JPH09320882A - Lead wire assembler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To insert a lead wire under pressure into a hole for holding a lead wire, even when a diameter of the lead wire is made slender. SOLUTION: This lead wire assembler device is so structured that a member 1 having a lead wire holding hole is held by holding means 11, so that a central axial line of the lead wire holding hole corresponds to a specific reference axial line 20, and these are provided a first guide 12 in which outlet sides are opposite each other at an interval at an opening end of the lead wire holding hole, so that a lead wire rod 10 is supplied from the one end to the lead wire holding hole along the reference axial line; and a chuck 13 for interposing a middle of a lead wire rod at a location at an interval on a first guide inlet side, and there is provided 9 positioning means for positioning a top end of the lead wire rod at an output end of the first guide. The lead wire rod positioned by positioning means is interposed by the chuck, also the chuck is advanced accompanied by the first guide, the first guide comes close to the opening end of the lead wire holding hole and is stopped, and after the first guide is stopper, the chuck is continuously advanced by a specific dimension. Further, there are provided a lead wire rod cutter device 16 and a pressing means 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead wire assembling device for inserting and holding one end of a lead wire in a lead wire holding hole of a component part in the manufacture of electric parts.

[0002]

2. Description of the Related Art As an electric component having a lead wire holding hole, for example, as shown in FIG.
Lead wire holding portions 2 and 2 are provided at one end of each of the lead wire holding portions 2 and 2, and the lead wire holding holes 3 and 3 parallel to the axis of the cylindrical body 1 are provided in the holding portions 2 and 2.
There are some drilled. In the lead wire holding holes 3 and 3, lead wires 4 and 4 having an appropriate outer diameter that can be inserted into the holding hole 3 are slightly crushed in the diametrical direction so that the maximum diameter is slightly increased. It is not so strong, but it is pressed in and held. After that, a winding is wound around the cylindrical body 1 to form a coil, and both ends of the coil are soldered and connected to the exposed portions of the lead wires 4 and 4 to form a coil as an electric component. Reference numerals 5 and 5 in the drawing are grooves for guiding both ends of the winding wire forming the coil to the lead wire.

Conventionally, in the process of press-fitting and holding the lead wire 4 in the lead wire holding hole 3 of such an electric component, the lead wire is grasped by a simple jig and the position of the lead wire and the lead wire holding hole is visually observed. It was done manually by adjusting and pushing.

[0004]

Since the lead wire assembling process is performed manually, the work efficiency is low,
There is a problem in that it greatly affects the cost increase of electric parts. In addition, the miniaturization of electrical components has progressed, and the diameter of the lead wire has become smaller. It is possible to manually assemble the lead wire up to 0.5 mm in diameter. The efficiency decreased, and when it became 0.3 mm or less, it became almost impossible by hand. That is, when the lead wire and the lead wire holding hole have a small diameter, the lead wire cannot be press-fitted and is easily bent unless the wire and the hole are accurately positioned relative to each other. It is an object of the present invention to provide a lead wire assembling device that can be automated and can assemble a lead wire into a lead wire holding hole even if the diameter of the lead wire is 0.3 mm or less.

[0005]

According to the means of the present invention, a member having a lead wire holding hole is held in a fixed position by a holding means such that the central axis of the lead wire holding hole coincides with a predetermined reference axis, A first guide is provided at the opening end of the lead wire holding hole so that the outlet sides face each other with a space therebetween so as to supply the lead wire material to the lead wire holding hole from one end along the reference axis and at the inlet side of the first guide. A chuck for sandwiching the lead wire rod at a position spaced apart is provided, positioning means for positioning the tip of the lead wire rod at the outlet end of the first guide is provided, and the chuck is positioned by the positioning means. The lead wire is sandwiched and is advanced together with the first guide, the first guide is stopped near the open end of the lead wire holding hole, and the first guide is pulled even after the stop. Following the chuck is characterized by being configured to be advanced a predetermined size.

