JPH01132200A - Insertion head mechanism of air-core coil insertion device - Google Patents

Abstract

PURPOSE:To insert various kinds of air-core coils into an interval between one pair of leads by a method wherein one side of one pair of chucks is mounted in such a way that it can be shifted in a winding-core direction of a air-core and one side of one pair of pushers is mounted in such a way that it can be shifted in an identical direction by following a movement of the chuck, or the like. CONSTITUTION:The following are provided: a head bracket 5 suspended at an arm mechanism 3; a vertical shaft 7 which pierces the head bracket 5 so as to be shifted downward by using a shaft-pushing means 77 and which has been energized upward; a chuck 6a which grasps one lead 1b of an air-core coil 1 by means of one pair of claws 62; a chuck 6b which grasps the other lead 1b of the air-core coil 1 by means of one pair of claws 34; one pair of pushers 8a, 8b which push the air-core coil 1 provisionally inserted into a printed-circuit board from the upper part. One chuck 6a is mounted on the head bracket 5 in such a way that it can be shifted in a winding-core direction of the air-core coil 5; one pusher 8a is mounted on a lower end of the vertical shaft 7 in such a way that it can be shifted in a winding-core direction of the chuck 6a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an insertion head mechanism for an air-core coil insertion device.

[Prior Art] Conventionally, in the mounting process of a printer board for a tuner, a thin wire (for example, a wire with a wire diameter d of 0.3 mm) is wound into a coil to form an air core portion 1a as shown in FIG. The formed air-core coil 1 is manually inserted into the printed circuit board, that is, the worker grasps the air-core coil l using an appropriate jig and inserts the pair of leads 1b into the holes in the printed circuit board. Was.

[Problems to be Solved by the Invention] However, it has the disadvantage that it is difficult to insert it quickly and troubles such as insertion errors are likely to occur.

Therefore, the development of an automatic insertion device was considered.
For example, as disclosed in Japanese Unexamined Patent Publication No. 178000/1983, an automatic insertion device has been proposed in which an insertion head mechanism is attached to an arm mechanism.

However, in this insertion device, the insertion head mechanism is attached to a head bracket that is suspended from an arm mechanism, and a chuck for gripping the air-core coil, which is equipped with a pair of side claws and one center claw, is printed on a plate. It consists of a pusher that presses the air core coil inserted into the board from above,
and in a state where the center claw is inserted between a pair of leads of the air-core coil to be gripped, the chuck is configured such that the lead can be clamped by bringing the both side members close to both end surfaces of the center claw, respectively. Because the pusher is always moved up and down at the same point, air-core coils with the same pitch P1 (see Figure 11) between the pair of leads 1b are inserted one after another. Even if it is possible, if the pitch P1 is difficult to insert various air core coils one after another, and if the pitch P1 is to insert an air core coil with a relatively large pitch, It has the disadvantage that coil deformation tends to occur during the process.

The present invention has focused on such a problem, and as a result of intensive studies from various aspects to solve this problem, the present invention has developed an insertion head mechanism that is suspended from an arm mechanism, and includes a pair of chucks, a pair of pushers, and a pair of pushers. One of the chucks is mounted so that it can move in the direction of the winding core of the air-core coil, and one of the pushers is made to follow the movement of the chuck in the direction of the winding core so that it can move in the same direction. They discovered that it is sufficient to configure the system by attaching it to the

[Means for Solving the Problems] That is, the insertion head mechanism for an air-core coil insertion device according to the present invention includes a head bracket that is suspended on an arm mechanism that includes a shaft pushing means, and a head bracket that is suspended on an arm mechanism that includes a shaft pushing means. a vertical shaft that passes through the head bracket and is biased upward by an elastic body so that it can be moved downward by a chuck that grips one lead of the air-core coil with a pair of claws;
A chuck that holds the other lead of the air-core coil between a pair of claws, and a pair of pushers that press the air-core coil inserted into the printed circuit board in a plate form from above,
One of the chucks is attached to the head bracket on which the other chuck is attached so that it can move in the direction of the winding core of the air-core coil to be gripped, and one of the pushers is , the other pusher is attached to the lower end of the vertical shaft to which the other pusher is attached so that it can move in the same direction following the movement of the chuck in the direction of the winding core. be.

[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 right side view of FIG. 1, 2 represents an insertion head mechanism, and 3 represents an arm mechanism. In the insertion head machine 4742, the movable chuck 6a, the fixed chuck 6b, and the vertical shaft 7 are attached to the head bracket 5 suspended on the bracket 4 of the arm 111m3, and the lower end of the vertical shaft 7 A movable pusher 8a and a fixed pusher 8b (see FIG. 4) are attached to the holder.

