JPH01125898A - Automatic mounting device for electronic component - Google Patents

Abstract

PURPOSE:To enable an electronic component to be easily mounted by a method wherein a meandering guide is provided along a direction in which a takeout section is made to slide and a base plate is made to be linked to the guide. CONSTITUTION:When a takeout section 44 just under a distribution section 43 is pulled out this side, the takeout section 14 is made to slide linearly. A base plate 28 laid under a template 35 in layer is made to meander being guided by a meandering guide 33 provided along a direction in which the takeout section 44 slides. Therefore, a base of a recessed part 36 is made to move in all directions and an electronic component dropped vertically there is made to roll laterally. And, when the takeout section 44 just under the distribution means 43 is made to be pulled toward this side, the takeout section 44 is made to open, a circuit substrate whose electronic component 14 mounting place is previously applied with bonding agent is laid on the template 35, and the electronic component 14 contained in a recessed part 36 is transferred to the circuit substrate. By these processes, the electronic component 14 can be easily mounted on a required place on the circuit substrate.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for arranging extremely small electronic components at predetermined positions on a circuit board.

[Problems to be solved by the invention] Electronic components without lead wires (so-called chip-type electronic components) such as resistors, capacitors, jumpers, diodes, etc. are guided onto a circuit board on which a circuit is printed according to a predetermined pattern. , will be installed. Traditionally, automated equipment for performing this task has been very complex and expensive. For this reason, it is impossible to introduce high-mix, low-volume production for financial reasons.

On the other hand, in the manual placement work of the electronic components, there is a very high risk that the electronic components may be placed too far apart due to operator error. Therefore, it is necessary to check whether the electronic components are correctly placed in the next step when selecting music.

An object of the present invention is to provide a device that can solve the above-mentioned manual problems by simple means. In other words, a specific electronic component is dropped into a recess provided in a designed position of a metal or resin mask, and then transferred to a circuit board by bonding the intermediate part with adhesive, etc. The purpose is to provide a device that can do this.

[Means for Solving the Problems] The structure of the present invention will be described with reference to the reference numerals in the drawings. The apparatus according to the present invention includes the following basic components. First, an electronic component supply section 2 supplies electronic components 14 from a plurality of containers 5 to a supply pipe 8, and electronic components 14 supplied in a line from the electronic component supply section 2 through the supply pipe 8 are supplied one by one. A distributing means 43 comprising a sending means 45 for sending to the next distributing means 43, a plurality of tubes 27 guiding the electronic components 14 sent out from the supplying means to a predetermined position, and disposed below the distributing means 43, and A drawer section 44 is provided with a template 35 having a plurality of recesses 36 arranged corresponding to the arrangement of the lower end of the tube 27.

The drawer section 44 is slidably attached from directly below to in front of the dispensing means 43, and the bottom plate 28 superimposed on the bottom surface of the template 35 is attached to the template 35.
5 so that it can be moved freely in all directions. Further, a meandering guide 33 is provided along the sliding direction of the drawer portion 44, and the bottom plate 28 is linked to the guide 33.

[Function] The function of the above device will be explained according to the flow of the electronic components 14. The electronic components 14, which are roughly stored in the containers 5, are sequentially sent from each container 5 to the supply pipe 8 in a row. The electronic components 14 in this - row state are simultaneously
sent one by one. As a result, one electronic component 14 is fed into each tube 27 of the distribution means 43,
Each of them is sent from the lower end of the tube 27 to the drawer section 44 .

The electronic components 14 sent to the drawer section 44 are received in the recesses 36 formed in the template 35, respectively. Since the electronic components 14 have vertically slid down the tube 27 up to this point, most of them are received in the recess 36 while standing.

Subsequently, when the drawer part 44 is pulled forward from directly below the dispensing means 43, the drawer part 44 is slid linearly. At this time, the bottom plate 2, which is stacked under the template 35, meanderes while being guided by the meandering guide 33 provided along the sliding direction. That is, while the drawer portion 44 is moving, the bottom plate 2 reciprocates back and forth and left and right with respect to the template 36. Therefore, the bottom surface of the recess 36 moves in all directions,
Electronic i1 product 14, which had fallen vertically, was overturned.

In this way, the drawer part 44 is pulled out from directly below the dispensing means 43 to the front, and the drawer part 44 is opened, and a circuit board (not shown) coated with adhesive in advance is placed on the template 35 at the position where the electronic component 14 is to be mounted. Then, the electronic component 14 received in the recess 36 is transferred to the circuit board. As a result, the electronic component 14 is mounted at a predetermined position on the circuit board.

The electronic components 14 can be transferred from the drawer portion 44 to the circuit board by, in addition to the above-mentioned stacking, it is also possible to use a method of vacuum suction and transfer. In the former case, the arrangement of the recess 36 is reversed with respect to the position where electronic components are mounted on the circuit board, and in the latter case, the arrangement of the recess 36 is
The arrangement of 6 is the same as the arrangement of electronic components on the circuit board.