According to the means of the present invention, when the chuck clamps the lead wire and advances with the first guide, and the exit end of the first guide stops near the opening end of the lead wire holding hole, The tip of the lead wire material is still located at the open end of the lead wire holding hole. When the chuck further advances by a predetermined dimension, the tip of the lead wire rod advances by a predetermined dimension along the reference axis and is press-fitted into the lead wire holding hole. The lead wire material is
It is assumed that the cross-sectional shape is flat before press-fitting, or in some cases, even if the lead wire material has a circular cross-section, the lead wire holding hole side has a press-fitting dimension or press-fitting shape. That is, the means of the present invention can be applied because the lead wire material can be pressed into the lead wire holding hole.

In the means of the present invention, a restraining means for restraining the movement of the lead wire in the longitudinal direction is provided at least while the chuck is releasing the lead wire, and the positioning means is provided with the first guide. It is preferable to use a lead wire material cutting device that causes the cutting blade to perform a cutting operation along the outlet end face of the. In the lead wire rod cutting device, the lead wire rod is temporarily moved to the first position before the chuck holds the lead wire rod and advances.
If the cutting operation is performed by slightly projecting to the exit side of the guide, the tip of the lead wire material comes to coincide with the exit end surface of the first guide, which is the same as positioning.
The positioning by cutting is performed when the tip of the lead wire rod is press-fitted into the lead wire holding hole described above, the chuck releases the lead wire rod, and the chuck and the first guide are retracted to their original positions. , The lead wire is the tip first
The lead wire is in a state of being positioned at the outlet side end of the guide and the portion press-fitted into the lead wire holding hole is cut off to form a lead wire having a predetermined length, that is, a length equal to the advance or retreat distance of the chuck. The restraint means may be something like a brake device, and restrains the movement of the lead wire rod when the chuck is retracted in the released state, so that the lead wire rod does not move and can be positioned reliably.

In the above means, instead of the restraining means, a predetermined length range in the middle of the lead wire guided by the second guide is pressed to plastically deform the lead wire into a slightly flat cross-sectional shape and the chuck releases the lead wire. It is preferable to provide a pressing means for holding the above-mentioned pressing and restraining the lead wire material from immediately before to the next clamping. The pressing means can perform the restraining action of the lead wire rod and the deforming action of plastically deforming it by one device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
This will be described with reference to FIG. In this embodiment, the tip of the lead wire material 10 is press-fitted and held in the lead wire holding hole 3 of the electric component (coil) described with reference to FIG. 9, and then cut into a predetermined length to form the lead wire 4. It is a lead wire assembly device. This device is a member (cylindrical body) having the holding hole 3.
1 holding means 11, a first guide 12, a chuck 13, an interlocking mechanism 14, a pressing means 15 also serving as a restraining means, a lead wire cutting device 16 and the like.

The holding means 11 holds the holding hole 3 of the member 1 at a fixed position so that the center line of the holding hole 3 coincides with a predetermined horizontal reference axis 20 and is provided at the right end of the table 17 in FIG. The work holder 18 is provided with two holes 21 and 21 (see FIG. 2) which are formed by aligning the center axes with the two parallel reference axes 20 which are arranged horizontally. The work holder 18 is provided so that its position can be finely adjusted in the vertical direction of FIG. 1 and in the direction perpendicular to the paper surface by screws 22, 23 and 23. As shown in FIG. 5, the holding means 11 is brought into a holding state by inserting the lead wire holding portions 2 and 2 of the member 1 into the holes 3 and 3. In this case, it is in a state of being held by an operator by a hand or a state of being supported by a support (not shown) in place of this.

The first guide 12 includes lead wire rods 10 and 10.
Guide hole 2 for guiding the workpiece along the reference axes 20 and 20.
4 and 24, the outlets of the guide holes 24 and 24 are arranged so as to face the opening ends of the holding holes 3 and 3 of the member 1 held by the holding means 11, and are attached to the guide holder 25. The respective outlets of the holes 24 have the holding holes 3, 3 respectively.
Is provided so as to be movable in a direction along the reference axis lines 20 and 20 between an advancing position close to the opening end and a retracted position separated by a predetermined distance. In FIG. 1, 26 is a guide holder 2.
5 is a slide bearing that movably supports the table 5 on the table 17 in parallel with the reference axis 20.

