JPH0636479B2 - Wiring board loading / unloading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring board carry-in / out apparatus installed in an apparatus for automatically and continuously inserting conductive pins into a printed wiring board.

[Conventional technology]

A large number of holes are formed in a printed wiring board (hereinafter simply referred to as a wiring board), and conductive pins are inserted and mounted in a plurality of holes of the plurality of holes.

Conventionally, in order to automatically and continuously insert conductive pins into predetermined holes of a large number of wiring boards, wiring board carry-in devices 2 are provided on both sides of a pin insertion device 1 as shown in FIG. The unloading device 3 for the wiring board in which the pins are inserted is required.

The carry-in device 2 includes a rack conveyor 4 for installing several racks (not shown) in which a large number of wiring boards are stacked at equal intervals,
The elevator 5 includes a rack that can be moved up and down, and a loader 6 that supplies the wiring board transferred from the elevator 5 to the pin insertion device 1.

Further, the carry-out device 3 includes a loader 8 that transfers the wiring board whose pins have been inserted to a rack in the elevator 7, and a rack conveyor 9 that installs a rack in which all the wiring boards are stacked and accommodated in the elevator 7. ing.

From the rack in the elevator 5, wiring boards are supplied one by one according to the insertion work time of the pins, and are set in the insertion device 1 via the loader 6. When the insertion of the predetermined number of pins in the insertion device 1 is completed, the wiring boards are sequentially transferred to the rack in the elevator 7 through the loader 8 and stacked and accommodated.

By continuously performing the above operation, pins are inserted and attached to a large number of wiring boards.

[Problems to be solved by the invention]

In the above-mentioned prior art, the loading / unloading device of the wiring board used for the pin inserting device has a total length of about 6 meters because it is installed linearly on both sides of the insertion device. It has the drawback of occupying a large area.

Further, it is uneconomical because a pair of devices having the same structure such as a rack conveyor, an elevator, and a rotor are required, and it is difficult to manage and maintain the entire device.

Further, there is a technical inconvenience that the lower surface position of the loader must be raised above the table due to the movement of the table on which the wiring board is fixed during the pin insertion work in the insertion device.

[Means for solving problems]

The present invention, in view of the problems of carrying-in and carrying-out of the conventional wiring board described above, the wiring board before pin insertion and the wiring board after pin insertion are circulated and transferred on the side surface of the pin insertion device,
It is an object of the present invention to provide a wiring board carry-in / out apparatus in which a wiring board into which a pin has been inserted can be stored in the original position of a rack.

The present invention for achieving the above object will be described below.

A pair of guide members 12 having a symmetrical structure are attached to a base 11 installed on an XY table of a known pin automatic insertion device (not shown).

The pair of guide members 12 can change the relative positional relationship and can reciprocate in the direction of the loading / unloading port of the wiring board.

A movable rail 15 and a fixed rail 16 are vertically provided on the inner symmetrical surface of each guide member 12.

The movable rail 15 is a series of mounting members 18 each having a mounting surface 17 for a wiring board on the upper end surface thereof and arranged at equal intervals, and is movable up and down.

Further, the fixed rail 16 made of an elastic metal plate fixes at least the lower part, and the upper part having the mounting surface 20 of the wiring board has a tendency to project outward in a normal state, and the upper part should be retracted as necessary. You can do it.

As for the positional relationship between the movable rail 15 and the fixed rail 16, the fixed rail 16 is installed above the space 19 formed between the mounting members 18 so as to correspond thereto. Then, when the movable rail 15 rises and stops at the highest position, the fixed rail 1
6 is placed between the mounting members 18, and both mounting surfaces 17 and 20 are on the same plane on a straight line.

[Action]

In order to carry the wiring board H between the guide members 12 from the rack 48 in which the wiring boards H are stacked at equal intervals, both guide members 12 are moved to the side of the elevator 47 that houses the rack 48 so that the rack 48 can move up and down. One wiring board H is pushed out from the rack 48 by the cylinder 50 and supplied between the mounting surfaces 17 of the movable rails 15 provided on both guide members 12, and the wiring board H stops at a predetermined position. The cylinder 50 returns to its original position, the guide members 12 also return to predetermined positions, the movable rail 15 rises, and the wiring board H is placed on the mounting surfaces 17 and 20 of the rails 15 and 16. In this state, the work of inserting pins into the wiring board H is performed.

