JPH06302996A - Device and method for reforming lead wire - Google Patents

Abstract

PURPOSE:To provide a device and method for reforming lead wires by which lead wires can be easily reformed with a simple structure and the workability of the reforming work can be improved. CONSTITUTION:The device is provided with an auxiliary reforming machine 3 which holds a stem 2 mounted with a lead wire 1 having inner leads 1a and lead terminals 1b and a circular-hole jig (reforming machine) 5 which has circular holes 4 into which the unreformed inner leads 1a can be inserted and is placed on the placing surface 3a of the machine 3 in such a state that the machine 5 can be moved against the surface 3a. The inner leads 1a inserted into the holes 4 and 4 are reformed by moving the machine 5 and bringing the side walls of the holes 4 into collision with the leads 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead wire straightening device and a lead wire straightening method for straightening a lead wire mounted on a stem.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9, the straightening of a lead wire of this kind has been performed by tilting a plurality of inner leads 2 attached to one stem 20.
1, 2, 21, each stem 2 by tweezers 22 etc.
Bending one by one every 0, it takes time and labor, and it often happens that the correction is incomplete due to the difference between workers, and moreover, there are a lot of stems 20 in terms of workability. I have a problem with.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a lead wire straightening device and a lead wire straightening method which have a simple structure, can be easily straightened, and can improve workability. .

[0004]

SUMMARY OF THE INVENTION The present invention has an auxiliary straightening machine for holding a stem to which a lead wire is attached and a mounting hole for the auxiliary straightening machine having a round hole into which a lead wire before straightening can be inserted. It is a lead wire straightening device provided with a straightening machine that is mounted so as to be movable relative to a surface and that straightens the lead wire inserted into the round hole by colliding the round hole.

Further, according to the present invention, the above-mentioned lead wire straightening device is used to hold the stem on which the lead wire is mounted on the auxiliary straightening machine, and subsequently, the mounting surface of the auxiliary straightening machine has a round hole. The straightening machine is inserted by placing the uncorrected lead wire in the round hole, and then the straightening machine is rotationally moved relative to the mounting surface of the auxiliary straightening machine to straighten the lead wire. A method of straightening a lead wire is provided.

From another point of view, the present invention has an auxiliary straightening machine for holding a stem to which lead wires are attached, a round hole into which a lead wire before straightening can be inserted, Is mounted on the mounting surface of the auxiliary straightening machine so as to be relatively displaceable relative to the auxiliary straightening machine in directions perpendicular to each other, and the round hole is made to collide with the lead wire inserted into the round hole. According to the present invention, there is provided a lead wire straightening device including a straightening machine capable of straightening and forcibly bending a lead wire in each of the X direction and the Y direction.

Further, by using the lead wire straightening device, the stem to which the lead wire is attached is held by the auxiliary straightening machine, and then the straightening machine having a round hole on the mounting surface of the auxiliary straightening machine. The lead wire is straightened by inserting the lead wire into the round hole before the straightening and placing the lead wire, and then sequentially displacing the straightening machine in the directions orthogonal to each other in the X and Y directions. Provide a way.

[0008]

With the above construction, the straightening machine is mounted on the auxiliary straightening machine holding the stem with the uncorrected lead wire inserted into the round hole, and the straightening machine is relatively assisted with respect to the auxiliary straightening machine. By rotating on the mounting surface of the straightening machine, the round wire can be collided with the lead wire before straightening and the bent lead wire can be straightened. In addition, from another point of view, on the mounting surface of the auxiliary straightening machine, a straightening machine having a round hole is placed by inserting a lead wire before straightening into the round hole, and then the straightening machine is set in the X direction and Since the lead wire is straightened by sequentially displacing the lead wire in the directions perpendicular to each other in the Y direction relative to the auxiliary straightening machine, the lead wire is forcibly bent in each of the X direction and the Y direction. As a straightening mechanism, a rotary drive unit that rotationally drives the straightening machine was required in the above, but while the straightening machine is driven by a simple straightening mechanism that replaces the rotary drive unit, the bending of the lead wire is It is easier to control and can be corrected at once. In addition, compared to the conventional method, correction can be performed simultaneously with a large number of stems instead of each stem, and furthermore, an arbitrary number of lead wires can be simultaneously added regardless of the number of lead wires attached to each stem. Can be corrected.

[0009]

Embodiments of the present invention will be described below. In addition,
The invention is thereby not limited. 1 to 3 show a first embodiment of the present invention. 1 to 3, the lead straightening device includes an auxiliary straightening machine 3 for holding a stem 2 to which a lead wire 1 having an inner lead 1a having a radius r and a lead terminal 1b is attached, an inner straightening lead 1a before straightening, 1a, 1a has a round hole 4 of radius R into which it can be inserted and is movably mounted relative to the mounting surface 3a of the auxiliary straightening machine 3, whereby the round holes 4, 4, 4 are mounted. Inserted uncorrected inner leads 1a, 1a, 1a
A round hole jig (straightening machine) 5 capable of colliding the round holes 4 with the inner leads 1a to straighten them (shown by two-dot chain lines in FIGS. 1 and 2) is mainly provided.