The chuck 13 is provided at a position where the lower claw 27 and the upper claw 28 sandwich the reference straight line 20 in the vertical direction. For example, two lead wire materials that the upper claw 28 descends and passes through the reference axes 20, 20. 10 and 10 are clamped at the same time, and the reference axis 2
It is designed to move back and forth along 0 and 20. An upper claw support portion 29 and a lower claw support portion 30 to which the upper and lower claws 28 and 27 are attached are configured as shown in FIGS. 1, 3 and 4. That is, the lower claw support portion 30 is formed in a block shape, and is supported by the horizontal guide rods 31, 31 penetrating both sides in the chuck advancing / retreating direction. The horizontal guide rod 31 has its right end in FIG. 1 assembled by press-fitting into the hole formed in the guide holder 25 of the first guide 12, and its left end connected by the lateral member 32 to form a frame shape integral with the guide holder 25. Has been formed. The upper claw support portion 29 is formed in a block shape, and the columnar guide 3 that vertically penetrates both sides with respect to the chuck advancing / retracting movement direction.
3 and 33 are vertically guided, and the columnar guides 33 and 33 are erected on the lower claw support portion 30. The upper ends of the columnar guides 33 and 33 are beam-shaped cylinder support members. 34 is connected, an air cylinder 35 for driving the claw is attached to an intermediate position of the cylinder support member 34, and a piston rod 36 extending below the air cylinder 35 is attached to the cylinder support member 3.
4 is connected to the upper claw support portion 29 with a sufficient margin. The horizontal guide rods 31, 31 and the lower claw support 3
0 between the guide rod penetrating portion and the columnar guide 33,
Slide bearings 37 and 38 are interposed between 33 and the columnar guide penetrating portion of the upper claw support portion 29, respectively, so that they can be moved extremely lightly.

The chuck 13 is in a released state when the claw driving air cylinder 35 is in a shortened state, and is extended so that the upper claw 28 extends.
Is lowered toward the lower claw 27, so that the two lead wires 10 and 10 are clamped at the same time. Further, as shown in FIGS. 1 and 3, an air cylinder 39 is provided on the table 17 as a chuck advancing / retreating drive unit so that the chuck 13 further moves forward and backward, and its piston rod 40 extends to the right and It penetrates the intermediate position of the member 32 with a margin and is connected to the lower claw support 30. When the air cylinder 39 expands and contracts, the lower claw support portion 30 and the upper claw support portion 29 move forward and backward, so that the chuck 13 moves forward and backward. An interlocking mechanism 14 is provided so that the first guide 12 interlocks with the forward / backward movement of the chuck 13.

The interlocking mechanism 14 is, as shown in FIGS. 1 and 3, specifically, a lower claw support portion 30 and a guide holder 25.
Between them are coil springs 41, 41 provided in a slightly compressed state so as to be fitted to the horizontal guide rods 31, 31, respectively. When the air cylinder 39 extends from the shortened state shown in the drawing, the lower claw support portion 30 advances, and this forward acting force is transmitted to the guide holder 25 via the coil springs 41, 41, and the lower claw support portion 30 and the guide holder. 25 maintains the initial positional relationship and moves forward together with the guide holder 25.
The forward movement of the guide holder 25 is restricted by coming into contact with the work holder 18, and stops at that position. At this time, the chuck 13 is further advanced by a predetermined distance, and the forward movement causes the coil springs 41, 41 to be compressed,
The chuck 13 stops at a predetermined distance. Chuck 13
The distance by which the coil springs 41, 41 are moved forward while being compressed is the dimension for press-fitting the tip of the lead wire rod 10 into the lead wire holding hole. When the air cylinder 39 is shortened, the lower claw support portion 3 is moved by the distance advanced while compressing the coil spring.
0 moves backward, and then moves backward together with the guide holder 25.

The second guide 42 moves the long lead wire rod 10 pulled out from a stock reel provided in a portion (not shown) continuing to the left of FIG. 1 to the chuck 13 position along the reference axes 20, 20. It is a guide and is made of a pipe. Reference numeral 43 is a pipe support portion of the guide. In the middle of the second guide 42, the pressing means 1 also serving as a restraining means for restraining the movement of the lead wire rod 10 in the longitudinal direction.
5 is provided.