[Example] Next, an example of the present invention will be described with reference to the drawings.

As already stated, the apparatus according to the present invention includes an electronic component supply section 2 that supplies electronic components 14 from a plurality of containers 5 to a supply pipe 8, and a single electronic component supply section 2 that supplies electronic components 14 from the electronic component supply section 2 through the supply pipe 8. Sending means 45 for sending one by one to the next distributing means 43, and a drawer section 44 provided with a recess 36 for receiving the electronic component 14 at a predetermined position where the electronic component is placed.
, a distribution means 43 having a plurality of tubes 27 connecting the delivery means 45 and the recess 36.

As shown in FIGS. 1 and 2, the basic component of the electronic component supply section 2 consists of one panel 3. A circular hole 4 is formed in this panel 3, into which the discharge lower side of a container 5 in which electronic components 14 are roughly housed is fitted.

The container 5 has a cylindrical shape, and its bottom 6 is tapered like a hopper so that it gradually becomes lower from the periphery toward the central discharge lower.

A supply pipe 8 is inserted into this discharge lower from below.

As shown in FIG. 3, an inclined through hole 9 is formed in the side wall of the bottom 6 of the container 5, and a stopper 10 is housed therein.
When the supply pipe 8 described later is not inserted into the discharge lower,
This is pushed out to the discharge lower by gravity or the spring 11, and the discharge lower is closed. This stopper 10 automatically retreats when the supply pipe 8 is inserted into the discharge lower.

This mechanism is convenient when replacing the entire container 5 without having to refill the contents of the container 5.

The panel 3 holding the container 5 is held between the pillars 12 on both sides and is moved up and down by an eccentric mechanism 13 as shown in FIG. 4 or by some other mechanism. This vertical movement causes
Electronic components 14 are delivered from container 5 to supply pipe 8 . The panel 3 is attached to the support column 12 via a special bearing 15 in order to reduce vertical movement friction.

A plate 16 holding the supply pipe 8 is attached to the pillars 12 on both sides. The inner diameter of the supply pipe 8 is slightly larger than the diameter of the electronic component 14, and the tip 17 thereof is obliquely tapered like the mouthpiece of a flute. A thin window is provided at the lower end of the supply pipe 8 to confirm the presence of the electronic component 14, and a small blade is inserted therein to stop the flow of the electronic component 14 from the supply pipe 8 to the loading plate 19. .

A loading plate 1 is placed under the panel 16 holding the supply pipe 8.
9, which is used to send the electronic components 14 from the hopper-shaped container 5 to the next distribution section and mount them on the wiring board.

This panel 16 has a through hole 2 having a height equal to that of the electronic component 14 to be mounted and a diameter slightly larger than that of the electronic component 14.
0 is set. The arrangement of this through hole 20 is
Corresponds exactly with the outlet of the supply pipe fixed at 6.

In the initial position where the loading plate 19 introduces the electronic component 14, the arrangement of the through holes 20 corresponds exactly to the position of the supply pipe 8. Here, one electronic component 14 is dropped into each through hole 20. The loading plate 19 is moved by electromagnetic force or similar means until the through holes 20 coincide with the through holes 24 of the distribution plate 23. here,
The electronic component 14 is sent to the next distribution section 43 (on the pedestal 22 side). Then, after a predetermined period of time has elapsed, the loading plate 19 automatically returns to the original position for receiving the electronic component 14, and this operation is repeated thereafter.

A large number of electronic components 14 can be mounted on the same wiring board by repeating the above operation several times without pulling out the drawer part 44 (described later) and leaving it in the same state directly below the distribution means 43. is also possible.

Beneath the loading plate 19 is arranged the pedestal 22 of the distribution section 43, which is provided with two plates 23, 25. Frame 2
The upper plate 23 forming the upper surface of the loading plate 2 has a through hole 24 arranged in the same manner as the through hole 20 of the loading plate 19 described above. The lower plate 25 forming the bottom surface of the pedestal 22 has through holes 26 arranged according to the arrangement of the electronic components 14 on the wiring board.
have. And these two plates 23.2
5 are connected via a tube 27 for guiding the electronic component 14 to a predetermined hole 39. This tube 27
is made of a special synthetic resin that has flexibility and antistatic properties in order to improve the slipperiness of the electronic component 14 therein, and its inner shape is square, and the distance between the opposing surfaces is the same as that of the electronic component 14. It is slightly wider than the diameter.

Below the plate 25 on the bottom side, there is a drawer part 44 (see FIG. 5) for placing the electronic component 14 on the template 35.
(See Figure 6). Its basic component consists of a floating plate 28 with a rough top surface, which moves freely within a frame 29.

Both sides of the frame 29 of this drawer gPJ44 are slidably attached to groove members 42, 42 provided on both sides of the drawer part 44. This eJ member 42.42 is linear and causes the drawer 44 to move only in a straight line when the operator pulls it. The free movement of the floating board for 2 days is
It is softened by springs 30 inserted between the sides of the floating plate 28 and the inside of the frame 29.

