JPH01300599A - Apparatus for inserting a multiplicity of pins - Google Patents

Abstract

PURPOSE:To enable a multiplicity of pins to be inserted in a substrate relatively easily by means of a relatively simple apparatus by providing the apparatus with a pin jig, an air press-in chamber for supplying compressed air to preparing holes in the pin jig and a substrate sucker for moving the substrate vertically. CONSTITUTION:Prior to inserting a multiplicity of pins in a substrate 1, the pins 5 are previously inserted in preparing holes 22 of a pin jig 21. The substrate 1 is then disposed over the pin jig 21 by a substrate sucker 3 such that the substrate 1 is present above the upper ends of the pins 5 with a small distance therebetween and the pin holes 11 of the substrate are opposed to the respective upper ends of the pins 5 inserted in the preparing holes. Then, compressed air is introduced into an air charging chamber 24 and injected through the preparing holes 22 whereby the pins 5 are lifted up a little while vibrated and finally the heads of the pins are fitted in the pin holes 11 of the substrate 1. In this manner, a multiplicity of pins can be inserted in the substrate easily by means of the pin jig, the compressed air and the substrate sucker. Further, such inserting apparatus can be manufactured in simplified construction at a lower cost.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insertion device for inserting a large number of pins, such as inserting pins into through holes of a printed circuit board.

[Prior art]

Printed circuit boards for electronic circuits have 1 through hole.
A large number of pins, for example 50 to 100, are inserted.

However, when inserting a large number of pins into this board, conventionally image processing technology is used to position the through holes of the board and the pin jig in which the pins are placed in advance.
The board was then lowered and the pins were mounted in the through holes.

[Problem to be solved]

However, such conventional pin insertion devices.

Since image processing is used, the device is complicated and expensive. Moreover, the operation is also complicated.

In view of the problems of the prior art, the present invention aims to provide a relatively simple and low-cost insertion device for multiple pins.

[Means for solving problems]

The present invention is an insertion device for inserting pins into a large number of pin holes provided in a board such as through holes of a printed circuit board. The pin jig is composed of a board guide provided above the board guide, and a board adsorption tool provided above the board guide to move the board up and down, and the pin jig inserts the pins into positions corresponding to the pin holes of the board. The apparatus for inserting a large number of bottles is characterized in that the apparatus has a large number of preparation holes for the air pressure, and a compressed air introduction pipe is connected to the air pressure entry chamber.

In the present invention, the air pressure entry chamber in the pin jig is a chamber in which compressed air is introduced into the preparation hole.

As a result, the pin previously inserted into the preparation hole is floated and swung by air pressure. The pin jig.

It has a preparation hole for pre-arranging a pin at a position corresponding to the pin hole of the substrate. This preparation hole.

Normally, they have exactly the same number and location as the pin holes on the board.

A portion may be provided at a position different from the pin hole of the board. In other words, 1. For example, if one pin jig can be used for a board with three types of pin holes, the pin holes and preparation holes of the two may not be exactly the same. Therefore, the number of preparation holes in the pin jig should be small (as long as they are in positions corresponding to the pin holes on the board). However, if there are many extra preparation holes, air leakage will increase during insertion, and it will be necessary to seal. 2. It is preferable that both of them are the same.

Further, it is preferable that the substrate suction tool is a box that can be depressurized, as shown in the embodiment. By reducing the pressure in this box, the air sent out from the pin jig to float the pin is sucked into the board suction M, so that the pin can be smoothly inserted into the pin hole of the board. be able to. It is preferable that this substrate suction tool is provided with a close contact portion. As the contact portion, a seal portion made of rubber or the like, a suction cup, or an adhesive plate may be used.

Further, it is preferable that a pusher is provided in the substrate suction tool to press the substrate in the direction of the pin in order to ensure that the pin is inserted after the head of the pin is fitted into the pin hole of the substrate. This ensures that the pin is inserted and fixed. Further, the substrate suction tool itself can also be used as a pusher (see second embodiment). Further, it is preferable that a vibrator for vibrating the substrate in the horizontal direction is disposed on the substrate suction tool or the substrate guide, etc. The pie break causes the substrate to swing during pin insertion, thereby allowing the pin to be inserted more smoothly.

[Action and effect]

The pin insertion device of the present invention includes a pin jig for pre-arranging a pin at a position corresponding to a pin hole of a board, and an air pressure entry chamber for sending compressed air to a 1Jll hole of the pin jig. It also has a substrate suction tool that moves the substrate up and down with respect to the pin jig.

