JPS63126300A - Chuck mechanism for inserting and attaching hollow core coil - 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 [Industrial Field of Application] The present invention relates to a chuck mechanism for inserting and mounting an air-core coil.

More specifically, the present invention relates to a chuck mechanism used when the air-core coil is mounted on the printed circuit board by inserting the lead of the air-core coil into a mounting hole of the printed circuit board.

[Conventional technology] Conventionally, in the mounting process of a printed circuit board for a tuner,
The air-core coil 1 is formed by winding a thin wire (for example, a wire of 0.3 mm) into an air-core coil portion 1a as shown in FIG. The air-core coil 1 was held by a person using an appropriate jig, and the pair of leads 1b were inserted into the holes of the printed circuit board.

[Problems to be Solved by the Invention] For this reason, it is difficult to quickly insert and mount the device, and problems such as insertion errors are likely to occur.

Therefore, in order to automate this process, the present inventors
We started developing a chuck 1a structure suitable for this, and as a result of intensive study from various aspects, the pitch P1 between the leads 1b was determined as follows:
We have discovered a chuck 1fl coffin that can grip an air-core coil so that it can automatically match the pitch between the mounting holes of the printed circuit board, and can accurately insert and mount it on the printed circuit board.

[Means for Solving the Problems] That is, the chuck mechanism for inserting and mounting an air-core coil according to the present invention inserts the lead of the air-core coil into a mounting hole of a printed circuit board, and attaches the air-core coil to the printed circuit board. In the chuck film used when mounting,
a chuck housing suspended from a chuck support so as to be movable up and down; a pair of pawl receivers suspended from the chuck housing so as to be horizontally opposed and movable toward and away from each other; The pawl holder has fixed pawls attached thereto so as to protrude downward from the lower end of the holder, and the pawl holder is biased by an elastic body so that its lower end protrudes downward from the bottom end of the fixed pawl. Each of the fixed claws has a groove at its lower end into which the end of the coil portion of the air-core coil can be inserted, and each of the movable claws has a groove attached to the lower end of the fixed claw. The present invention is characterized in that it has a protrusion having an upper end face opposite to the lower end face of the coil, and the protrusion is provided with a hole into which a lead of an air-core coil can be inserted.

[Example] Hereinafter, an example will be described based on the drawings. In FIG. 1 which is a front view and FIG. 2 which is a Y-Y arrow view of FIG. 2 is suspended from the chuck support 3, that is, the chuck housing 2 is attached to a connecting tool 5 fixed to the lower end of the vertical shaft 4.
is fixed. The vertical shaft 4 is attached to the chuck support 3 so as to be able to move up and down and rotate, and is urged by a compression coil spring 6 to prevent it from coming off.

Further, one end of the chuck support 3 is fixed to a leg frame (not shown).

Next, 7a and 7b indicate claw receivers, which are suspended from the chuck housing 2 so that they are horizontally opposed and can approach and separate from each other.

Specifically, the pawl receiver 7a is fixed to one end of a rod 9a of a solenoid 8a fixed to the chuck housing 2, and the guide shaft 10al is attached to the chuck housing 2 so as to be able to slide in the horizontal direction. ,1
It is fixed to one end of 0a2. Note that lla is a flange fixed to the claw receiver 7a.

On the other hand, as will be described later, the claw receiver 7b has a guide l [1l12
The solenoid 8b is attached to one end of the rod 9b of the solenoid 8b, which is fixed to the slide housing 13, in the same way as the pawl receiver 7a, to the slide housing 13, which is attached so as to be able to move in the horizontal direction while being guided by the slide housings 12a and 12b. Guide shafts 1Qb1, 10 are fixed and mounted on the slide housing 13 so as to be able to slide in the horizontal direction.
It is fixed to one end of b2. Note that 11b is a flange, which is fixed to the claw receiver 7b.

Next, 14a and 14b are fixed claws, and 15a.

15b indicates movable claws, the fixed claw 14a and the movable claw 1.
5a is attached to the lower end of the claw receiver 7a, and the fixed claw 14b and the movable claw 15b are respectively attached to the lower end of the claw receiver 7b.

