JPH04307998A - Insertion auxiliary tool for multilead component - Google Patents

Abstract

PURPOSE:To provide an insertion auxiliary tool for correcting a bent of a long lead and guiding to insert it in the tool for mounting a multilead component in which long leads are arranged on a lattice position of a predetermined pitch on a printed board. CONSTITUTION:A U-shaped frame body 2 in which circular sectional short pins 3 are implanted linearly in parallel to each other at a predetermined gap for passing leads 91 to match a predetermined pitch, and a detachable auxiliary unit 4 in which circular sectional long pins 5 are implanted linearly in parallel to each other at a predetermined gap for passing the leads 91 to match a predetermined pitch, inserted from one side of opposed pieces of the body 2 to be perpendicular to the pins 3 in such a manner that the end reaches the other to be held, are provided. Further, at least two through holes are opened at a printed board of the vicinity for mounting a multilead component, and a plurality of protrusions to be engaged with the holes are provided for aligning on one surface of the body.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion aid for mounting a multi-lead component, in which long leads are arranged in grid positions at a predetermined pitch, on a printed board.

In printed board mounting, in which components are mounted on a printed board to form a circuit, in order to increase mounting efficiency and improve productivity, a lattice with a predetermined vertical and horizontal pitch is provided in the mounting area of the printed board, and the parts to be mounted are All of the shapes occupy the continuous area of the grid, and the connection terminals are arranged uniformly at the intersections of the grids within the occupied area.

On the other hand, due to the miniaturization and higher performance of components, printed circuit boards are required to be mounted with higher density, and the pitch of the mounting grid is becoming finer, and the number of terminals of mounted components is being promoted. It is desired that this multi-terminal component can be mounted on a printed board without difficulty.

0004

2. Description of the Related Art FIG. 3 shows an example of a conventional multi-lead component. Typical examples of conventional multi-lead parts include:
An example is a connector as shown in FIG.

[0005] Electronic devices are constructed by combining a large number of circuit units that constitute electronic circuits on a printed board, and as parts become smaller and higher performance, circuit units are increasingly being mounted in higher density, and therefore, the circuits are more closely connected to the outside. The connector of the circuit unit that makes the connection has become a typical component that is becoming smaller and has more terminals, and of course the integrated circuit components and circuit modules that are mounted are also becoming more terminal-rich. .

The multi-lead component 9 of the connector shown in FIG.
This is a connector that fits and connects to the connector of a circuit unit with a printed board configuration (not shown).As shown in the diagram, contacts are arranged in three rows at a predetermined pitch in a housing that forms the outer shape, and a printed circuit board is printed on the back side. Leads 91 connected to the board are arranged in three rows in a mounting grid with a predetermined pitch and protrude.

This lead 91 is inserted into a through hole provided in a printed circuit board and is soldered to make a wiring connection.In addition, the lead 91 is long so that a plurality of external wirings can be connected directly by wrapping. .

[0008]

[Problem to be solved by the invention] However, ■
The long leads 91 of this multi-lead component 9 are easily bent during handling, causing the tip to be misaligned, resulting in poor workability when inserting into a printed board. (2) Furthermore, the more the number of leads 91 increases, and the smaller the interval between the leads 91, the more difficult and time-consuming the work becomes. ■
Therefore, this type of component 9 cannot be automatically inserted into a printed circuit board. There were problems such as.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide an auxiliary tool for correcting the bending of long leads and guiding insertion.