Two bins 32 are provided on the bottom of the floating plate 2 along the Y-axis direction (vertical direction in FIG. (See Figure 9).

The linear movement of the drawer 44 when the handle 34 of the drawer 44 is pulled is combined with the sinusoidal movement of the floating plate 28 and transmitted to the floating plate 2 as a rotational movement. As a result, no matter which direction the concave portion 36 of the template 35 is located, the electronic component 14 that has fallen into the concave portion 36 is laid down horizontally.

A template 35 having a predetermined recess 36 is placed on the floating plate 28. This template 35 is formed to be somewhat thinner than the diameter of the electronic component 14 so that the electronic component 14 placed horizontally thereon can be adhered thereto with an adhesive. The recess 36 has a rectangular shape slightly larger than the electronic component 14 so that the electronic component 14 can be held with a certain margin within the range allowed by the accuracy of the circuit formed on the wiring board.

A cap 37 (see FIG. 7) covering the template 35 has a handle and a through hole 39 of an appropriate thickness (see FIG. 8). Part 1
4 to easily slide into the recess 36 therebelow, and has a convenient shape to prevent the electronic component 14 once entered into the recess 36 from shifting due to various movements of the drawer 44. ing.

The drawer part 44 has a template 35, a cap 37 of the drawer part 44, and positioning pins 40 for accurately positioning a wiring board (not shown). Note that the wiring board is the electronic component 1 placed in the recess 36 of the template 35.
The entire process using this device, which is pressed onto 4, will be explained as follows.

First, electronic components 14 are supplied from the hopper 2. The electronic components 14 are arranged in one line while overlapping each other in the supply pipe 8, but at the same time when they are released by the loading plate 19, one electronic component is placed in one tube 27 on the plate 23 side of the distribution section 43. sent. Tube 27 from here
It passes through the cap 37 of the drawer 44 and falls onto the template 36. There, the electronic component 14 falls in an upright position. After that, when the operator pulls the drawer part 44 toward you,
As the bottom plate 28 reciprocates, the electronic component 14 that has fallen into the recess 36 is forced to fall horizontally. Bottom plate 2
Although the sun forms the bottom surface of the recess 36, the template 3
It is separate from 6 and can be removed from the bottom. Since the bottom plate 2 reciprocates 360° in any direction, the electronic component 14 falls in a direction with no barrier around it, and the electronic component 14 falls into the recess 3.
It falls exactly within 6.

The configuration of the device described above is an example of the simplest form, and the present invention is not limited to what is shown in the drawings. That is, various modifications, changes, substitutions, additions, etc. may be employed as constituent elements of the device according to the present invention, as long as they do not depart from the basic idea and scope of the present invention as defined in the claims section. It should be understood that it is possible.

[Effects of the Invention] As is clear from the above explanation, the device of the present invention is simplified and can be used with a small investment.
It can also be used for high-mix, low-volume production.

Furthermore, electronic components can be
4 can be reliably received in a fallen state in the recess 36 of the drawer part 43, and an accurate electronic component placement process can be carried out. Therefore, inspection before proceeding to the subsequent process becomes unnecessary, and a large labor-saving effect can be obtained in this respect.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention; Fig. 1 is a schematic diagram of the entire work station, Fig. 2 is a plan view of a plate holding a hopper-shaped container containing bulk electronic components, and Fig. 3 FIG. 4 is a vertical sectional side view of a hopper-like container equipped with a means for preventing escape of stored electronic components; FIG. Figure 5 is a longitudinal sectional front view of the drawer part;
Fig. 6 is a partially cutaway plan view of the drawer, Fig. 7 is a plan view showing the top surface of the drawer, and Fig. 8 is a vertical sectional side view of the main part showing the special shape of the recess of the drawer. , FIG. 9 is a plan view showing the groove guide means for driving the drawer and its bottom plate.

Claims (1)

[Claims] (1) In a device for arranging electronic components at predetermined positions to be mounted on a circuit board, supply pipes 8 from multiple containers 5
an electronic component supply section 2 that supplies electronic components 14 to the electronic component supply section 2; a sending means 45 that sends the electronic components 14 supplied in a line from the electronic component supply section 2 through the supply pipe 8 to the next distribution means 43 one by one; Part 1 sent out from the supply means
4 to a predetermined position, and a plurality of recesses 36 disposed below the dispensing means 43 and corresponding to the arrangement of the lower ends of the tubes 27. A drawer part 44 is provided with a template 35 attached thereto, and the drawer part 44 is slidably attached from directly below to in front of the dispensing means 43, and the bottom plate 28 stacked on the bottom surface of the template 35 is moved in all directions with respect to the template. An automatic placement device for electronic components, characterized in that the electronic component can be freely mounted and is provided with a meandering guide 33 along the direction in which the drawer section 44 slides, and the bottom plate 28 is linked to the guide 33.