Therefore, when inserting a large number of pins into a board using this device, first insert the pins into the preparation holes of the pin jig. It is loosely fitted into the hole. Next, the substrate is placed on a pin jig using a substrate suction tool. At this time, the board is positioned slightly above the upper end of the pin, and the pin hole of the board and the upper end of the pin inserted into the preparation hole are opposed to each other. Next, compressed air is introduced into the air pressure entry chamber and ejected from the preparation hole. This ejected air lifts the pin slightly and causes it to swing so that its head fits into the pin hole in the board. Thereafter, the board into which the pins have been inserted is lifted up using, for example, a board suction tool and sent to the next process.

As described above, according to the apparatus of the present invention, a large number of pins can be easily inserted into a substrate using the pin jig, compressed air, substrate suction tool, etc. Furthermore, the device is simpler than conventional image processing means.

The cost is also low.

Further, when the pusher is disposed within the substrate suction tool, the head of the pin is fitted into the pin hole of the substrate as described above, and then the pusher presses the substrate in the direction of the pin.

According to this device, in addition to the above effects, the fitting can be made more reliable.

Furthermore, in the former device described above, if a pie break that vibrates the substrate in the horizontal direction is installed on the substrate suction tool, etc., it is possible to vibrate the substrate slightly in the horizontal direction in response to the vibration of the bottle mainly in the vertical direction. I can do it.

Therefore, according to this device, in addition to the above-mentioned effects, the head of the bottle can more easily fit into the bottle hole of the substrate. Also.

This device is particularly effective when inserting a bottle into a substrate that does not have a pin hole through it (see second embodiment).

[Example] First Example This example is explained below. The multiple pin insertion device will be explained using FIGS. 1 to 6.

As shown in FIG. 1, this apparatus consists of a bottle jig 21 having an air pressure entry chamber 24 and a preparation hole 22, a substrate guide 25 provided above it, and a substrate suction tool 3 provided above it. Further, the substrate suction tool 3 has a pusher +4 inside thereof.

The pin jig 21 has a large number of preparation holes 22 at positions opposite to the pin holes 11 of the substrate 1, and the 01α holes 2
It has an air pressure entry chamber 24 below 2.

The air pressure entry chamber 24 consists of a box body 23, and has a nozzle 231.
, is connected via pipe 232 to an air compressor. The board guide 25 is a guide rod 25 that is slightly larger than the outer shape of the board 1.
1.

Next, the substrate suction tool 3 consists of a box 31 provided with a rubber elastic seal 30 as a contact part on the lower edge thereof, and a vacuum nozzle 32. The eight pressure reducing nozzle 32 is connected to a pressure reducing device through a pipe 33. Further, the substrate suction tool 3 has a pusher 4 therein for pressing the substrate 1 in the direction of the bin 5. The g-bunsha 4 includes a press plate 41 and a piston rod 42 that connects the press plate 41 to a hydraulic cylinder 43.

Therefore, the substrate suction tool 3 and the pusher 4 are connected to another lifting device 4.
4, it is arranged to be movable up and down.

In addition, the code|symbol 45 is a hydraulic circuit.

Further, the board 1 into which the bottle 5 is inserted is an electronic circuit board and has a large number of pin holes 11 around two cavities 12, as shown in FIG. Further, as shown in FIG. 6, the bottle 5 has a cross-shaped cross section and consists of two heads 53, a collar 52, and a leg 5I.

Since this device has the above configuration, it has the following effects. This will be explained mainly using FIGS. 1 to 4.

When inserting the bottle, first insert the preparation hole 22 of the pin jig 21.
Insert the legs 51 of the bottles 5 into each. At this time, the bottle 5 is in a loosely fitted state (Fig. 1.2). Next, the substrate 1 is placed on the bin jig 21 using the substrate suction tool 3. Namely, first.

The elastic seal 30 at the lower end of the substrate suction tool 3 is placed in close contact with the substrate 1 which is placed in a standby location separate from the insertion device, and the vacuum nozzle 32. The inside of the box 31 is brought into a reduced pressure state through the pipe 33, and the substrate 1 is attracted.

Then, the substrate is positioned above the pin jig 21 and within the guide rod 251 of the substrate guide 25 by the lifting device 44 (FIG. 2). At this time, the bottle 5 on the pin jig 21
is located at a position roughly corresponding to the pin hole 11 of the board 1.

Next, pipe 232. Through nozzle 231.

Compressed air is introduced into the air pressure entry chamber 24 of the pin jig 21. The introduced air 28 enters the r# big hole 22 and the bottle 5.
It erupts from below. Therefore, the brim portion 52 of the bottle 5 is pushed up by the air.

