JPS62166589A - Automatic inserter of radial leaded electronic parts - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic electronic component insertion device for inserting electronic components onto a printed circuit board. This invention relates to an automatic insertion device for radial lead electronic components to be inserted.

[Conventional technology]

2. Description of the Related Art Conventionally, various types of automatic insertion devices for radial lead electronic components have been known for inserting taped radial lead electronic components into printed circuit boards.

[Problem that the invention seeks to solve]

However, radial lead electronic components can be roughly divided into 3 types.
As shown in the figure, there are two types of lead wires, and three type 31g (a+) like diodes, etc., and the two lead wires also have a 3-wire interval. A lead wire that has a lead wire of
3(b), hereinafter referred to as a single pitch), and one having a pitch 2p, which is twice that pitch (FIG. 3(C), hereinafter referred to as a double pinch).

It appears that various attempts have been made to insert these radial lead electronic components using the same automatic insertion device, but none have yet been put to practical use.

The present invention aims to provide an automatic insertion device for radial lead electronic components, which allows these various types of radial lead electronic components to be inserted by the same automatic insertion device.

Means for Solving Problem C] In order to solve the above problems, the present invention provides a supply system in which a radial lead electronic component supply device can offset the component supply position of a radial lead electronic component by a half pitch of the lead wire interval. three lead wire holders are formed on the insertion chuck of the insertion head at intervals corresponding to the lead wire spacing, and the component supply position of the radial lead electronic component is set to the lead wire. When the gap is offset by half a pinch, the component insertion position on the printed circuit board and the center position of the insertion head are offset by the same amount.

[Effect]

That is, three lead wire holding parts are provided on the insertion chuck of the insertion head, and a radial lead electronic component (FIG. 3(a)) having three lead wires can be mounted with three lead wire holding parts. A radial lead electronic component (Fig. 3 et al.) having two lead wires with a single pitch is inserted into a printed circuit board while holding each lead wire, and the radial lead electronic component is supplied by a supply position adjustment means. By off-centing the position by half a pitch, two lead wires can be inserted using only the center lead wire holder and one lead wire holder of the three lead wire holders on the insertion chuck of the insertion head. Hold and insert into the printed circuit board, double pitch 2
The radial lead electronic component (FIG. 3(C)) having two lead wires can be mounted on a printed circuit board by returning the supply position adjusting means to its original position and holding the two lead wires by the lead wire holders at both ends. At the same time, when the electronic component supply position is offset by a half pitch, the component insertion position on the printed circuit board and the center position of the 7-do should be offset by the same amount. Therefore, all three types of radial lead electronic components can be inserted using the same automatic radial lead electronic component insertion device.

〔Example〕

Hereinafter, the present invention will be explained in detail based on drawings of embodiments.

FIG. 3 is a diagram showing the number of lead wires and the pitch of the lead wires of a radial lead electronic component. are pasted at equal intervals. tb+
A radial lead electronic component 1 having two single-pitch lead wires 2 is similarly attached to a tape 3 at equal intervals with a pitch p of the lead wires. In (C), a radial lead electronic component 1 having two leads vA2 with a double pitch is attached to a tape 3 at equal intervals with a double lead wire pitch 2p.

Each of the tapes 3 is provided with a feed hole 4 that fits with a sprocket wheel, and the feed hole 4 feeds the tape 3 at a fixed pitch (pinch when attaching the electronic component 1), and the electronic component 1 is sequentially attached. Supplied to the parts supply position.

FIG. 4 shows an example of an automatic radial lead electronic component insertion device for inserting these taped radial lead electronic components onto a printed wiring board. A component supply device 11 is fixed to a device main body 13, and a conveyance means 16 is provided above it for conveying the electronic component 1 whose lead wire has been cut by the lead wire cutting means 12 to the insertion chuck 15 of the insertion head 14. ing.

In this embodiment, a plurality of insertion/insertion guides X4 are provided on a turret 17 that indexes and rotates, and each inserts electronic components of different shapes such as radial lead electronic components, axial lead electronic components, DIP type RC, etc. It is possible to select and index the insertion head to be inserted.

Below the insertion head 14, a printed wiring board 18 into which electronic components are inserted is mounted on a known mounting table.
The electronic component is moved so that the insertion position A is located directly below the insertion head 14. A clinch head 19 is provided below the printed wiring board 18 on the center line of the insertion head 14 for bending and fixing the lead wires of the inserted electronic components.