The head bracket 5 is fixed by a set screw 11 to a horizontal shaft 9.10 rotatably mounted on the bracket 4 of the arm mechanism 2, and is also attached to the bracket 4 by a bolt 24 (see FIG. 2). Fixed.

Further, the vertical shaft 7 is fitted into a bearing 12 fixed to the head bracket 5, and has a lower end protruding below the head bracket 5, an upper end protruding above the head bracket 5, and a compression coil spring 13 extending upwardly. It is biased and installed.

Furthermore, a movable pusher 8a and a fixed pusher 8b
As shown in FIG. 3 which is an enlarged view, FIG. 4 which is a right side view of FIG. 3, and FIG. 5 which is a view taken along the line X-X in FIG. Piston rod 15a.

15b, and the air cylinders 14a, 14b are fixed to the lower end of the vertical shaft 7, respectively.
The kite shafts 18a and 18b are fitted onto the cam bracket 17, which is fixed to the cam bracket 17, and are urged in directions facing each other by tension coil springs 19a and 19b, so that they are pressed against the cam bracket 17, respectively. There is.

The coil springs 19a, 19b are attached at both ends to pins 20a, 20b fixed to the air cylinders 14a, 14b, and the upper end of the vertical shaft 7 is
A shaft support bracket 22, which rotatably attaches the roller 21, is fixed, and a cam bracket 17, which is not shown in FIG. 1 but is shown in FIG. There are uneven cam surfaces 2 on both left and right ends of the
3a and 23b are formed.

Next, the stationary side carriage 6b is as shown in FIG. 6 which is an enlarged view, FIG. 7 which is a left side view of FIG. 6, and FIG. 8 which is a right side view of FIG. , a horizontal shaft 25 whose both ends are supported and fixed to the head bracket 5, and this shaft 2.
5 and fixed by a set screw 26;
A chuck bracket 28 and a spring mounting bracket 29 fitted to this bearing 27, and a chuck bracket 28
A pin 32 is fitted into a hole 30 penetrated by the pin 32 and fixed by a knock pin 31, levers 33a and 33b fitted to the bottle 32, and a lever 33a.

claws 34a and 34b fixed to the lower ends of levers 33b, compression coil springs 35 inserted into holes provided in levers 33a and 33b, air cylinder 36 fixed to chuck bracket 28, and piston rod 37 of cylinder 36. A cam 38 fixed to the cam 38, a spring mounting bolt 39 threaded to the head of the bottle 32, a pin 41 fixed to the spring mounting bracket 29 across the through hole 40, and a spring mounting bolt 39 and a tension coil spring 42 whose other end is locked to a pin 41.

The spring mounting bracket 29 is fixed with a set screw 43, and the chuck bracket 28 is attached so as to be able to swing, and the bracket 28 has a protrusion 4.
4.45 is formed.

On the other hand, as shown in FIG. 9, which is an enlarged view, and FIG. 8, which is a right side view of FIG. is the output shaft 4 of the Stella Pink motor 47
8 and fixed by a set screw 49, the other end of which is supported by the head bracket 5 via a bearing 50, and a guide shaft 52 which is supported and fixed by the bent/y-doped plug 5 at both ends. , a nut shaft 55 screwed to the threaded portion 53 of the screw shaft 51 and fitted to the unthreaded portion 54; and a chuck bracket 56 fitted to this shaft 55. , a spring mounting bracket 57 that is fitted onto the nut shaft 55 and fixed with a set screw so as to be guided by the guide shaft 52; and a knock pin 59 that is fitted into a hole 58 passed through the chuck bracket 56. A fixed bottle 60, levers 61a and 61b fitted to this bottle 60, and lever 6
claws 62a, 62b fixed to the lower ends of 1a, 61b;
A compression coil spring 63 inserted into holes provided in the levers 61a and 61b, an air cylinder 65 fixed to the chuck bracket 56, and this cylinder 65.
The cam 67 fixed to the piston rod 66 of
0, a pin 70 fixed to the spring mounting bracket 57 so as to cross the through hole 69, and one end of which is locked to the spring mounting bolt 68. It is composed of a tension coil spring 71 whose other end is locked to a pin 70.

Note that the chuck bracket 56 is mounted so as to be swingable, and protrusions 72 and 73 are formed on the bracket 56, and a nut 74 is screwed onto the nut shaft 55.