The pressing means 15 also serving as a restraining means is composed of a flat pedestal 44, a punch 45 having a flat pressing surface, and a driving portion 46 supporting the punch, and the driving portion 46 is an air cylinder 47. , And a lever device in which the lever member 48 is supported by a fulcrum shaft 49. This is because the booster reduces the size of the air cylinder 47. Cradle 44 and punch 4
The reference numeral 5 is adapted to simultaneously press the lead wire members 10 and 10 guided by the second guide 42 along the two reference axis lines 20 to plastically deform the cross-sectional shape into a predetermined flat shape. This pressing operation is performed once while the chuck 13 advances and retreats once and then advances and retracts. The length of the lead wire rod deformed by this pressing operation is 1 when the chuck 13 holds the lead wire rod. It is made slightly longer than the length of forward movement, so that the lead wires are flattened and supplied over the entire length by successive pressing. The restrained state is obtained by maintaining the pressing force as it is, but the lead wire is cut while the chuck 13 is holding the lead wire 10 and moving forward, so the pressing is released. The state shown in FIG. 1 is a pressed state in which the air cylinder 47 is expanding, and in this state the lead wires 10 and 10 are flat and restrained.

The lead wire cutting device 16 is provided so that the cutting blade 51 reciprocates along the outlet side end face 50 of the first guide 12. The cutting blade 51 is provided above the guide holder 25 so as to be able to move up and down along a shaft 52,
A spring 53 for returning to ascend is interposed, and the descending drive is performed by a drive unit 54 provided so as to be able to drive when the guide holder 25 is in the retracted position. The drive unit 54 is
Air cylinder 55 provided on the table 17 and the table 1
7, a fulcrum portion 56, and a lever 58 supported by the fulcrum portion, one end of which is driven by the air cylinder 55 and the other end of which moves the adjusting screw 57 to drive the cutting blade 51 downward. The cutting device 16 is operated after the chuck 13 clamps the lead wire material, advances, releases, and retracts.

The lead wire assembling apparatus thus constructed operates in the following order by sequence control.
In the initial state, as shown in FIG. 5, the first guide 12 is at the retracted position away from the member holding means 11 side, and the chuck 1
3 is in the released position at the retracted position, and the tip of the lead wire rod 10 is located at the outlet end of the first guide 12.
The lead wire 10 is in a state in which the tip end side of the pressing means 15 is processed into a predetermined flat shape by the pressing of the pressing means 15 in advance and the pressing is continued. From this initial state, the member 1 having the lead wire holding hole 3 is brought into the holding state by the member holding means 11 to start the operation. The outline of one-time assembling operation is as follows:
Releases the pressure, then the chuck 13 advances, the pressing means 15 performs the pressing operation, the chuck 13 is released and retracts, and then the lead wire cutting device 16 ends the cutting operation.

Specifically, first, the chuck 13 clamps the lead wire 10 by the expanding operation of the air cylinder 35, then the pressing means 15 releases the pressing by the shortening operation of the air cylinder 47, and the chuck 13 moves the air cylinder. When the lead wire rod 10 is pulled out when it is advanced by the extension operation of 39, the first guide 12 causes the spring 41 of the interlocking mechanism 14 to move.
Is pushed through to reach the forward position. As a result, as shown in FIG. 6, the tip of the lead wire rod 10 comes to a position close to the opening of the lead wire holding hole 3 of the member 1 on the same axis (on the reference axis 20). Subsequently, the chuck 13 advances by the extension operation of the air cylinder 39, reaches a predetermined distance, and stops (see FIG. 7). The advance of the chuck 13 after the first guide 12 reaches the advance position is an advance against the spring 41, and the lead wire 10 sandwiched by the chuck 13 also advances further due to this advance, so that the tip of the lead wire 10 is It is pressed into the lead wire holding hole 3.