Further, the stem 2 is composed of a disc-shaped lead wire mounting portion 7 having a flange 6, and the auxiliary straightening machine 3 has a fitting shoulder portion (fitting portion) 8 for fitting with the flange 6. The lower fixing jig (first auxiliary correction plate) 9 on which the stem 2 is mounted, and the lower fixing jig 9 on which the stem 2 is mounted have a fitting port 10 into which the lead wire mounting portion 7 can be fitted. Furthermore, the flange 6 and the fitting inlet 1 fitted on the fitting shoulder 8 are further mounted.
It comprises an upper fixing jig (second auxiliary correction plate) 11 capable of sandwiching the stem 2 with a lower fixing jig 9 via a lead wire mounting portion 7 fitted in 0. Then, the circular hole jig 5 moves the movable plate 13 connected to the rotary drive unit (XY robot) 12 in order to cause the uncorrected inner lead 1 a to collide with the circular hole 4.
The moving plate 13 is provided with a round hole 4.

Further, the fitting shoulder portion 8 of the lower fixing jig 9 and the fitting inlet 10 of the upper fixing jig 11 have the numbers corresponding to the stems 2, respectively, and further, the lead wires 1 attached to the respective stems 2 , 1, 1 have a plurality of lines. In this embodiment, as shown in FIG. 2, the lead wires 1, 1, 1 attached to the stem 2 have three
Two of them are straightened by the straightening device, and a round hole group 44 made up of round holes 4, 4, 4 of a number corresponding to the number of lead wires 1, 1, 1 is used for round hole repairing. The tool 5 has.
Although only one stem 2 to be corrected is shown in FIGS. 1 and 2, in reality, a plurality of stems 2 ... Are the correction targets, and these are simultaneously the lower fixing jig 9 and the upper fixing jig. It can be corrected using a tool and a round hole jig 5. That is, although not shown in FIGS. 1 and 2, the round hole jig 5 is the stem 2
Has a number of round hole groups 44 corresponding to the number [100 (for example, 10 × 10)], and the round hole groups 44 ... Are respectively attached to the lead wires 1 attached to the respective stems 2. The number of round holes 4, 4, 4 is the same as the number of 1, 1 (for example, three as shown in FIG. 2) (for example, three as shown in FIG. 2). Therefore, the moving plate 13 of the round hole jig 5 is
.., and each round hole group 44 has three round holes 4, 4, 4 (not shown). further,
The lead wires attached to each stem do not necessarily have to be the same, and among the number of lead wires attached to each stem, the stem having the maximum number of lead wires is made to correspond to the maximum number of lead wires. It is possible to use the moving plate 13 provided with a group of round holes having the same number of round holes.

Since this embodiment has the above-mentioned structure, in order to correct the inner leads 1a, 1a, 1a,
First, as shown in FIG. 1, the inner leads 1a, 1a,
The stem 2 to which 1a is mounted is sandwiched between the lower fixing jig 9 and the upper fixing jig 11. At this time, the stem 2 is attached to the lower fixing jig 9
Since the lead wire mounting portion 7 is further fitted into the fitting inlet 10 of the upper fixing jig 11 after being mounted on the fitting shoulder portion 8 of the above through the flange 6, the stem 2 is mounted on the mounting surface 3a. It is fixed not only in the X, Y and θ directions parallel to each other but also in the Z direction.

Next, the stem 2 is covered with a round hole jig 5 (see FIGS. 1 and 4). At this time, if 100 stems 2 (for example, 10 × 10) are prepared, the movable plate 13 of the round hole jig 5 has a group of 100 round holes 44 ... If 1a, 1a, and 1a are three, then 300
The moving plate 13 having the individual round holes 4 is put on the stem 2. Next, the moving plate 13 is rotationally moved relative to the mounting surface 3a (see FIG. 1). At this time, first, as shown in FIG. 5, in each stem 2, the rotary drive unit 12 of the round hole jig 5 moves the moving plate 13 in the direction of the arrow to form the round holes in the inner leads 1a, 1a, 1a. 4, 4 and 4 are brought into contact with each other to determine the initial position of the moving plate 13,
The radius of gyration of (R-r), the inner leads 1a, 1
The moving plate 13 is rotated in the direction of the arrow with respect to the mounting surface 3a around a and 1a (see FIGS. 7 and 6). After the correction operation is completed, the rotary drive unit 12 moves the moving plate 13 upward from the mounting surface 3a (see FIG. 3). This allows 3 at the same time
00 inner leads 1a ... Can be simultaneously corrected by one moving plate 13 (see FIG. 2).

