JPH0128520B2 - - Google Patents

Description

[Detailed description of the invention] This invention is an F・B・T (flyback transformer)
The present invention relates to a positioning device that can reliably position articles such as electronic components at mounting positions on a mounting board by simple means.

For example, when inserting and mounting electronic components such as F/B/T onto a mounting board such as a printed circuit board using an automatic insertion machine, the lead wires are inserted into the mounting holes on the board to ensure that the fitting connection can be made without errors. It is necessary to position accurately. Therefore, in the past, for example, the transfer route of the component was set on the X-Y axis, the current position of the component on the X-Y axis was constantly detected during the transfer process of the electronic component, and the detected signal was compared with the set position. The positioning is performed so as to match the correct mounting position on the board by calculating and controlling the error as feedback.

However, with this positioning method, complicated and minute position corrections must be made during the transfer process, and the control circuit required for this is also complex, making the device large and complex and increasing costs. There is a problem with this.

Moreover, in this case, when electronic components are held with grippers, etc., a relative mechanical positional shift always occurs between the holding position and the lead wire, and for this reason, the part holding position is simply If the lead wires are simply positioned according to the mounting positions on the board, there will always be a misalignment corresponding to this positional misalignment between the lead wires and each mounting hole on the board, and there is a risk that a good insertion operation cannot be performed.

The present invention was made in view of the above-mentioned drawbacks of the conventional art, and it is extremely easy and convenient to position articles such as electronic components on a mounting board by using a simple stage. The object of the present invention is to provide a positioning device that is easy to perform and has a simple structure.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows the main part of the parts conveying means according to the present invention. A disc-shaped magnet 2 is attached to one end of a shaft-shaped support member 1 vertically movable at a predetermined position of the conveying means. Fixed. The magnet 2 is energized and magnetized by a drive source (not shown) and demagnetized. A disc-shaped magnetic body 3 is arranged below it. The magnetic body 3 is attracted and held by the magnet 2 in the excited state,
By demagnetizing it, it is separated from this. The magnet 2 and the magnetic body 3 are housed integrally in a casing 4. When the magnetic body 3 is separated from the magnet 2, it is supported by the bottom peripheral edge 4a of the casing 4 as shown by the imaginary line in FIG.
This prevents it from falling downward, and
A gap l is provided between the side walls 4b of the casing and at a predetermined interval to allow free movement within the casing 4 within a required range in the horizontal direction.

Below the magnetic body 3, there is a gripper 6 on one side of the lower end.
An arm 5 having support pieces 5a, 5a for supporting is vertically provided. A gripper 6 is attached to the tip of the arm 5 so that it can be opened and closed. The gripper 6 consists of a pair of chuck claws 6a, 6a, and its opening and closing operations are performed by, for example, a mini-cylinder built therein. This mini-cylinder is also equipped with a magnetic switch, etc., from which it receives operation signals. The electronic component A is gripped between the chuck claws 6a, 6a and transported from the component removal position to the mounting position on the printed circuit board.

On the other hand, the printed circuit board 10 is taken out from a magazine or the like in which it is stored by an automatic feeding mechanism (not shown), and is supplied and positioned at the working position shown in FIG. 3. The above-mentioned electronic component A is placed at an appropriate position on the printed circuit board 10 as shown by the imaginary line in the figure.
A mounting position 11 is provided, and mounting holes 12, 12, . . ., into which lead wires a, a, .

On the other hand, near the installation position of the board 10 on the base plate 13, a positioning stage for the electronic component A is provided in a portion 14 surrounded by a dashed line in FIG. This positioning stage 14 is a relay point provided in the middle of the component transport path between the component take-out position and the installation position of the printed circuit board 10, and the electronic component A is accurately positioned on this stage 14. There is. Positioning stage 14
A guide block 15 is disposed at a predetermined position. This guide block 15 is for positioning and correcting the lead wires a, a, etc. of this electronic component in order to correctly match the lead wires a, a,... with the above-mentioned mounting holes 12, 12, and so on. As shown in the figure, a predetermined number of fitting holes 16, 16, . . . corresponding to the lead wires a, a are provided. Engagement hole 1
6, 16... are the entrance side 16a as shown in FIG.
is shaped like an inverted V-shape, expanding upwards.
The lead wires a, a, . . . can be easily inserted. In this example, as shown in FIG. 1, an air inlet 20 is provided in the side wall 4b of the casing 4 to face the attracting surface between the magnet 2 and the magnetic body 3, so that the magnetic body 3 is separated from the magnet 2. When detached, compressed air is supplied between the two via a piping system 21 to ensure that this detachment can be performed without being affected by the residual magnetism of the magnet 2.

Next, the positioning operation of electronic components using the present positioning device having the above configuration will be explained.

The electronic components A are aligned and fed to the component take-out position via a component supply chute, etc., and are roughly positioned relative to the mounting position 11 on the board 10 at this position. Various types of positioning means can be used, but since any of them can be constructed using known means, detailed explanations and illustrations thereof will be omitted.

Thereafter, the conveyance means is driven, and the electronic component A supplied to the component take-out position is gripped between both chuck claws 6a, 6a of the gripper 6, as shown in FIG. It is transported along a predetermined transport route toward the destination. At this time,
The printed circuit board 10 is positioned and installed at the position shown in FIG. 3, and is placed in a standby state. The transport means is driven by an air cylinder or the like (not shown), and controls positioning, driving, and stopping at each predetermined position, or grips and releases the electronic component A by the gripper 6, and controls the board of the electronic component. The insertion operation onto 10 and the like are carried out in an orderly manner at a predetermined timing according to a program set in advance by a control means (not shown).