Specifically, the fixed claw 14a is fixed to the claw receiver 7a via a countersunk screw so that its lower end protrudes downward from the lower end of the claw receiver 7a, and has a semicircular arc-shaped arm 16a at its lower end.
(See Figure 3). In addition, the fixed claw 14b also
It is fixed to the claw receiver 7b via a countersunk screw so that its lower end protrudes below the lower end of the claw receiver 7b, and a semicircular arc-shaped groove 16b is provided at its lower end.

On the other hand, the movable claw 15a is composed of a slide plate 17a, a toe body mounting block 18a, and a toe body 19a, which are fixed to each other and integrated. Claw receiver 7a
is installed on.

That is, the guide tool 20a has a U-shaped cross section and is fixed to both ends of the claw receiver 7a in the width direction, thereby restricting the slide plate 17a from moving in the horizontal direction.

The tension coil spring 21a has one end fixed to a bolt 22a threaded onto the guide tool 20a, and a bolt 23a threaded onto the slide plate 17a.
The other end is fixed to the guide member 20a, so that the movable claw 15a is urged downward, and the stopper block 24a, which is fixed to the slide plate 17a, is brought into contact with the upper end of the guide tool 20a.

Note that the toe body 19a has a protrusion 25a (third
(see figure), and a vertical groove 26a is provided in this protrusion 25a. Further, the side end surface (A) of the protrusion 25a and the side end surface (B) of the fixing claw 14a are located in the same vertical plane, and the upper end surface (C) of the protrusion 25a and the lower end surface (Ni) of the fixing claw 14a are located in the same vertical plane. ) are kept parallel.

The movable claw 15b is also mounted in the same manner as the movable claw 15a.

However, the toe body 19b of this is provided on the opposite side from the toe body 19a, that is, as shown in FIG. 4.

In the figure, 17b is a slide plate, 18b is a toe body mounting block, 19b is a toe body, 20b is a guide tool, 21b is a tension coil spring, 22b, 23b is a pole l-124b is a stopper block, 2' 5 b is a protrusion, 26b indicates a vertical groove.

Further, in FIG. 5, which is a Z-Z arrow view in FIG. 1, and FIG. 6, which is a right side view in FIG.
The shaft 27 is mounted so as to be able to rotate at the shaft coupling 2.
8 to a screw shaft 29, and the screw shaft 29 is located between the guide shafts 12a and 12b whose both ends are fixed to the chuck housing 2 (see FIG. 2).
and is screwed to a nut 30 fixed to the slide housing 13. Therefore, the slide housing 13 can be moved horizontally by rotating the shaft 27 in a predetermined direction.
3 moves while being guided by the guide shafts 12a and 12b''.

Note that this drive is performed by the clutch 3 fixed to the shaft 27.
1 by engaging the clutch A (not shown) on the drive source side, and thereby the movable pawl 15a
The distance between the side end surface (A) of the protrusion 25a and the side end surface (A) of the protrusion 25b of the movable claw 15b can be adjusted to a predetermined value.

Also, 32.33 indicates a brake piece, and this piece 32.3
3 are attached to a shaft 34 attached to the chuck housing 2, and are biased by compression coil springs 3 so as to press against each other to nip the brake shoes 36 (see Fig. 1), and the shaft 27 rotates freely. It prevents you from doing so. In addition,
The brake shoe 36 is composed of a two-part cylindrical body made of soft urethane rubber.

Next, we will describe how the air-core coil 1 is inserted and mounted on the printed circuit board.The air-core coil 1 is mounted on the jig plate 37 (see FIG. 1b inserted from the previous process and positioned at a predetermined position. In addition, in parallel with this, screw shaft 2
is driven to move the slide housing 13 in the horizontal direction, and the distance between the side end surface (A) of the protrusion 25a of the movable claw 15a and the side end surface (A) of the protrusion 25b of the movable claw 15b is adjusted. For example, the pitch is adjusted to be several mm larger than the pitch P1 between the leads 1b of the air-core coil 1.