As described above, in this embodiment, the bent inner lead 1a is attached to the lower fixing jig 9 having a simple structure.
A plurality of upper fixing jigs 11 and round hole jigs 5 can be simultaneously corrected. Further, since the round hole jig 5 is used, the fatigue of the inner lead 1a can be minimized as compared with the case where the inner lead 1a is corrected by tweezers or the like.

In this embodiment, the round hole jig for simultaneously correcting the inner leads of the three stems is shown. However, by changing the round hole of the round hole jig to a desired one, It is also possible to correct each book individually.

In this embodiment, the auxiliary straightening machine 3 is fixed and the round hole jig 5 of the straightening machine is driven with respect to the mounting surface 3a, but the round hole jig 5 is fixed. Then, the auxiliary straightening machine 3 can be configured to be driven.

When the inner lead before straightening has a spring property, the radius of rotation of the moving plate 13 is not (R-r) from the beginning, but is initially (R-r). It is preferable that the rotational radius is made to be slightly larger than that, and then the rotational radius is gradually converged to (R−r).
By doing so, it is possible to prevent the inner lead after correction from returning to the bent state before correction due to its elasticity.

FIG. 8 shows an auxiliary fixture consisting of a lower fixing jig 9 on which the stem 2 is placed, and an upper fixing jig 11 which holds the stem 2 between the lower fixing jig 9 and a flange 6. Straightening machine 3
On top of this, a straightening machine 5 as a stem correcting jig having a round hole 4 into which 300 uncorrected inner leads 1a are inserted is superposed to force all the inner leads 1a in the X direction and the Y direction, respectively. A second embodiment of the present invention will be shown in which it is bent and straightened.

In this embodiment, the inner leads 1a, 1a,
To correct 1a, as shown in FIG. 8, the stem 2 having the inner leads 1a, 1a, 1a mounted thereon is clamped by the lower fixing jig 9 and the upper fixing jig 11. Then, the stem 2 is covered with the straightener 5.

Next, first, the straightening machine 5 is moved in the positive direction of the X-axis by an XY driving unit (not shown) to X ₁ (for example, when each round hole 4 of the straightening machine 5 has a diameter of 2 mm, X ₁ = 1.5mm is preferable) Move all 300 inner leads 1a
Forcibly bend in the + X direction by the same amount.

Subsequently, this time, the straightening machine 5 is moved in the negative direction of the X-axis by X ₂ (for example, when each round hole 4 of the straightening machine 5 has a diameter of 2 mm, X ₁ = 0.8 mm is preferable). Move 3
By forcibly bending all the 00 inner leads 1a in the -X direction by the same amount, all bending of the inner leads 1a in the X-axis direction is eliminated.

The same applies to the straightening in the Y direction. First, the straightening machine 5 is moved in the positive direction of the Y axis by Y ₁ (for example, when each round hole 4 of the straightening machine 5 has a diameter of 2 mm, Y ₁ = 1.5m
(preferably m) is moved to forcibly bend all 300 inner leads 1a in the + Y direction by the same amount.

Next, this time, the straightening machine 5 is moved in the negative direction of the Y axis by Y ₂ (for example, when each round hole 4 of the straightening machine 5 has a diameter of 2 mm, X ₁ = 0.8 mm is preferable). Move 3
By forcibly bending all the 00 inner leads 1a in the -X direction by the same amount, all bending of the inner leads 1a in the Y-axis direction can be eliminated. In this way, X-
Y-direction bending correction can be achieved.

As described above, in this embodiment, as in the first embodiment, a plurality of bent inner leads 1a are formed by the lower fixing jig 9, the upper fixing jig 11 and the straightening machine 5 having a simple structure. The book can be straightened at the same time, and the straightening machine 5
In addition to the advantage that the fatigue of the inner lead 1a can be minimized as compared with the case where the inner lead 1a is corrected by tweezers, the straightening machine 5 is fixed to the upper fixing jig in the directions orthogonal to each other in the X direction and the Y direction. Since the inner leads 1a are corrected by sequentially displacing the inner leads 1a relative to each other, all the inner leads 1a are forcibly bent in the X direction and the Y direction, respectively. In the embodiment, the large rotary drive unit 12 that rotationally drives the straightening machine 5 is required, but while the straightening machine 5 is driven by a simple straightening mechanism that replaces the rotary drive unit 12, the bending of the inner lead 1a is Compared with that of the first embodiment, there is an advantage that the control is easier and the batch correction is possible.
Therefore, the insertion probability can be improved and the productivity can be increased. In this embodiment as well, the straightener 5 side may be fixed and the auxiliary straightener 3 side having the upper fixing jig 11 may be driven.

