the toggle clamp 1 is moved back to the left.

First, as the toggle clamp retreats, the movable contact probe plate 9a retreats, and the socket base 4 moves to the left due to the elastic biasing force of the spring 8, and the printed circuit board 5 to be inspected is removed from the fixed contact probe 6b. break away.

Furthermore, when the movable contact probe plate 9a retreats, the socket base 4 comes into contact with the stopper 12 and stops (FIG. 3).

Further, when the toggle clamp 1 and the movable contact probe plate 9a retreat, the movable contact probe 6a also separates from the printed circuit board 5 to be inspected (FIG. 2).

Furthermore, when the toggle clamp 1 retreats,
The inclined portion 2a of the flat cam 2 is connected to the roller 3.
is pushed up to make the printed circuit board 5 to be inspected protrude from the upper surface of the apparatus via the socket base 4 (FIG. 1).

Therefore, the printed circuit board 4 to be inspected is removed to complete the inspection of one board.

In the above-described embodiment, the spring 8 is provided to move the socket base 4 backward, but a magnetic piece is fixed to the right end of the movable contact probe plate 9a, and the left end portion of the socket base 4 is formed of an iron piece or the like. Then, the movable contact probe plate 9a may be moved back to the stopper 12 position while being attracted to the movable contact probe plate 9a. Alternatively, a load-releasing type mutual latching means such as an elastic latching piece may be provided between the right end of the movable contact probe plate 9a and the left end portion of the socket base 4. In any case, in conjunction with the retraction of the toggle clamp 1, the socket base 4
It is only necessary to retreat the roller 3 to the upper part of the roller 3.

In this manner, according to the printed circuit board inspection jig according to the present invention, when the printed circuit board to be inspected is to be attached to and detached from the inspection device, the socket 4a is in the raised position, so that the substrate can be easily attached and detached. .

Moreover, the flat cam 2, socket 4, and left contact probe 6a are connected to one toggle clamp 1.
Since it is driven back and forth, the above effects can be obtained with a simple configuration.

〔effect〕

As described above, according to the printed circuit board inspection jig according to the present invention, the socket is raised and lowered by the inclined portion provided on the flat cam that is reciprocated by the driving means, so that the printed circuit board to be inspected can be easily attached and detached. The effect is that it can be done extremely easily.

[Brief explanation of the drawing]

1 to 4 are diagrams showing a series of operations of an embodiment of the printed circuit board inspection jig according to the present invention. 1...Toggle clamp, 2...Flat cam, 3...
Roller, 4... Socket stand, 5... Printed circuit board to be inspected, 6a... Moving contact probe, 6b
...Fixed contact probe, 9a...Moving contact probe plate, 9b...Fixed contact probe plate, 7, 8...Spring.

Claims (1)

[Scope of utility model registration request] a driving means that reciprocates back and forth; a flat cam that is reciprocated by the driving means and includes an inclined cam mechanism; and a flat cam that is moved up and down by the inclined cam mechanism and is linked to the reciprocating movement of the driving means. a socket base which is reciprocated back and forth within a predetermined range; a socket located above the socket base and into which a board to be inspected is mounted;
A desired number of movable contact probes are reciprocated by the driving means at the height of the board to be inspected when the socket base is fully lowered, or a desired number of movable contact probes are brought into contact with the board to be inspected when the socket base is in the forward position. At least one of the contact probes is a fixed contact probe, and by one reciprocating drive by the driving means, the socket base is raised to mount the board to be tested, and the socket base is lowered to move the contact probe to the board to be tested. A jig for inspecting a printed circuit board, characterized in that the jig performs a series of operations in which the socket base is brought into contact with the surface of the board for inspection, and after the inspection is completed, the socket base is raised again to remove the board to be inspected.