JPH0666868A - General relay pin jig for pattern checker of printed wiring board - Google Patents

Abstract

PURPOSE:To provide a general relay pin jig for a pattern checker of a printed wiring board which enables the pattern check of large-size printed wiring boards of various forms and facilitates the stage replacement without requiring a large storing space. CONSTITUTION:A general relay pin jig for a pattern checker for a printed wiring board having a number of relay pins is used by placing each relay pin on a pattern checker so that one end is in contact with the check pin of the pattern checker, and pressing the other end of each relay pin onto the test point of a printed wiring board to be inspected. This relay pin jig 10 is divided into a plurality of rectangular parallelepiped blocks 12 of the same form, and positioning pins 16 are protruded on each block 12. Each positioning pin 16 is inserted to each positioning guide hole 22 of a positioning mating plate 18 having the positioning guide holes 22, whereby, the whole body is positioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general purpose relay pin jig for a pattern checker of a printed wiring board. In recent years, the density of electronic components has been increasing more and more, and along with this, the multilayering and high density patterning of printed wiring boards mounting these electronic components have been further advanced. For this reason, in order to improve the manufacturing yield of the printed wiring board, automation of checking the wiring pattern has become a common sense in the manufacturing process.

The automation of this wiring pattern check is
It is usually done using a pattern checker. That is, at present, a pattern of a printed wiring board is generally created by CAD, but on the other hand, a pattern is printed on a film from the source data created by CAD, and the printed wiring board is processed through various steps. On the other hand, on the other hand, check data is created from the same source data, and this is subjected to a pattern checker to check the pattern of the manufactured printed wiring board.

There is a type of pattern checker in which a relay pin jig having a large number of relay pins is interposed between the printed wiring board to be inspected and the pattern checker to check the pattern of the printed wiring board. 2.54mm standard for this type of pattern checker
A general-purpose relay pin jig having a terminal pitch of (0.1 inch) and a dedicated relay pin jig for checking a pattern of a printed wiring board including a narrower terminal pitch such as a terminal pitch of 1.27 mm. Use both ingredients properly.

In this case, the general-purpose relay pin jig becomes heavier as the size becomes larger, and the setup change becomes substantially difficult. Therefore, the general-purpose relay pin jig is not so heavy and the setup change is easy to use A relay pin jig is required.

[0005]

2. Description of the Related Art A conventional general-purpose relay pin jig is constructed by inserting a large number of relay pins into a large integrated block in order to obtain positional accuracy of the relay pins.

[0006]

However, the weight of the relay pin jig is generally about 10 to 2 per 10,000 points.
Since the weight is 0 kg, there is a problem in that the conventional integral type relay pin jig having 20000 points or more is very heavy and difficult to handle.

Further, when the relay pin jig becomes large, the maintenance of the relay pin jig and the pattern checker is hindered. Furthermore, if the pattern checker has a limited press capability, it is necessary to use a relay pin jig that matches the shape of the printed wiring board, such as a rectangle or a square, and conventional general-purpose relay pin jigs cannot handle this. There was a problem.

The present invention has been made in view of the above points, and an object of the present invention is to enable pattern checking of large-sized printed wiring boards of various shapes and to require much storage space. It is an object of the present invention to provide a general-purpose relay pin jig for a pattern checker of a printed wiring board, which can be easily set up.

[0009]

In order to solve the above problems, the present invention is mounted on a pattern checker such that one end of each relay pin abuts a check pin of the pattern checker, and A general-purpose relay pin jig for a pattern checker of a printed wiring board, which has a large number of relay pins and is used by pressing the other end to a test point of the printed wiring board to be inspected. Divide into a plurality of rectangular parallelepiped blocks, project the positioning pins on each block, and insert each positioning pin into each positioning guide hole of the positioning alignment plate with positioning guide holes to align the entire position. A general-purpose relay pin jig for a pattern checker of a printed wiring board, which is characterized by being performed.

According to another aspect of the present invention, one end of each relay pin is placed on the pattern checker so as to abut the check pin of the pattern checker, and the other end of each relay pin of the printed wiring board to be inspected. A general-purpose relay pin jig for a pattern checker of a printed wiring board having a large number of relay pins that is pressed against a test point and is used.The relay pin jig is divided into a plurality of blocks of the same shape, Provided is a general-purpose relay pin jig for a pattern checker of a printed wiring board, which is characterized in that a positioning mechanism is provided at a connecting portion.