Next, to describe the driving mode of both chucks 6a and 6b, in the stationary chuck 6b, the air cylinder 3
When the cam 38 is moved up and down via the lever 6, the lever 33a,
33b is swung about the pin 32 by the action of the compression coil spring 35, so that the claws 34a and 34b can be moved toward or away from each other.

Then, the chuck bracket 28 is attached by means described later.
When the bearing 27 is pivoted to the right in FIG. 6 as a fulcrum, the claws 34a and 34b are also pivoted in the same direction, and the action of the tension coil spring 42 causes the chuck bracket 28 to swing back to its original position. When moved, the claw 34
a and 34b can also be swung together.

Also in the movable chuck 6a, the air cylinder 65
When the cam 67 is moved up and down via
6 lb is pressed against the pin 6 by the action of the compression coil spring 63.
0 as a fulcrum, the claws 62a and 62b can be moved toward or away from each other. Further, when the chuck bracket 56 is swung to the left in FIG. 9 using the nut shaft 55 as a fulcrum by the means described later, the pawls 62.1.62b can also be swung in the same direction, and the tension When the chuck bracket 56 is swung back to its original position by the action of the coil spring 71, the claw 6
2a and 62b can also be swung together.

Note that when the screw shaft 51 is driven and rotated via the stepping motor 47, the nut shaft 55 moves in the axial direction, so that the pawls 62a and 62b can also be moved in the same direction.

In this way, the movable chuck 6a is fixed to the fixed chuck 6.
The main difference is that the screw shaft 51 is mounted so as to be movable in the axial direction of the screw shaft 51.

Next, the manner in which the air core coil 1 is held by the chucks 6a and 6b will be described. As shown in FIG. One lead 1b of the air-core coil 1 is held between 62a and 62b, and the other lead 1b of the air-core coil 1 is held between the claws 34a and 34b of the stationary chuck 6b.

In this case, as shown in FIG. 13, the lower end of the lead 1b is connected to the claw 34a*34.
b + 62 a and 62 b are held so as to protrude downward by a predetermined length.

In addition, when clamping the lead 1b, the stepping motor 47 is activated as described above to move the claws 62a and 62b of the movable chuck 6a, and the claws 3 of the fixed chuck 6b are moved.
The distance between the chucks 4a and 34b is adjusted to a predetermined value, that is, the pitch between the chucks is adjusted to a pitch suitable for holding the lead 1b at a pitch P1, and the air cylinder 65 moves the cam 6
7 up and down to a predetermined value, the interval between the claws 62a and 62b is adjusted to a predetermined value, that is, the pitch between the claws is adjusted to a pitch suitable for clamping the lead 1b having a wire diameter d, and the fixed side chuck 6b
Similarly, the distance between the claws 34a and 34b is adjusted to a predetermined value by moving the cam 38 up and down in a predetermined manner using the air cylinder 36.

The pitch between the chucks is adjusted by moving the claws 62a, 62b of the movable chuck 6a in the front-rear direction, that is, in the direction of the winding core of the air-core coil 1 in FIG.

Next, the manner in which the air core coil 1 held by both chucks 6a and 6b is inserted into a printed circuit board will be described. By moving the arm tRm3 below the bracket 4, which will be described later, the insertion head t[2 is Both chucks 6a are moved downward in stroke.

The lower ends of the leads 1b protruding downward from the claws 34a, 34b, 62a, 62b of the leads 1b are inserted into the holes 76 of the printed circuit board 75 as shown in FIG. .

Subsequently, by the downward movement of the shaft pushing cam 77 (see FIG. 15) of the arm machine 4i13, the vertical shaft 7 is moved downward by a predetermined stroke, and as shown in FIG. Both pushers 8a, 8 attached to the lower end
b, the air-core coil 1 is pressed from above and brought into pressure contact with the printed circuit board 75.

In this case, both pushers 8a.

As shown in FIG. 11, the pushers 8b abut against and press both ends of the hollow core portion 1a, but both pushers 8a, 8b
The pitch adjustment between the chucks is performed following the pitch adjustment between the chucks, which is performed when the air core coil 1 is gripped by both chucks 6a and 6b.

That is, the chuck bracket 2 of the stationary chuck 6b
A protrusion 44 formed at 8 projects into one of the recesses 78a shown in FIG. 5 (see FIG. 3) to form the air cylinder 14a.

Similarly, the protrusion 72 formed on the chuck bracket 56 of the movable chuck 6a and sandwiched between the air cylinders 14b and 14b also protrudes into the other recess 78b and is sandwiched between the air cylinders 14a and 14b. 47 to move the claws 62a, 62b to a predetermined position, the movable pusher 8a can be moved to a predetermined position following the movement of the chuck bracket 56, and therefore the air core coil 1 to be gripped can be moved to a predetermined position. Both pushers 8a, so as to be able to contact both ends of the hollow core portion 1a,
8b can be adjusted.