FIG. 1 is a plan view of the radial lead electronic component supply device 11, and FIG. 2 is a cross-sectional view of the guide section 21 on the right side of FIG.
The taped radial lead electronic component 1 is supplied and wound around the sprocket wheel 22 shown in FIGS. 1 and 2 so that the feed hole 4 of the tape 3 fits into the sprocket wheel 22. The electronic components 1 are sequentially fed one by one by rotation. The sprocket wheel 22 indexes and rotates as a driving force from a drive source (not shown) is transmitted by a toothed belt 24 wound around a toothed pulley 23 .

The sprocket wheel 22 is connected to the lead wire 2 of the electronic component 1.
Along with the feed gear 25 having a tooth pattern 25a that meshes with the
The position with respect to the index plate 27 is determined by the positioning pin 26, and it is fixed by three bolts 28 and rotates as one unit.

The indexing plate 27 is positioned by an indexing lever 30 biased by a spring 29 to position the electronic component in a predetermined position.

The sprocket wheel 22 has positioning pins 26 and 3
Two sets of holes are provided for the installation in which the bolts 28 are inserted, and in the first installation, when the feed gear 25 and the index plate 27 are attached to the sprocket wheel 22 by the set of holes, as shown in FIG. As shown, the tooth profile 2 of the feed gear 25
5a and sprocket wheel 22 are aligned, 3
It is used when supplying electronic components with one lead wire or two lead wires with double pitch.

On the other hand, in the second installation, when the feed gear 25 and index plate 27 are attached to the sprocket wheel 22 by a set of holes, as shown in FIG. The electronic component's lead wires, which have two single-pitch lead wires, are inserted into the central tooth pattern and the lower tooth pattern in the figure, and are fed with the two single-pitch lead wires offset by a half-pinch. Used when supplying electronic components with lead wires.

The conveying means 16 that conveys the electronic component 1 from the radial lead electronic component supply device 11 to the insertion chuck 15 of the insertion head 14 is rotatable about a central axis 41, and has a lead wire of the electronic component 1 at its tip. A conveyance chuck 42 for gripping 2 is provided.

FIG. 5+al is a plan sectional view showing details of the transport chuck 42, in which the fixing claw 4 has a tooth-shaped holding part 43 for holding the lead wire 2 of the radial lead electronic component 1 in the center.
4, and a pair of movable claws 45 that open and close opposite to this.
46 are provided.

The movable claws 45 and 46 are moved by springs 47.
．． 46 are mutually biased in the opening direction, and are rotated in the closing direction by the actuation of spools 50, 51 fitted into a cylinder 49 formed within the chuck body 48.

As shown in detail in FIG.
The holding portion 43 at the tip is formed in a tooth shape, and the central lead wire of the electronic component 1 is attached to the central recess 43a, and the lead wires on both sides are attached to the inclined surfaces 43b and 43c on both sides, respectively, with movable claws 45. 46 and held. When the electronic component 1 has three lead wires, it is held as described above, and the central lead wire is only supported by the central recess 43a of the holding part 43 and is held by the movable claws 45 or 46. It's not. When there are two flowers pitch, hold part 4
One lead wire is located in the recess 43a at the center of the chuck claw 45.
46.

As shown in FIG. 5 (bl), the movable claw 45 fits into the slit 43d provided on the movable claw 45 side of the holding part 43 at the tip of the fixed claw 44 and presses the center lead wire. When using two double-pinch lead wires, they are held in the same way as when using three lead wires, and are held in the central recess 43.
a is not used.

The electronic component transported by the transport means 16 is transferred to the insertion chuck 15 of the insertion head 14.

The insertion head 14 has the same function as a known insertion head, and its structure is not special, so the explanation thereof will be omitted here, only illustrating it in FIG. 6.

An insertion chuck 15 is provided at the lower end of the insertion head 14 . The insertion chuck 15, like the chuck 42 of the conveying means 16, is capable of holding three lead wires.

7 to 9 show the structure of the tip of the insertion chuck 15. FIG.

As shown in the figure, the insertion chuck 15 of this embodiment is composed of central and left and right chuck jaws 61, 62, and 63 attached at an angle of approximately 45 degrees to each other. The chuck claws 61, 62, 63 are fitted into grooves 64a264b, 64c formed in the chuck holder 64, respectively, and are rotatable by a pivot 65.
The chuck is biased in the closing direction by a spring (not shown).

The lead wire holding portion at the tip of the central chuck claw 61 is formed into a bifurcated shape, and the outer side surface 6 of one holding portion 61a
1c to position the lead wire 2b, and the other holding part 61b
The lead wires 2a, 2C are positioned on the side surfaces 61d, 51e on both sides.