[0011]

Since the relay pin jig is divided into a plurality of blocks having the same shape, it is easy to handle and does not require a large storage space. Also, by rearranging the blocks, it is possible to easily accommodate printed wiring boards having any shape and size.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a perspective view of a first embodiment of the present invention. The general-purpose relay pin jig 2 of this embodiment is composed of a plurality of rectangular parallelepiped blocks 4 having the same shape and a pair of holding frames 6. The block 4 is formed with a pair of protrusions 4a and / or a pair of cutout grooves 5 into which the protrusions 4a fit.
Positioning in the Y direction is performed by fitting the respective protrusions 4a into the cutout grooves 5, and positioning in the X direction is performed by pressing both side surfaces of the block assembled by the pair of pressing frames 6.

In this embodiment, the relay pin inserted in each block 4 is omitted. Instead of the pressing frame in the X direction, the position of the combined block may be adjusted by the entire frame that presses the entire combined block.

Referring to FIG. 2, there is shown an exploded perspective view of a second embodiment of the present invention. The general-purpose relay pin jig 10 of this embodiment is composed of a plurality of rectangular parallelepiped blocks 12 having the same shape, into which a large number of relay pins 14 are inserted, and a positioning plate 18.

A pair of positioning pins 16 are projected on the upper surface of each rectangular parallelepiped block 12, and a plurality of positioning guide holes 22 are formed in the mating plate 18 at positions corresponding to the positioning pins 16. The pin insertion hole 20 provided in the mating plate 18 of this embodiment is formed to be large so that each relay pin 14 can be easily inserted.

Arrange the rectangular parallelepiped blocks 12 as shown in the drawing,
The general-purpose relay pin jig 10 is positioned and assembled by inserting the positioning pins 16 into the positioning guide holes 22 of the mating plate 18.

Instead of providing a large number of holes 20 for inserting the relay pins 14 in the mating plate 18, the mating plate 1 corresponding to the area where the relay pins 14 in the combined block are provided.
You may hollow out 8 parts. Instead of the configuration described above, positioning pins may be provided on the mating plate 18 and positioning guide holes may be provided in each block 12.

FIG. 3 shows a sectional view of a third embodiment of the present invention, which is a modification of the above-mentioned second embodiment. In this embodiment, instead of positioning with the positioning pin and the positioning guide hole, the relay pin insertion hole 20 'provided in the mating plate 18' is formed with extremely high precision, and each relay pin 14 is inserted into the relay pin insertion hole 20 '. The entire jig is positioned by inserting into the. The relay pin insertion hole 20 'has an accuracy of ± 0.2 mm.

Referring to FIG. 4, there is shown a perspective view of a fourth embodiment of the present invention. In this embodiment, a large number of relay pins 3
Each block 32 in which 4 is inserted is provided with a positioning mechanism by fitting.

That is, a pair of first protrusions 36 and a first fitting groove 38 are provided at one joint portion of each block 32 except the blocks at both ends, and the first protrusion 36 and the first joint groove 38 are provided at the other joint portion.
The fitting groove 38 forms a pair of second fitting groove 42 and the second protrusion 40 which are fitted with each other. Then, only the pair of first protrusions 36 and the first fitting groove 38 or only the pair of the second protrusions 40 and the second fitting groove 42 are formed in the blocks 32 at both ends.

By fitting the first projection 36 into the second fitting groove 42 of the adjacent block 32 and fitting the first fitting groove 38 into the second projection 40 of the adjacent block 32, the fitting is achieved. The adjacent blocks are positioned and the general purpose relay pin jig 30 is assembled.

Referring to FIG. 5, there is shown a fifth embodiment of the present invention, in which (A) is a schematic exploded perspective view and (B) is a partial sectional view thereof. Each block 52 of this embodiment
Is a base block 54 having a square cross section, and a protruding block 56 having a cross section of the same shape and size as the base block 54, which is integrally formed on the upper surface of the base block 54 with a predetermined distance offset in the direction of extension of the diagonal line. Composed of. As a result, each block 52 has a step portion 54a,
A projecting portion (overhang portion) 56a that exactly overlaps the step portion 54a is formed.