After the insertion of the predetermined number of pins is completed, the movable rail 15 is lowered to the fixed position, and the guide members 12 move to the side surface of the elevator 47. Here, a new wiring board H is supplied from the rack 48 onto both movable rails 15, and a cylinder 52 other than the one described above is left on the fixed rail 16 and the wiring board H into which the pin is inserted is inserted. The rack 48 is carried out to a predetermined position.

By repeating the above operation, the conductive pins are automatically and continuously inserted and mounted in the wiring board H in the rack 48.

〔Example〕

 An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 11 is a base, which is installed and fixed on an XY table of a known pin insertion device.

Reference numeral 12 is a guide member mounted on the base 11, and the guide members 12 having a symmetrical structure are used as a pair. The relative positional relationship between the guide members 12 is variable, and the guide members 12 can reciprocate to one side along the length direction.

Since the guide member 12 has a bilaterally symmetrical structure, the structure of one guide member 12 will be described with reference to FIGS. 2 to 4.

A horizontal upper plate 14 is provided on the upper surface of the horizontally long vertical support plate 13.
Are connected in series. A movable rail 1 is provided on one side of the support plate 13.
5 and fixed rail 16 are installed respectively.

The movable rail 15 is one in which mounting members 18 each having a mounting surface 17 for a wiring board on the upper end surface are integrally connected at equal intervals, and a space 19 is formed between the mounting members 18. The movable rail 15 may be formed by punching out a space 19 from a single elongated metal plate, for example, by pressing to leave the mounting member 18.

The fixed rail 16 is made of an elastic metal plate, and the mounting surface 20 of the wiring board formed on the upper portion has a habit of projecting outward from the support plate 13.

For example, as shown in FIG. 7, an elastic metal plate is bent into a V shape, and the plate agent 16a on one side is fixed to the support plate 13, and the mounting surface 2
The other plate member 16b having 0 is inclined and the mounting surface 20 portion is projected outward.

The inclined plate member 16b normally protrudes upward in the upper part as shown in the figure, but it can be retracted to the support plate 13 side (when the wiring board goes up as described later) if necessary.

The fixed rail 16 may not be formed in the V shape as described above, but the lower portion may be simply fixed to the support plate 13 and the upper portion may be formed to be inclined outward.

The movable rail 15 can be moved up and down by a drive device described later, and both mounting surfaces 17 and 20 of the movable rail 15 and the fixed rail 16 are in the same plane on a straight line at the most raised position. Therefore, the fixed rail 16 is fixed to the upper part of the support plate 13 at a position corresponding to each space 19 of the movable rail 15.

Next, the drive device for the movable rail 15 will be described.

On the opposite side of the support plate 13, both ends of a crank plate 21 arranged parallel to the support plate 13 and both ends of the movable rail 15 are connected via a crank 22.

That is, the connecting pins 23 protruding from both ends of the movable rail 15
Through the vertically long holes 24 formed in the support plate 13
It projects to the opposite side of 3. The one end of the crank 22, which has one end rotatably connected to the support plate 13 by a shaft 25 and the other end rotatably connected by a shaft 26 to the crank plate 21, has a distal end loosely fitted to the connection pin 23.

A connecting member 27 is fixed to the crank plate 21, the connecting member 27 and a rod tip portion 29 of a cylinder 28 are rotatably axially connected, and a base portion of the cylinder 28 is fixed to the upper plate 14. .

The drive device has the above-described structure. As shown in FIG. 5, when the crank plate 21 is moved in the direction of the arrow X by the cylinder 28, the crank 22 rotates about the shaft 25, and the connecting pin is rotated by this rotating operation. 23 rises along the vertically elongated hole 24, so that the movable rail 15 is also pulled up.