The holding parts 62a and 62b of the left chuck claw 62 are also formed in a bifurcated shape, and one holding part 62a is connected to the outside of the holding part 61a of the center chuck claw 61, and the other holding part 62
b is arranged between the holding parts 61a and 61b of the central chuck claw 61, and the right side faces 62c and 62d, respectively.
position the lead wires 2b, 2a in cooperation with the holding parts 61a, 61b of the central chuck claw 61.

Holding portion 63 of the chuck claw 63 on the right side. a is located on the right side of the holding portion 61b of the center chuck claw 61, and its left side surface 63b cooperates with the right side surface 61e of the holding portion 61b of the center chuck claw 61 to position the lead wire 2c.

In this embodiment, each lead wire holding portion has a tapered shape to facilitate insertion of the lead wire, and a protrusion 61f is provided on the bottom surface of the central chuck claw 61. This prevents the lead wire of the electronic component from descending from the chuck claw 15 before the mounting operation on the chuck claw 18.

10 to 12 are perspective views showing the shape of the lead wire holding portion, and FIG. 10 shows the left chuck claw 62 and the first
1 shows the lead wire holding portion of the center chuck claw 61, and FIG. 12 shows the lead wire holding portion of the right chuck claw 63.

Similar to the conveying means 16, this chuck claw 15 also holds the lead wire in each of the three lead wire holding parts in the case of an electronic component having three lead wires, and connects two wires with a single pitch. In the case of an electronic component with a single pitch, the lead wire is held in the lead wire holder on the center and right side, and in the case of an electronic component with two lead wires with double pitch, the lead wires on the right and left side are held. The lead wire is held by the wire holding portion, and the electronic component is mounted on the printed circuit board.

Hereinafter, the operation of the electronic component automatic mounting apparatus of this embodiment will be explained.

The taped radial lead electronic component is supplied to a component supply position by the radial lead electronic component supply device 11.

The taped radial lead electronic component 1 is supplied to the radial lead electronic component supplying device 11 through the guide section 21 on the right side of FIG. 4, and the sprocket wheel 22 shown in FIG. 1 and FIG. The electronic components 1 are wound so as to fit into the sprocket wheel 22, and the electronic components 1 are sequentially sent one by one to the component supply position by indexing rotation of the sprocket wheel 22.

Temporary index 2 rotating together with sprocket wheel 22
7 and the feed gear 24, as mentioned above, when supplying an electronic component with three lead wires or an electronic component with two lead wires in a double pinch, the first attachment is carried out by a set of holes on the feed gear. 25 and index plate 27 are attached to the sprocket wheel 22, as shown in FIG.
Tooth pattern 25a of feed gear 25 and sprocket wheel 22
The positions of the electronic parts coincide with each other, and the center of the electronic component is located above the center tooth pattern of the tooth pattern 25a of the feed gear 25.

On the other hand, when supplying an electronic component with two lead wires in a single pinch, the second attachment is such that the feed gear 25 and index plate 27 are attached to the sprocket wheel 22 by a set of holes, as shown in FIG. As shown in FIG. 2, the tooth profile 25a of the feed gear 25 and the sprocket wheel 22 are installed so that they are offset by a half pinch, and due to this offset, the feed gear 2 has its lead wires positioned at the same position.
The center of the electronic component can be inserted between the center tooth pattern and the lower tooth pattern of the tooth pattern 25a of the feed gear 25. located above.

The electronic component 1 thus supplied is transported from the radial lead electronic component supply device 11 to the insertion chuck 15 of the insertion head 14 by the transport means 16.

When the electronic component 1 has three lead wires or two lead wires with double pitch, the transport chuck 42 of the transport means 16 has the lead wires on both sides attached to the fixing claws 44 as shown in FIG. 5+a+. Movable claws 45.4 are provided on the inclined surfaces 43b and 43C on both sides of the
6 is pressed and held. On the other hand, single pitch 2
In the case of a book lead wire, as shown in Part 5), one lead wire is attached to the central recess 43a of the fixed claw 44, and the other lead wire is attached to one inclined surface 43c of the movable claw 45.
．． 46 and held.

As described above, the electronic component transported by the transport means 16 is transferred to the insertion chuck 15 of the insertion head 14.

The insertion chuck 15 has three lead wire holders, as shown in FIGS. 7 to 12. When there are three lead wires of the electronic component transported by the transport means 16 or two lead wires in double pinch, the three lead wire holding parts or both sides except the central lead wire holding part are The two lead wire holders hold the lead wire 3 of the electronic component 1 and attach it to the printed circuit board 18. When two lead wires are used with a single pitch, the two lead wire holders at the center and left The lead wires 3 of the electronic component 1 are held and mounted on the printed circuit board 18.