It is lifted in the direction of the pin hole 11 of the board 1. At this time, the substrate l is lifted slightly upward by the substrate suction tool 3.

In the pin hole 11 of the substrate l, since the inside of the substrate suction tool 3 is in a reduced pressure state, air 28 flows into the pin hole 11. That is, the air 28 in the air pressure entry chamber 24 is transferred to the preparation hole 22. A strong air flow is formed that passes around the bottle 5 and is sucked into the pin hole 11 of the substrate 1 (FIG. 3).

Therefore, the head 53 of the bottle 5 is fitted into the bottle hole 11 of the substrate 1 according to this air flow.

After the heads 53 of all the bottles 5 have been inserted into the pin holes 11, as shown in FIG. . Then, the pressing plate 41 of the pusher 4 presses the substrate 1 in the direction of the bottle to ensure the fitting between the bottle 5 and the pin hole 11. According to the three examples described above, it is relatively simple compared to the conventional method. A large number of pins can be easily and reliably inserted into a board using a simple device.

Second example The pin insertion device of this example is as shown in FIG.

The pin 5 is inserted into the board 1 which has the dam 13 on the top surface and the pin hole 11 does not pass through, and the pie break 67
This figure shows an apparatus for inserting pins using a substrate suction tool 6 having a substrate suction tool 6.

However, in one apparatus, the substrate suction tool 6 is.

Hydraulic cylinder 64. It consists of a box 61 that is raised and lowered by a piston rod 63, and a pie break 67 that vibrates the box 61 in the lateral direction. The above hydraulic cylinder is a hydraulic circuit 64
Connect to 1,642. The box body 61 has an elastic seal 62 at its lower end periphery and is connected to a pressure reducing device through a vibro 5. The pie break 67 is fixed to the upper bracket 66 together with the hydraulic cylinder 64, and its diaphragm 671 is fixed to the box body 61.

The rest is the same as the device of the first embodiment.

When inserting a pin using this example device.

The elastic seal 62 of the substrate suction tool 6 is brought into close contact with the dam 13 of the substrate 1, the 9-box 61 is brought into a reduced pressure state, and the substrate 1 is placed on the pins 5 on the pin jig 21. Then, similarly to the first embodiment, compressed air is introduced into the preparation hole 22 of the pin jig 21 to lift the pin 5 and swing it once. At the same time, the box 61 holding the substrate 1 by suction is laterally vibrated by the pie break 67.

Therefore, the head 53 of the pin 5 easily fits into the pin hole 11 of the substrate 1. Thereafter, the vibration is stopped, and the substrate suction tool 6 is lowered to press the substrate 1 in the direction of the pin 5, thereby ensuring that the pin 5 is inserted into the via hole 11.

In this example, one side of the substrate l is covered by the dam 13, and the pin hole 11 does not pass through it, but as described above, a pie break is also used.

Multiple pins can be easily inserted. Other effects similar to those of the first embodiment can be obtained.

[Brief explanation of the drawing]

1 to 6 show a multi-pin insertion device of the first embodiment, FIG. 1 is a sectional front view of the main part thereof, and FIGS.
The figures are cross-sectional explanatory views of main parts explaining the states before, during, and after insertion of the pin, Figure 5 is a plan view of the board, Figure 6 is a front view of the pin, and Figure 7 is a diagram of the second embodiment. FIG. 2 is a sectional front view of the main part of the pin insertion device. 191. Substrate, 11. , , pin hole. 21. Pin jig 22. ,,Preparation hole. 24. Pneumatic entry chamber 25. ,, Board guide. 3.6. ,,substrate suction tool, 30. ,, sticker. 401. Pusha. 560. pin. 67, Piebreak.

Claims (3)

[Claims] (1) An insertion device for inserting pins into numerous pin holes provided in a board, such as through-holes in a printed circuit board,
The insertion device includes a pin jig having an air pressure chamber, a substrate guide provided on the pin jig, and a substrate suction device provided above the substrate guide to move the substrate up and down. The tool has a large number of preparation holes for inserting the pins at positions corresponding to the pin holes of the substrate, and a compressed air introduction pipe is connected to the air pressure entry chamber. insertion device. (2) In the insertion device according to the first claim, the substrate suction tool is a box body that has a close contact portion that comes into close contact with the substrate, and that introduces and discharges pressurized air coming out of the pin hole of the substrate, and A multi-pin insertion device characterized in that a pusher for pressing a substrate in the direction of the pins is disposed within the suction tool. (3) The multi-pin insertion device according to claim 1, further comprising a vibrator that vibrates the board laterally.