Further, at the same time that the pushers 8a and 8b are brought into contact with both ends of the hollow core portion 1a, the air cylinders 65.36 of both chucks 6a and 6b are operated to move the cams 67.38 upward, and one lead 1b is moved upward. The claw 62a of the movable chuck 6a is holding the movable chuck 6a.

62b are swung about the pin 60 as a fulcrum and separated from each other, and the claws 34a and 34b of the stationary chuck 6b holding the other lead 1b are swung about the pin 32 and separated from each other. and both chucks 6a, 6
The grip of the air-core coil 1 by b is released.

Then, just before the air-core coil 1 is pressed against the printed circuit board 75, as shown in FIG. At the same time, the claws 34a and 34b of the stationary chuck 6b are swung leftward about the bearing 27.

That is, based on FIG.
4a, 34b in detail, the vertical axis 7 moves when the cam 77 of the arm mechanism 3 is not acting.
It is urged by the compression coil spring 13 and moved upward, and in this state, the lower protrusion 23b1 formed on the cam surface 23b of the cam bracket 17 is pushed against the protrusion 45 formed on the chuck bracket 28. The large diameter portion 7a of the vertical shaft 7 is in contact with the lower end of the bearing 12.

However, when the shaft pushing cam 77 on the horizontal arm R acts and the vertical shaft 7 is moved downward, the upper protrusion 23b2 formed on the cam surface 23b of the cam bracket 17 is formed on the chuck bracket 28. abuts against the protrusion 45 that is
The chuck bracket 28 is pushed to the right. Therefore, the chuck bracket 28 is swung to the right using the bearing 27 as a fulcrum, and the claws 34a and 34b are also swung together.

Similarly, in the movable chuck 6a, when the shaft 7 is moved downward, the upper protrusion 23a2 formed on the cam surface 23a of the cam bracket 17 comes into contact with the protrusion 73 formed on the chuck bracket 56. The chuck bracket 56 is pushed to the left in contact with the chuck bracket 56, so that the chuck bracket 56 is swung to the left about the nut shaft 55, and the claws 62a and 62b are also swung together. Note that the pushers 8a and 8b are positioned so that the piston rods 15a and 15b of the air cylinders 14a and 14b are projected by a predetermined stroke.

In this way, the air-core coil 1 can be inserted into the printed circuit board 75, and once the insertion is finished, the bracket 4 of the arm mechanism 3 and the shaft pushing cam 77 are subsequently moved upward. FIG. 1.2 shows a state in which the bracket 4 and the shaft pushing cam 77 have been moved upward, and the shaft pushing cam 77 has been moved above the roller 21 attached to the upper end of the vertical shaft 7. .

Note that when the shaft pushing cam 77 is moved upward, the vertical shaft 7 is urged by the compression coil spring 13 and moved upward, and the cam bracket 17 is also moved upward together, so both chucks 6a, 6b chuck bracket 56.2
8 is swung back to its original position as shown in FIG. 3 by the action of the tension coil spring 71.42, and accordingly the pawls 62a, 62b, 34a, 34b are also swung back to their original position.

Next, in FIG. 1.2, FIG. 15 which is a 2-arrow view in FIG. 1, and FIG. 16 which is a Y-Y arrow view in FIG. 2, the arm? [The main parts of mechanism 3 are shown, but this mechanism 3 includes a hollow shaft 80 mounted so as to be vertically movable and rotatable by a drive device mounted on a ceiling frame (not shown).
, a center shaft 81 mounted inside the hollow shaft 80 so as to be able to move up and down by another drive device mounted on the frame; a bracket 4 fixed to the lower end of the hollow shaft 80; A shaft pushing cam 77 fixed to the lower end of the shaft 81 and a rack guide 8 fixed to the bracket 4
2, a rack 83 mounted so as to be able to move up and down via a rack guide 82, a pinion 84 meshed with the rack 83 and fixed to the horizontal shaft 10, and a rack guide 82.
A tension coil spring 87 has one end locked to a pin 85 screwed to the rack 83 and a tension coil spring 87 locking the other end to a pin 86 screwed to the rack 83. It is fitted into an elongated guide hole 88. In addition, 89 shown in FIG.
is a guide bar.