When the crank plate 21 is reciprocated horizontally in the horizontal direction by the cylinder 28 in this manner, the movable rail 15 moves up and down, and the rising plate of the movable rail 15 is the upper plate 14.
The upper limit position detection switch 30 installed so as to extend vertically from the position is detected and stopped. Then, by interlocking the cylinders 28 of the drive devices installed on the guide members 12 facing each other, the movable rails 15 facing each other move up and down in synchronization.

The guide member 12 having the above configuration is installed with the surfaces having the movable rail 15 and the fixed rail 16 facing each other. As shown in FIG. 1, the two guide members 12 are connected to the connecting plate 3 on one side.
1, and the other open side serves as a carry-in / out port 32 for the wiring board.

One of the guide members 12a is a connecting plate 31a.
The other guide member 12b is movably connected along a guide groove 33 formed in the connecting member 31. Furthermore, the side of the carry-in / out port 32 of the guide member 12b is
It is movably connected along a guide groove 34 formed in the base 11.

By making the guide member 12b movable along both guide grooves 33, 34, the relative positions of the guide members 12a, 12b can be changed.

The guide member 12 and the connecting plate 31 can reciprocate in the direction of the carry-in / out port 32, and FIG. 6 shows the reciprocating device.

The rod 36 of the linder 35 having one end fixed to the base 11.
And the connecting member 37 fixed to the upper plate 14 of the guide member 12, and the guide shaft 38 fixed horizontally to the base 11 is fitted into the connecting member 37.

The lower surface of the upper plate 14 of the guide member 12a is attached to the base 11 by the roller 39 attached to the base 11, and the guide member 12b is inserted into the long groove 40 formed along the length direction of the guide member 12b. Supported by rollers 41.

Therefore, by operating the cylinder 35, the connecting member 37 reciprocates along the guide shaft 38, and the guide member 12 also reciprocates in the Y arrow direction.

Since the roller 41 is inserted into the long groove 40 and rotated, the guide member 12b can always reciprocate in parallel with the guide member 12a without swaying left and right.

The leading end of the connecting plate 31 includes a guide shaft 4 provided with a roller 42 attached to the leading end of the connecting plate 31 in parallel with the guide shaft 38.
It is supported by passing over 3 while rotating.

In the figure, 44 is a left limit movement detection switch of the guide member 12,
Reference numeral 45 is a right limit movement detection switch.

Next, a usage state of the loading / unloading device for the wiring board H having the above-described configuration will be described.

As shown schematically in FIGS. 9 and 10, the entire device of the present invention is installed and fixed on the XY table of the pin automatic insertion device 46. In addition, the pin automatic insertion device uses the wiring board H
Any conventionally known device can be used as long as it can be automatically and continuously inserted into the plurality of holes.

Reference numeral 47 is an elevator that accommodates a rack 48 in which a plurality of wiring boards H are laminated at equal intervals so that the rack 48 can be moved up and down, and 49 is a rack conveyor, all of which are conventionally known.

When the wiring board H is carried in from the rack 48 as described above, both guide members 12 and the connecting plate 31 are moved by the moving device of the cylinder 35 until stopped by the left limit detection switch 44 and then carried out. The entrance 32 is the elevator 4
It will be located on the side of 7. In this state, the cylinder 50 pushes the wiring board H out of the rack 48, and the wiring board H is placed on the mounting surface 17 of the guide rails 12a and 12b on the movable rail 15 and transferred, and stopped at a predetermined position. This stop position may be restricted by the cylinder 50, or as shown in FIGS. 1 and 2, a stopper 51 is provided facing the moving rail 15 and the stopper 51 is provided.
The stop position of the wiring board H may be determined by.
If the stopper 51 is attached to the support plate 13 and is movable along the support plate 13, the wiring board H
The position can be changed according to the size of.

After the wiring board H is placed on the mounting surface 17 of the movable rail 15, the guide members 12a and 12b and the connecting plate 31 are returned to the fixed positions, and then the movable rail 15 is moved by the horizontal movement of the crank plate 21 by the operation of the cylinder 28. It rises and is stopped by the upper limit position detection switch 30.