When the electronic component has three lead wires or two lead wires with double pitch, the center of the electronic component 1 held by the insertion chuck 15 coincides with the center of the insertion chuck 15, so it remains as it is. Although it can be mounted on the printed circuit board 18, in the case of an electronic component with two single-pitch lead wires, the electronic component 1 and the center of the insertion chuck 15 are offset by a half pitch of the lead wire interval. The lead wire 2 of the electronic component 1 and the lead wire insertion hole of the printed circuit board 18 are offset by a half pitch, and the electronic component 1 cannot be mounted on the printed circuit board 8 as is.

Therefore, at this time, the position of the lead wire insertion hole of the printed circuit board 18 must be corrected by half a pitch so that the lead wire 2 of the electronic component 1 and the position of the lead wire insertion hole of the printed circuit board 18 match. Must be. This correction was achieved by incorporating the correction into the code of the single-pitch, two-lead wire electronic component, and by programming it to automatically correct when the Hana Bifuchi two-lead wire electronic component was selected. You can.

In the above embodiment, the protrusion 51f was provided on the bottom surface of the lead wire holding portion of the insertion chuck 15.
Of course, the lead wire 2 of the electronic component 1 may be directly chucked without using the lead wire 2 of the electronic component 1. With this configuration, it is also possible to configure the mounting throat 14 to move back and forth and the insertion chuck 15 to directly receive the electronic component from the component supply position of the radial lead electronic component supply device 11. .

〔Effect of the invention〕

By configuring as described above, the present invention allows radial lead electronic components having three lead wires, two lead wires with a single pitch, and two lead wires with a double pitch to be mounted in the same automatic insertion device. The automatic insertion device does not need to be replaced when changing products.
This has many advantages, such as being able to be easily changed and eliminating the need to prepare a spare insertion device for replacing the automatic insertion device.

[Brief explanation of drawings]

FIG. 1 is a plan view of a radial lead electronic component supplying device which constitutes the main part of the present invention (al is a radial lead electronic component having three lead wires and a radial lead electronic component having two lead wires with double pitch). When supplying electronic parts, mountain)
2 shows the arrangement of the feed gear when supplying a radial lead electronic component having two lead wires with a single pitch, FIG. 2 is a side sectional view of the same, and FIG. 3 is a diagram showing an example of various radial lead electronic components. , FIG. 4 is a side sectional view of one embodiment of an electronic component automatic insertion device using the radial lead electronic component supply device of the present invention, FIG. 5 shows a conveyance means, (8) is a plan sectional view, ( b) is an enlarged view of the main parts, FIG. 6 is a sectional view of the mounting head, and FIGS. 7 to 12 show the insertion chuck,
Figure 7 is a plan sectional view, Figure 8 is a rear view, Figure 9 is a side view, Figure 10 is a perspective view of the left chuck jaw, Figure 11 is a perspective view of the center chuck jaw, and Figure 12 is the right chuck. It is a perspective view of a nail. 11... Radial lead electronic component supply device, 12...
・Lead wire cutting device, 14... mounting head,
15... Insertion chuck, 16... Conveyance means, 25
...Feed gear, 26...Positioning pin, 27...
・Index plate, 28... bolts. Procedural amendment (method) Patent Application No. 7841 of 1985 2 Name of the invention Automatic insertion device for radial lead electronic components 3 Relationship with the person making the amendment Case Patent applicant address 2-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Number 1 phone (03
) 342-1231 March 25, 1986 (Shipping date) 5. Drawings subject to amendment

Claims (1)

[Claims] A radial lead electronic component supply device that sequentially supplies taped radial lead electronic components one by one to an insertion head in an automatic radial lead electronic component insertion device that inserts taped radial lead electronic components onto a printed circuit board. a lead wire cutting means for cutting the lead wire of the radial lead electronic component supplied to a predetermined component supply position by the radial lead electronic component supplying device and supplying the lead wire to the insertion head; an insertion head for inserting into a printed circuit board, the radial lead electronic component supply device having a supply position adjusting means capable of offsetting the component supply position of the radial lead electronic component by a half pitch of the lead wire interval; Three lead wire holding parts are formed on the insertion chuck of the insertion head at intervals corresponding to the pitch of the lead wire intervals, and the component supply position of the radial lead electronic component is offset by a half pitch of the lead wire interval. An automatic insertion device for radial lead electronic components is characterized in that the component insertion position on a printed circuit board and the center position of an insertion head are offset by the same amount.