Therefore, according to the arm mechanism 3, the insertion head mechanism 2 can be rotated together with the bracket 4 by the rotation of the hollow shaft 8o, and both chucks 6a and 6b can be positioned in a predetermined direction. By moving the insertion head R structure 2 up and down together with the bracket 4, both chucks 6a,
6b can be moved toward and away from the printed circuit board 75, and furthermore, the pinion 84 based on the vertical movement of the hollow shaft 80
By rotating the horizontal shaft 10, the insertion head mechanism 2 can be swung to position both chucks 6a and 6b in the horizontal direction.

In addition, in order to receive the air-core coil 1 to be inserted, both chucks 6a and 6b are positioned in the horizontal direction.Next, we will describe the swinging mode as shown in Fig. 1.2. When the bracket 4 is moved upward through the middle λ axis 80, the rack 83 is moved together with the bracket 4.
The rack 83 is also moved upward, and when the upper end of the rack 83 comes into contact with a fixed stopper (not shown), the rack 83 is stopped.

However, since the bracket 4 is moved further upward, the horizontal shaft 10 is rotated together with the pinion 84, and the head bracket 5 is swung leftward in FIG. 6a, 6b can be positioned horizontally.

In this case, the shaft pushing cam 77 is moved upward via the center shaft 81 so as to follow the upward movement of the bracket 4.

Both chucks 6a are positioned horizontally.

When the air core coil 1 to be inserted can be grasped by the bracket 6b, the bracket 4 is moved downward via the hollow shaft 80,
Therefore, the horizontal shaft 10 is rotated together with the pinion 84, and the head bracket 5 is swung rightward in FIG. . In this case as well, the cam 77 is connected to the bracket 4 via the center shaft 81.
is moved downward to follow the downward movement of .

Hereinafter, the air core coil 1 can be inserted and attached to the printed circuit board 75 as described above based on FIGS. 13 and 14.
The printed circuit board 75 is positioned at a predetermined position by an XY child table (not shown).

[Effects of the Invention] As described above, according to the present invention, the pair of leads 1b
It is possible to obtain an insertion head mechanism for an air-core coil insertion device that can insert various air-core coils with a pitch P1 between the two.

[Brief explanation of the drawing]

Figure 1 is a front view of the insertion head mechanism for an air-core coil insertion device, Figure 2 is a right side view of Figure 1, Figure 3 is an enlarged view showing how the pusher is attached, and Figure 4 is Figure 3. right side view, 5th
The figures are a X-X arrow view of Fig. 4, Fig. 6 is an enlarged view of the stationary chuck, Fig. 7 is a left side view of Fig. 6, Fig. 8 is a right side view of Fig. 6, and Fig. 9 is a left side view of Fig. 6. The figure is an enlarged view of the movable chuck, FIG. 10 is a right side view of FIG. 9, FIG. 11 is a diagram showing the action of the pusher on the air-core coil, and FIG. A view from below, FIG. 13 is a diagram showing an air-core coil inserted into a printed circuit board in a plate state, and FIG. 14 is a diagram showing an embodiment in which an air-core coil is pressed and inserted into a printed circuit board. Figure 15 is a Z arrow view of Figure 1.
FIG. 6 is a view taken along the YY arrow in FIG. 2. 1... Air core coil, 1a... Air core part of the air core coil,
1b... Air core coil lead, 2... Insertion head mechanism, 3... Arm fall, 5... Head bracket, 6a... Movable side chuck, 6b... Fixed side chuck, 7... ...Vertical axis, 8a...Movable side pusher, 8
b... Fixed side pusher, 13... Compression coil spring (elastic body), 34a, 34b... Fixed side chuck claw, 62a, 62b... Movable side chuck claw, 75...
・Printed circuit board, 77...Shaft pushing cam (shaft pushing means)
. Applicant: Toray Engineering Co., Ltd. Figure 11 (Lead) 34b (/'Toray Figure 13 Figure 14 d Figure 15 Figure 16

Claims (1)

[Claims] A head bracket that is suspended on an arm mechanism that includes a shaft pushing means, and a head bracket that is mounted so as to pass through the head bracket so that it can be moved downward by the shaft pushing means and is urged upward by an elastic body. a chuck that clamps a vertical shaft and one lead of the air-core coil with a pair of claws; a chuck that clamps the other lead of the air-core coil with a pair of claws;
a pair of pushers for pressing an air-core coil inserted into a printed circuit board in a board state from above; one of the chucks has an air-core coil that is to be gripped by the head bracket to which the other chuck is attached; One of the pushers is attached to the lower end of the vertical shaft, on which the other pusher is attached, to follow the movement of the chuck in the direction of the winding core. An insertion head mechanism for an air-core coil insertion device, characterized in that the insertion head mechanism is mounted so that the coils can be moved in the same direction.