To assemble the general purpose relay pin jig 50,
Aligning the blocks 52 so that the protrusions 56a of the blocks 52 overlap the stepped portions 54a of the adjacent blocks 52,
As shown in FIG. 5B, the relay pin 58 is connected to one block 5
The adjacent blocks are positioned and integrated by being inserted into the base block 54 of the adjacent block 52 through the two protruding portions 56a. In this example,
Although the alignment is performed by the two rows of relay pins 58, the alignment may be performed by one row of relay pins or three or more rows of relay pins.

Next, with reference to FIG. 6, a method of coping with various board shapes of the present invention when the number of test points exceeds the pressing ability of the pattern checker will be described. For example, in the case of a pattern checker having a maximum number of test points of 60,000 points and a maximum pressing capacity of 30,000 points, the following general-purpose relay pin jigs are assembled and used according to the board shape.

If the substrate to be pattern-checked is vertically long, an XAxYC relay pin jig is assembled to handle it. On the other hand, when the board to be pattern-checked is horizontally long, an XCxYA relay pin jig is assembled to handle it.

Further, when the substrate to be pattern-checked is a square, an XBxYB relay pin jig is assembled to handle it.

[0027]

As described above in detail, according to the present invention, a general-purpose relay pin jig is constructed by accurately positioning and assembling a plurality of divided blocks. It is possible to check the pattern of the printed wiring board.

Further, it does not require much storage space,
There is also an effect that setup change is easy. Further, it is possible to properly use the general-purpose relay pin jig and the dedicated relay pin jig according to the present invention with one pattern checker.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of essential parts of a third embodiment of the present invention.

FIG. 4 is a perspective view of a fourth embodiment of the present invention.

5A and 5B are views showing a fifth embodiment of the present invention, in which FIG. 5A is an exploded perspective view and FIG.

FIG. 6 is a diagram for explaining how to deal with various board shapes.

[Explanation of symbols]

 4,12,32,52 Block 6 Holding frame 14,34,58 Relay pin 16 Positioning pin 18 Mating plate 22 Positioning guide hole 36,40 Protrusion 38,42 Fitting groove 54a Step 56a Projection

Claims (6)

[Claims] 1. The relay pin is mounted on a pattern checker so that one end of the relay pin contacts a check pin of the pattern checker, and the other end of each relay pin is pressed against a test point of a printed wiring board to be inspected for use. A general-purpose relay pin jig for a pattern checker of a printed wiring board having a large number of relay pins, wherein the relay pin jig (10) is formed into a plurality of rectangular parallelepiped blocks (1
2), each block (12) is provided with a positioning pin (16), and each positioning guide hole (22) has a positioning guide hole (22). A general-purpose relay pin jig for a pattern checker of a printed wiring board, characterized in that the positioning of the whole is performed by inserting the positioning pin (16). 2. The printed wiring according to claim 1, wherein each block (12) is provided with a positioning guide hole (22), and a positioning pin (16) is projected from the mating plate (18). General purpose relay pin jig for board pattern checker. 3. The relay pin is mounted on a pattern checker so that one end of the relay pin contacts the check pin of the pattern checker, and the other end of each relay pin is pressed against a test point of a printed wiring board to be inspected for use. A general-purpose relay pin jig for a pattern checker of a printed wiring board having a large number of relay pins, in which the relay pin jig (30, 50) is formed into a plurality of blocks (32,
A general-purpose relay pin jig for a pattern checker of a printed wiring board, characterized in that it is divided into 52) and a positioning mechanism is provided at the joint of each block (32, 52). 4. A pair of first protrusions (36) and a first fitting groove (38) provided with the positioning mechanism at one coupling part, respectively.
The first protrusion (36) and the first fitting groove provided on the other coupling portion
(38) A pair of second fitting grooves each having a shape that fits exactly
The general-purpose relay pin jig for a pattern checker of a printed wiring board according to claim 3, characterized in that the jig comprises a (42) and a second protrusion (40). 5. A base block (54) having a square cross section and a cross section integrally formed on the upper surface of the base block (54) by displacing a predetermined distance in the diagonal extension direction. The base block (54) and the protruding block (56) of the same shape and size, the protruding block (5)
It is possible to position and connect adjacent blocks (52) by overlapping the protruding part (56a) of 6) with the step part (54a) of the other party to be connected and inserting the relay pin (58) into the pin hole. A general-purpose relay pin jig for a pattern checker of a printed wiring board according to claim 3. 6. The pattern checker for a printed wiring board according to claim 3, wherein the outer shape of the block (4) joined by an outer frame (6) of a predetermined shape is regulated to align the entire structure. General purpose relay pin jig.