The wiring board H is also lifted upward as the movable rail 15 rises, but as shown in FIGS. 7 and 8, the end surface Ha of the wiring board H ascends while contacting the side surface of the fixed rail 16, so that it is fixed. The inclined plate member 16b of the rail 16 is gradually pushed inward, that is, pushed toward the support plate 13 side (chain line in FIG. 7), and the inclined plate member 16b is passed by the passage of the wiring board H.
Is restored by elasticity, and the wiring board H is attached to both rails 15 and 16
Therefore, the wiring board H is left on the mounting surface 20 of the fixed rail 16 even if the movable rail 15 descends thereafter.

When the wiring board H is at the highest position, the pin insertion position is selected by the XY table, and the conductive pins are inserted and mounted in a plurality of predetermined holes out of the many holes formed in the wiring board H.

After the insertion work of the predetermined number of pins is completed, the guide member 12 is sent to the elevator 47 side as described above. And a cylinder 52 different from the extrusion cylinder 50.
The wiring board H having the pins already inserted therein is drawn through the mounting surface 20 of the fixed rail 16 and accommodated in the rack 48 at a fixed position. This storage position is the same as the cylinder 5
It is at the same position as when it was pushed out by 0, so that the rack 48 is raised in the elevator 47 by one sheet of the wiring board H (the vertical width of the movable rail 15).

At the same time as the pull-in cylinder 52 extends to the wiring board H on the fixed rail 16, the push-out cylinder 5
0 pushes out a new wiring board H from the rack 47 and transfers it to both mounting surfaces 17 of the movable rail 15 located below, and the pins are inserted by the same device as described above.

Usually, two reference holes are formed in the wiring board H, and a large number of holes are formed based on these reference holes. Therefore, in the conventional insertion device, the fixed pin is inserted into the reference hole to hold the wiring board H, but it is possible to provide a holding device for the wiring board H also in the present invention.

As shown in FIG. 1, one end of the rotary shaft 53 disposed in parallel above the guide shaft 38 is installed on the guide member 12 and the other end is installed on the connecting plate 31 via bearings 54 and 55, respectively. There is. The bases of the two rocking bodies 56 are fixed to the middle portion of the rotating shaft 53, and a holding pin 57 is provided so as to project from the tip of each rocking body 56.

A cam roller 58 is connected to one end of the rotary shaft 53,
The cam roller 58 is designed to rest on a concave and convex cam surface 59 formed at the end of the crank plate 21.

When the movable rail 15 is in the lower home position, the crank plate 21 is shifted to the left, and the cam roller 58 is lifted as shown by the chain line in FIG. 11 because it is placed on the higher surface of the cam surface 59. As a result, the rotating shaft 53 also rotates, and the swinging member 56 is positioned on the holding pin 57 side.

The wiring board H is transferred to the mounting surface 17 of the movable rail 15,
When the crank plate 21 moves to the right in order to raise the movable rail 15, the cam roller 58 is placed on the lower surface of the cam surface 59, and therefore the pulling elasticity of the spring 61 provided between the pin 60 fixed to the shaft 53 and the connecting plate 31. By (See Figure 1)
The shaft 53 rotates in the opposite direction to the above, and the holding pin 57 is inserted into the reference hole 62 of the wiring board H which has reached the uppermost position as shown by the solid line in FIG.

Since the holding pins 57 rotate and move upward as the movable rail 1 descends after the insertion of the pins into the wiring board H is completed, there is no obstacle to the work of pulling back the wiring board H by the cylinder 52.

The rocking body 56 may be rocked in conjunction with the vertical movement of the movable rail 15 by a mechanism other than the concave-convex cam surface 59 of the crank plate 21.