0010

[Means for solving the problem] The above purpose is as shown in Figures 1 and 2.
As shown in (1) an insertion aid 1 for mounting a multi-lead component 9 in which long leads 91 are arranged in lattice positions at a predetermined pitch on a printed board 8, the short pins 3 having a circular cross section are
A U-shaped frame main body 2 and a long pin 5 with a circular cross section are installed in a straight line and parallel to each other at a predetermined pitch with a predetermined gap through which the leads 91 are passed. They are opened and planted in a straight line in parallel at a predetermined pitch, inserted from one of the opposing pieces of the frame body 2, perpendicular to the short pin 3, and held when the tip reaches the other side, and can be freely inserted and removed. This is achieved by the multi-lead component insertion aid 1 of the present invention, which comprises an auxiliary body 4 of the present invention. ■ Furthermore, on the printed board 8 near where the multi-lead component 9 is mounted,
At least two through holes 81 are bored, and a plurality of protrusions 2 are provided on one surface of the frame body 2 to fit into the through holes 81.
The present invention can also be applied to the aforementioned multi-lead component insertion aid 1, which is provided with numeral 1 for positioning.

[0011]

[Function] When the insertion aid 1 is viewed from above, the gap between the short pin 3 and the long pin 5 overlaps at right angles, that is, the hole shape is surrounded by the short pin 3 and the long pin 5. The lead 91 can pass only through this hole-like part, and by inserting the lead 91, the tip is guided into the gap along the curved surface of the pin and corrected. Ru.

[0012] Therefore, if this hole-shaped portion is aligned with the insertion position of the lead 91 of the printed board 8 and the insertion aid 1 is fixed, the rest is easy by simply inserting the component 9 into the insertion aid 1. The lead 91 is straightened, and the tip can be guided and inserted into the through hole of the printed board 8. In the inserted state, the insertion aid 1 is removed, and finally, the component 9 is inserted until it comes into contact with the printed board 8. Bye.

[0013] In this insertion aid 1, the auxiliary body 4 is inserted into and removed from the frame body 2, so that when the auxiliary body 4 is removed, the frame body 2 can be removed with the component 9 inserted. Can be done.

Of course, it is also possible to have an automatic machine perform a series of operations such as setting the insertion aid 1 on the printed board 8, inserting the component 9, removing the insertion aid 1, and finally inserting the component 9. .

Furthermore, when setting the insertion aid 1 on the printed board 8, the projections 21 provided on the frame body 2 are fitted into the plurality of through holes 81 made in the printed board 8, thereby adjusting the position. Ejecting can be done accurately and easily.

[0016] Thus, by using the insertion aid of the present invention, it is possible to easily correct the bending of a long lead and guide its insertion into a printed board.

[0017]

EXAMPLES The present invention will be specifically explained below with reference to examples shown in the drawings. The same reference numerals indicate the same objects throughout the figures. FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 shows a procedure for inserting components using the insertion aid of the present invention.

In this embodiment, the multi-lead component 9 shown in FIG. 3 in the conventional example described above is inserted into the printed board 8. As shown in the figure, the multi-lead component 9 of the connector shown in FIG. are arranged in three rows in a mounting grid with a pitch of 2.54 mm and protrude.

This lead 91 is inserted into a through hole provided in the printed circuit board 8 and is soldered to make a wiring connection.In addition, a 20 mm long lead 91 is used so that a plurality of external wirings can be connected directly by wrapping. The lead 91 has a cross section of 0.5 mm square. The housing has a flange-like part, and one fixing hole 92 for fixing to the printed board 8 is provided at each end in the longitudinal direction. A through hole 81 is bored at a position corresponding to the hole 92.

As shown in FIG. 1, the insertion aid 1 of the present invention includes a frame body 2 and an auxiliary body 4 that is removably inserted into the frame body 2.
It consists of The frame main body 2 is made of stainless steel and has short pins 3 of 2 mmφ installed horizontally in parallel in a straight line at a pitch of 2.54 mm in a vertically long U-shaped frame. Here, the number of short pins 3 is one less than the number of leads 91 in one row of the multi-lead component 9, and therefore, 0.54 m between the short pins 3 and between both side walls and the short pins 3.
A gap of m is created for the number of leads 91 in one row.