After that, the electronic component A is transferred onto the positioning stage 14 and placed in a position directly facing the guide block 15, and the transfer of the component is stopped at this position.
Next, the support member 1 moves downward within a required range, and the tips of the lead wires a, a, . . . reach the entrances of the fitting holes 16, 16 of the guide block 15 (see FIG. 5). In this state, the magnet 2 is energized and excited, so that the magnetic body 3 is attracted and held thereto. Next, when the magnet 2 is demagnetized just before the lead wires a, a... are inserted into the fitting holes 16, 16, the first
As shown by the imaginary line in FIG. It becomes possible to move horizontally within the required range. In this state, when the support member 1 is further moved downward, the lead wires a, a... are guided by the inner walls of the fitting holes 16, 16, and inserted into the holes 16, 16 while moving left and right (the first (See Figure 6). These fitting holes 16, 16 are connected to the printed circuit board 1.
The positions of the holes are pre-positioned so as to accurately match the mounting holes 12, 12 of 0.
Therefore, when the lead wires a, a are completely inserted into the fitting holes 16, 16, the lead wires a, a follow the fitting holes 16, 16 and are accurately aligned with the mounting holes 12, 12. After positioning, magnet 2
When energized and excited again, the magnetic body 3 is attracted and fixed thereon, and when the supporting member 1 is then moved upward,
The lead wires a, a are held in the positioned state and pulled out from the fitting holes 16, 16. In this way, the electronic component A is positioned in the normal mounting state corresponding to the mounting position 11 of the printed circuit board 10. After that, the conveying means is driven, and the electronic component A is transferred to the printed circuit board 1.
When the lead wires a and a are moved to the mounting position 11 of 0 and directly facing this position 11, the lead wires a and a are connected to each mounting hole 1.
It is located exactly on the hole position of 2,12. When the support member 1 is moved down in this position, the lead wires a, a
are inserted into the respective mounting holes 12, 12 without error, and after this insertion, the chuck claws 6a,
When opening 6a, the electronic component A is released and can be correctly mounted at the proper mounting position 11 on the printed circuit board (see FIG. 7). It goes without saying that at this time, the ends of the lead wires a and a are cut and clinched on the back side of the board, and the connection of electronic component A is fixed and the electrical connection with the connection pattern is made by appropriate solder dipping. Nor.

After the electronic component A is thus attached, the support member 1 returns to its upward movement, and the conveying means returns to its original position in preparation for transporting the next electronic component.

In the above embodiment, the magnet 2 is provided on the support member 1 side and the magnetic body 3 is provided on the arm 5 side, but on the contrary, the magnetic body is provided on the support member 1 side and the magnet 3 is provided on the arm 5 side. may be provided. Furthermore, both the support member 1 and the arm 5 may be provided with magnets.

The present invention is applicable not only to electronic components such as the above-mentioned F/B/T, but also to articles having shaft-shaped attachment parts such as the above-mentioned lead wires a and a, which require positioning as described above. It goes without saying that some things can be widely applied in general.

The present invention is also applicable to the positioning of articles that do not have lead wires as described above and that are attached with a certain directionality with respect to the attachment position, such as triangular or rectangular articles. It is widely applicable and extremely suitable. In this case, it goes without saying that the mounting board is provided with a mounting portion for the article, and the positioning stage is provided with a fitting portion for the article that is positioned to correspond to and coincide with the mounting portion.

As explained in detail above, since the positioning device according to the present invention is constructed as described above, when positioning an article such as an electronic component as described above with respect to a mounting board, the mounting portion of the device is It is only necessary to guide the fitting into the fitting part provided on the positioning stage. Therefore, this positioning work can be performed with a simple means, very easily and accurately, and the structure is simple and cost-effective. It has the effect of being inexpensive.

Therefore, according to the present invention, it is possible to automatically insert articles such as electronic components into a mounting board, etc. without any errors, and the insertion operation can be performed extremely well, thereby increasing the efficiency of the article mounting work. There are possible effects.

[Brief explanation of drawings]

FIGS. 1 and 2 are partially cutaway perspective views showing essential parts of the article conveying means in the present invention, and FIG. 3 is a partially cutaway perspective view showing an example of the electronic component positioning stage and the installed state of the printed circuit board in the present invention. Figure 4 is a sectional view taken along the line V-V in Figure 3, Figures 5-
FIG. 7 is a diagram illustrating the positioning operation of electronic components using the positioning device according to the present invention. 1...Supporting member, 2...Magnet, 3......
Magnetic material, 4...Casing, 4a...Periphery, 4
b...Side wall, 5...Arm, 6...Gritzper,
6a, 6a...Chuck claw, 10...Printed circuit board, 11...Mounting position, 12, 12...Mounting hole,
13... Base plate, 14... Positioning stage, 15... Guide block, 16... Fitting hole (fitting part), 20... Air inlet, 21... Piping system, A... Electronic component (article) , a, a...Lead wire (installation part).

Claims (1)

[Claims] 1. While transferring an article having a plurality of mounting shafts such as lead wires from its take-out position to a mounting position on a mounting board, positioning the mounting shafts with respect to the mounting holes of the mounting board. In the apparatus, a pair of gripper means for gripping and releasing the article, and a pair of contactable and separable gripper means, at least one of which is a magnet and the other of which is made of a magnetic material, are interposed between the gripper means and a support member that supports the gripper means. a positioning stage formed on a transfer path for the article; and a mounting shaft of the article transferred onto the positioning stage to be inserted and fitted to attach the mounting board. a guide block having a plurality of fitting holes aligned with the holes, when the article is positioned on the positioning stage, the connection between the magnet and the magnetic body of the pair of connecting means is released, and the article is A positioning device characterized in that a mounting shaft is fitted and guided in a fitting hole of the guide block.