〔The invention's effect〕

As described above, at the upper position corresponding to the movable rail 15 in which the mounting members 18 having the mounting surface 17 of the wiring board H are continuously arranged at equal intervals and the space 19 between the mounting members 18, The upper mounting surface 20 side is provided with a fixed rail 16 capable of moving in and out by an elastic action on the opposite side surface,
A pair of guide members 12 having a symmetrical structure can be installed in the pin automatic insertion device, and both guide members 12 are provided on the carry-in / out side of the wiring board between the lifting tables of the rack in which the wiring boards are stacked at equal intervals. Since the pins can be reciprocally moved, the wiring board into which the pins are to be inserted is first transferred from the rack onto the mounting surface 17 of the movable rail 15, and the wiring board is lifted while being supported by the movable rail 15 and the fixed rail 16 is mounted. It will be fixed together with the placement surface 20.

At the highest position, the pins are automatically and continuously inserted into the wiring board, and the wiring board into which the pins have been inserted is accommodated in the rack through the upper fixed rail 16 of the two vertically separated rails. At the same time, a new wiring board is supplied from the rack via the movable rail 15.

That is, in the present invention, the new wiring board into which the pin is to be inserted is transferred from the rack installed in the elevator to the insertion device, and is moved to the rack after the pin is inserted. It suffices to circulate between them. Therefore, the elevators, rack conveyors, etc. for installing racks can be installed one by one on one side of the insertion device, and pins can be continuously inserted into each wiring board.

Particularly, the mounting member 18 of the movable rail 15 and the rail 1
6 and the mounting surfaces 17 and 20 are arranged alternately on the upper and lower sides of the movable rail 15 at the highest position of the movable rail 15 so that the wiring boards are mounted on both the movable rail 15 and the fixed rail 16. It can be supported by the mounting surfaces 17 and 20, and the wiring board is stably held during the pin insertion work.

Further, since the fixed rail 16 is formed of an elastic metal material, the upper end of the mounting surface 20 side has a habit of protruding outward in a normal state, and is retracted when the wiring board rises and passes. There is no obstacle to the upward movement of the substrate.

[Brief description of drawings]

FIG. 1 is a plan view showing the entire device of the present invention, FIG. 2 is a plan view of a guide member, FIG. 3 is a front view thereof, and FIG. 4 is a side view thereof.
FIG. 5 is a front view showing a vertical drive device for a movable rail, and FIG.
FIG. 7 is a front view showing a reciprocating drive device for a guide member, FIG. 7 is a side view showing the relationship between a movable rail and a fixed rail when guiding a wiring board upward, FIG. 8 is the same front view, and FIG. Plan view with the elevator and rack conveyor attached, No. 10
FIG. 11 is a front view of the same, FIG. 11 is a side view showing an operating state of an oscillating body that holds a wiring board, and FIG.
FIG. 3 is a schematic front view of a conventional insertion device provided with a loading / unloading device for a wiring board. 11 is a base, 12 is a guide member, 13 is a support plate, 15 is a movable rail, 16 is a fixed rail, 17 is a mounting surface, 18 is a mounting member, 19 is a space, 20 is a mounting surface, and 21 is a crank. A plate, 22 a crank, 23 a connecting pin, 31 a connecting plate,
32 is a carry-in / out entrance, 44 is a left limit movement detection switch, 45 is a right limit movement detection switch, 47 is an elevator, 48 is a rack, and 49 is a rack conveyor.

Claims (1)

[Claims] 1. A mounting member 18 having a mounting surface 17 for mounting a printed wiring board H on its upper end surface is arranged at equal intervals on one side surface of a horizontally long vertical support plate 13 in which a horizontal upper plate 14 is arranged continuously. In the upper position corresponding to the movable rail 15 and the space 19 between the mounting members 18, the mounting surface 20 of the wiring board H is provided at the upper portion, and the fixing is made of an elastic material inclined outward. The rail 16 is arranged, and on the other side surface of the support plate 13, a vertical drive device is provided which allows the movable rail 15 to move up and down and places the mounting surfaces 17, 20 of both rails 15, 16 in the same plane at the upper limit position. One side of the guide member 12 which is installed and has a symmetrical structure in which the rails 15 and 16 are opposed to each other is a connecting plate 31.
The loading / unloading of the wiring board is characterized in that the other end side is a loading / unloading port 32 for the wiring board H, and the two guide members 12 have a variable relative positional relationship and can reciprocate in the loading / unloading port 32 direction. apparatus.