Further, on the surface of the opposing piece of the frame body 2 facing the printed board 8, a convex portion 21 of 2φ×2 mm is provided in alignment with the position of the fixing hole 92 of the multi-lead component 9. The auxiliary body 4 has three long pins 5 of 2 mmφ each having a length corresponding to the length of one row of leads 91 of the multi-lead component 9.
．． The long pins 5 are inserted into the through holes 22 of one of the opposing pieces of the frame main body 2, and the tip is inserted into the through hole 23 of the other side. Retained. In this state, the long pins 5 are perpendicular to the short pins 3, and three 0.54 mm gaps are formed between the long pins 5 and between the end long pins 5 and the side wall of the frame body 2 at a pitch of 2.54 mm. Note that the auxiliary body 4 can be easily removed from the frame body 2 by pulling it.

The inner surface of the frame body 2 is a tapered surface that widens upward from the middle. This multi-lead component 9
The procedure for inserting the
They are as shown in a) to (e), and will be explained in order below.

First, the assembled insertion aid 1 is placed in a predetermined position on the printed board 8 as shown in (a), and the convex portion 21 is fitted into the through hole 81 of the printed board 8 and fixed. Next, (b
) When the component 9 is inserted into the insertion aid 1, the tip of the lead 91 first contacts the long pin 5, is guided along its curved surface, and falls into a predetermined gap between them, for example, along the X axis. Correction is made in the direction.

Further, when it is inserted, it comes into contact with the orthogonal short pins 3 on the lower layer, falls into the gap, and is corrected in a direction perpendicular to the previous correction direction, so that it is corrected to the correct placement position. Furthermore, if the leads 91 are inserted as they are, the tips of the leads 91 will be reliably inserted into the through holes of the printed board 8.

With this tip inserted, (c)
Remove the auxiliary body 4 of the insertion aid 1 as shown, and then (
d) The frame body 2 is removed and the insertion aid 1 is removed, as shown in FIG.

Finally, as shown in (e), the component 9 may be inserted until it comes into contact with the printed board 8. Thus,
This multi-lead component 9 can be easily inserted and attached without any manual modification of the leads 91.

The above embodiment is an example, and the shapes, dimensions, and materials of each part are not limited to those mentioned above, and the multi-lead component 9 is not limited to connectors, but can also be used at lattice points at a predetermined pitch. It is clear that the same method can be applied to multi-lead components with long leads.

[0028]

As described above, by using the insertion aid of the present invention, it is easy to straighten the long leads of a multi-lead component, guide the insertion into the printed board, and increase the number of leads. Regardless of the arrangement pitch, it can be easily inserted without failure, the time required to manually insert the connector is reduced to 1/3 of the conventional method, and it is also compatible with automatic insertion machines, making it practical. The effect is significant.

[Brief explanation of drawings]

[Figure 1] Block diagram of one embodiment of the present invention

[Figure 2] Procedure for inserting parts using the insertion aid of the present invention

[Figure 3]
Conventional example of multi-lead parts

[Explanation of symbols]

1 Insertion aid 5
Long pin 22, 23, 81
Through hole 2 Frame body 8 Printed board 91 Lead 3 Short pin 9
Multi-lead component 92 Fixing hole

Claims (2)

[Claims] Claim 1: A multi-lead component (9) in which long leads (91) are arranged in grid positions at a predetermined pitch is mounted on a printed board (
8) An insertion aid (1) for mounting on,
A U-shaped frame body (2) in which short pins (3) with a circular cross section are installed in a straight line and in parallel at a prescribed pitch with a prescribed gap through which the leads (91) pass; Pins (5) with long cross-sections are planted straight and parallel to each other at a predetermined pitch with a predetermined gap for passing the leads (91), and are inserted from one of the opposing pieces of the frame body (2). and a removable auxiliary body (4) which is perpendicular to the short pin (3) and whose tip reaches and is held by the other short pin (3). 2. At least two through holes (81) are provided in the printed board (8) near where the multi-lead component (9) is mounted.
), and a plurality of protrusions (21) that fit into the through holes (81) are provided on one surface of the frame body (2) for positioning. The insertion aid for multi-lead components described in 1.