Then, a clutch B (not shown) on the drive source side comes down from above the vertical shaft 4 and is engaged with the clutch 38 fixed to the vertical shaft 11114, and then the clutch B is rotated and the vertical shaft 4 is rotated 90 degrees counterclockwise. That is, the chuck housing 2 is moved from the position indicated by the two-dot chain line in FIG. 5 to the old position indicated by the one-dot chain line. At this time, the link body 39 fixed to the connector 5 is vertically IF1! The stopper bin 10a, which is rotated together with the stopper block 14 and fixed to the three ring bodies, is brought into contact with the stopper block 41a (see FIG. 2) and positioned.

Subsequently, the clutch B is lowered further and the vertical shaft 4 is moved downward. Therefore, the chuck housing 2 is lowered, and the lower ends of the movable claws 15a, 15b are brought into light contact with the upper surface of the jig plate 37. Then, when the clutch B is further lowered, the fixed pawl 14a.

The lower end (d) of the movable pawl 15a, 15b comes into contact with the upper end surface (c) of the projections 25a, 25b, and at the same time, the lowering of the clutch B is stopped.

Next is the rod 9a of the solenoids 8a and 8b.

9b is projected, and the claw receivers 7a and 7b are moved horizontally to approach each other. In addition, stoppers 42a, 42b are provided at the other ends of the rods 9a, 9b of the solenoids 8a, 8b.
The stoppers 42a and 42b provide a predetermined ejection stroke. Therefore, the ends of the coil portions of the air-core coil 1 (the ends of the coil portions 1a) are inserted into the semicircular arc-shaped grooves 16a and 16b provided in the fixed claws 14a and 14b, and the movable claws 15a and 15
Vertical groove 26a provided in protrusions 25a, 25b of b
, 26b, the lead 1b of the air-core coil 1 is inserted.

Next, the clutch B pressing the vertical shaft 6 downward is raised and moved to its original upper position. Then, it is biased by the compression coil spring 6, and the vertical @4 is also raised and moved to its original position. That is, the chuck housing 2 is moved to the upper position as shown in FIG.
4a, 14b and movable claws 15a, 15b are moved above the jig plate 37.

For this reason, the slide plates 17a, 17b are urged by the tension coil springs 21a, 21b and protrude downward, and the lower ends of the fixing claws 14a, 14b are in contact with the upper end surfaces (c) of the projections 25a, 25b. (D) is separated from the upper end surface (C) of the protrusions 25a and 2b, and as a result, the jig plate 3
The lead 1b of the air-core coil 1 is pulled out from the fixing claw 14a.

The air core coil 1 is held by the movable claws 14b and the movable claws 15a and 15b. In this state, the lower ends of the leads 1b are located within the projections 25a and 25b, and the pitch between the leads 1b is maintained at Pl.

In this way, according to the present chuck mechanism, the air-core coil 1 can be gripped dynamically so as to keep the pitch between the leads 1b constant.

Subsequently, the clutch B comes down from its original upper position and engages with the clutch 38 fixed to the vertical shaft 4, and the shaft 4 is rotated 90 degrees clockwise at 11. That is,
The chuck housing 2 is moved from the position shown by the one-dot chain line in FIG. 5 to the position shown by the two-dot chain line.

At this time, the three ring bodies fixed to the connector 5 are rotated together with the vertical shaft 4, and the stopper bin 40b fixed to the ring body 39 is brought into contact with the stopper block 41b and positioned. Thereafter, the clutch B is further lowered [! Flll 4 is moved downwards, thus
The chuck housing 2 is lowered and the movable claws 15a, 15
The lower end of b is lightly brought into contact with the upper surface of the printed circuit board.

Note that the printed circuit board is positioned in advance at a predetermined position, and when the clutch B is further lowered, the lower ends (d) of the fixed claws t4a and 14b are moved to the upper end surfaces of the protrusions 25a and 25b of the movable claws 15a and 15b. (c), and at the same time, the lowering of the clutch B is stopped.

Therefore, the lower ends (d) of the fixed claws 14a, 14b are connected to the upper end surfaces (c) of the projections 25a, 25b of the movable claws 15a, 15b.
As the lead 1b of the air-core coil 1 is brought closer to the
- Inserted into the mounting hole of the board. In this case, the lead 1b of the air-core coil 1, which is easily deformed, has the vertical grooves 26a, 26
Since it is guided by b and protrudes downward, it is possible to prevent misalignment with the mounting hole of the printed circuit board and to ensure accurate insertion.