[0025]

As described above, according to the present invention, the straightening machine is mounted on the auxiliary straightening machine holding the stem with the uncorrected lead wire inserted into the round hole, and the straightening machine is used as the auxiliary straightening machine. On the other hand, the auxiliary straightening machine is rotated relative to the mounting surface of the auxiliary straightening machine so that the round hole collides with the uncorrected lead wire and the bent lead wire can be straightened. In addition, from another point of view, on the mounting surface of the auxiliary straightening machine, a straightening machine having a round hole is placed by inserting a lead wire before straightening into the round hole, and then the straightening machine is set in the X direction and Since the lead wire is straightened by sequentially displacing the lead wire in the directions perpendicular to each other in the Y direction relative to the auxiliary straightening machine, the lead wire is forcibly bent in each of the X direction and the Y direction. As a straightening mechanism, a rotary drive unit that rotationally drives the straightening machine was required in the above, but while the straightening machine is driven by a simple straightening mechanism that replaces the rotary drive unit, the bending of the lead wire is It is easier to control and can be corrected at once. In addition, compared to the conventional method, correction can be performed simultaneously with a large number of stems instead of each stem, and furthermore, an arbitrary number of lead wires can be simultaneously added regardless of the number of lead wires attached to each stem. There is an effect that it can be straightened and workability can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an overall configuration showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a correction operation in the above embodiment.

FIG. 3 is an explanatory diagram of a main part configuration showing a correction operation and its front and rear in the embodiment.

FIG. 4 is a structural explanatory view showing a state before a correction operation in the above embodiment.

FIG. 5 is a structural explanatory view showing the start of a correction operation in the above embodiment.

FIG. 6 is a configuration explanatory view showing a correction operation in the above embodiment.

FIG. 7 is a structural explanatory view showing the principle of a correction operation in the above embodiment.

FIG. 8 is an explanatory diagram of an overall configuration showing a second embodiment of the present invention.

FIG. 9 is a configuration explanatory view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lead wire, 1a ... Inner lead, 1b ... Lead terminal, 2 ... Stem, 3 ... Auxiliary straightening machine, 3a ... Auxiliary straightening machine mounting surface, 4 ... Round hole, 5 ... Round hole jig (straightening machine) , 6 ... Flange, 7 ... Lead wire mounting portion, 8 ... Fitting portion, 9 ... Lower fixing jig (first auxiliary correction plate), 10 ... Fitting inlet, 11 ... Upper fixing jig (second auxiliary correction plate) .

Claims (7)

[Claims] 1. An auxiliary straightening machine for holding a stem to which a lead wire is attached, and a round hole into which a lead wire before straightening can be inserted are moved relative to a mounting surface of the auxiliary straightening machine. A lead wire straightening device comprising: a straightening machine that is capable of being mounted and straightened by colliding a round wire with a lead wire inserted into the round hole. 2. The lead wire straightening device according to claim 1, wherein the movement is rotational movement. 3. An auxiliary straightening machine for holding a stem to which a lead wire is attached, and a round hole into which a lead wire before being straightened can be inserted, and the auxiliary straightening tool is provided in directions orthogonal to each other in the X direction and the Y direction. Is mounted on the mounting surface of the auxiliary straightening machine so as to be displaceable relative to the machine, and the lead wire inserted into the round hole collides with the round hole to move the lead wire in the X direction and the Y direction. A lead wire straightening device having a straightening machine capable of forcibly bending and straightening in each direction. 4. The first auxiliary straightening plate, wherein the stem comprises a disc-shaped lead wire mounting portion having a flange, and the auxiliary straightening machine has a fitting portion that fits into the flange and mounts the stem.
A second auxiliary straightening plate, on which the stem is placed, is further mounted with a fitting opening into which the lead wire mounting portion can be fitted, whereby the stem can be held by the first auxiliary straightening plate. The lead wire straightening device according to claim 1, comprising an auxiliary straightening plate. 5. The lead straightening device according to claim 4, wherein the fitting portion of the first auxiliary straightening plate and the fitting inlet of the second auxiliary straightening plate each have a number corresponding to the number of stems. 6. A stem having a lead wire attached thereto is held by an auxiliary straightening machine, and subsequently, a straightening machine having a round hole on a mounting surface of the auxiliary straightening machine is provided with a lead wire before straightening the round hole. A lead wire straightening method comprising: inserting and mounting, and thereafter, rotating the straightening machine relative to a mounting surface of the auxiliary straightening machine to straighten the lead wire. 7. A stem having a lead wire attached thereto is held by an auxiliary straightening machine, and subsequently, a straightening machine having a round hole on a mounting surface of the auxiliary straightening machine is provided with a lead wire before straightening the round hole. A lead wire straightening method comprising straightening the lead wire by inserting and placing it and then sequentially displacing the straightening machine in directions perpendicular to each other in the X and Y directions.