Next, the rod 9a of the solenoids 8a, 8b.

9b is depressed and the claw receivers 7a and 7b are moved horizontally and away from each other. Thereafter, the clutch B is raised and moved to its original upper position, and therefore, biased by the compression coil spring 6, the vertical shaft 4 is also raised and moved to its original position, and the chuck housing 2 is moved to its original position as shown in FIG. The fixing claws 14a and 14b are moved to the upper position as shown in FIG.
Then, the movable claws 1a and 15b are moved above the printed circuit board. Thereafter, similarly, the air core coils 1 can be inserted and mounted one after another into the mounting holes of the printed circuit board.

In addition, in this chuck machine, the screw shaft 29f! :'
Ig4 can be moved to move the slide housing 13 in the horizontal direction, and the distance between the side end surface (a) of the protrusion 2a of the movable claw 15a and the side end surface (a) of the protrusion 25b of the movable claw 15b can be adjusted. Therefore, the pitch P1 between the leads 1b allows various types of air core coils 1 to be inserted and mounted.

An embodiment of the chuck mechanism according to the present invention has been described above, but in the present invention, the chuck support 3 may be mounted so as to be movable in the horizontal direction, and in this case, the chuck support 3 may be mounted in a uniaxial direction or orthogonally to each other. The chuck housing 2 may be mounted on the chuck support 3 so as to be movable only in the vertical direction, and the screw shaft 29 may be driven. to move the slide housing 13 in the horizontal direction, and adjust the distance between the surface 411 of the projection 2a of the movable claw 15a and the side end surface (A) of the projection 25b of the movable claw 15b. You can also omit it.

[Effects of the Invention] As described above, according to the present invention, the air-core coil can be gripped so that the pitch between the leads can automatically match the pitch between the mounting holes of the printed circuit board. It is possible to obtain a chuck R structure that can be accurately inserted into and mounted on the body.

[Brief explanation of the drawing]

Figure 1 is a front view of the chuck mechanism for inserting and mounting air-core coils.
Fig. 2 is a Y-Y arrow view in Fig. 1, and Fig. 3 is a fixed claw 14a.
FIG. 4 is a perspective view of the lower end of the movable claw 15a.
5b is a perspective view of the lower end of 5b, FIG. 5 is a Z-Z arrow view of FIG. 1, and FIG. 6 is a view of FIG. 1. The right side view and FIG. 7 are diagrams showing a state in which the air-core coil 1 is inserted and mounted on the jig plate 37. DESCRIPTION OF SYMBOLS 1...Air core coil, 1a...Coil part of air core coil, 1b...Lead of air core coil, 2...Chuck housing, 3...Chuck support, 7a, 7b...
・Claw holder, 14a, 14b・-Fixed claw, 15a, L5b
- Movable claws, 16a, 16b... - Semicircular arc groove, 21a
. 21b... tension coil spring, 25a, 25b...
Projections, 26 a, 26 b = i & 1 Applicant Toray Engineering Co., Ltd. Figure 6

Claims (1)

[Claims] In a chuck mechanism used when attaching the air-core coil to the printed circuit board by inserting the lead of the air-core coil into a mounting hole of the printed circuit board, the chuck housing is suspended from a chuck support so as to be movable up and down. a pair of claw receivers suspended from the chuck housing so as to face each other in the horizontal direction so as to be able to approach and separate from each other; A fixed claw is fixed to the fixed claw, and a movable claw is attached to each of the claw receivers so that the lower end of the claw is biased by an elastic body and protrudes downward from the lower end of the fixed claw, and each of the fixed claws has the following features: A groove is provided at the lower end into which the end of the coil portion of the air-core coil can be inserted, and each of the movable claws has a protrusion at the lower end thereof having an upper end face facing the lower end face of the fixed claw, and A chuck mechanism for inserting and mounting an air-core coil, characterized in that the protrusion is provided with a groove into which a lead of the air-core coil can be inserted.