After the chuck 13 stops advancing, the press-fitting means 15 also functioning as a restraining means performs a pressing operation by the extension operation of the cylinder 47 to perform processing for flattening the lead wire 10 and continue pressing as it is. This pressed state is a restrained state, and the lead wire 10 is prevented from retracting when the chuck 13 retracts. Following this pressing, the chuck 13 releases the lead wire material 10 by the shortening operation of the air cylinder 35, and then retracts to the original position by the shortening operation of the air cylinder 39, and the first guide 12 is also moved to the original position by the interlocking mechanism 14. Return to the retracted position (see FIG. 8). Next, the cutting blade 51 of the cutting device 16 performs the cutting operation along the outlet end face 50 of the first guide by the operation of expanding and shortening the air cylinder 55, and immediately returns to the original state by the action of the spring 53. By this cutting, the tip of the lead wire rod 10 is moved to the first guide 12
Is positioned at the outlet end of the lead wire and the lead wire holding hole 3 is in a lead wire assembled state in which the lead wire 4 having a predetermined length is press-fitted and held. The length of the lead wire 4 is the distance during which the chuck 13 moves forward and backward, and the distance that the chuck 13 advances after the first guide 12 stops at the forward position is the press-fitting dimension with respect to the lead wire holding hole 3. Since this completes the one-time assembling operation, when the member 1 is replaced with a member having no lead wire attached, the state shown in FIG. 5 is obtained.

Although the work feeder has not been described in the above embodiment, it is preferable that the member 1 is automatically attached to and detached from the work holder 18. However, in some cases, an operator manually attaches the member 1 to the work holder 18
Alternatively, the start button may be pressed by the foot switch to perform one assembling operation.
The worker will attach and detach the member and operate the foot switch every time, but since the lead wire rod 10 is supplied with the lead wire holding hole 3 of the member 1 and the center line of the first guide 12 always aligned, The lead wire 10 can be reliably assembled regardless of the thickness thereof.

[0022]

EXAMPLE In the above embodiment, the diameter of the lead wire 10 before being flattened is 0.3 mm, the maximum outer diameter after being flattened is 0.4 mm, and the total advance distance of the chuck 13 is 5 m.
In m, the advance distance of the chuck 13 to the stop of the first guide 12 is 4 mm, and the advance distance of the chuck 13 after the stop of the first guide 12 is 1 mm. Further, the length flattened by one pressing by the pressing means 15 is 5.5 mm.

[0023]

According to the invention described in claim 1, since the lead wire holding hole and the tip end portion of the lead wire material are mechanically aligned and axially moved to press fit, the diameter of the lead wire is Even if it becomes thin, it can be press-fitted and can be automated,
Moreover, there is an effect that the press-fitting work speed hardly changes depending on the diameter of the lead wire. The invention according to claim 2 is
Since the cutting device serves both cutting and positioning, it has an effect of simplifying the device. According to the invention described in claim 3, since the pressing means performs the constraining action and the plastic deformation action of the lead wire material, there is an effect of simplifying the device.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a schematic right side view of the same embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a partially enlarged vertical front view for explaining the operation of the same embodiment.

FIG. 6 is a partially enlarged vertical front view for explaining the operation of the same embodiment.

FIG. 7 is a partially enlarged vertical front view for explaining the operation of the same embodiment.

FIG. 8 is a partially enlarged vertical front view for explaining the operation of the same embodiment.

FIG. 9 shows an example of an electric component having a lead wire holding hole, (a) is an enlarged front view, (b) is an enlarged left side view,
(C) is an enlarged plan view.

[Explanation of symbols]

 1 member 2 lead wire holding part 3 lead wire holding hole 4 lead wire 10 lead wire material 11 holding means 12 first guide 13 chuck 14 interlocking mechanism 15 pressing means 16 cutting device 17 table 18 work holder 20 reference axis 24 guide hole 27 lower claw 28 Upper Claw 29 Upper Claw Support 30 Lower Claw Support 31 Horizontal Guide Rod 33 Columnar Guide 41 Spring 42 Second Guide

Claims (3)

[Claims] 1. A member having a lead wire holding hole is held by a holding means at a fixed position such that a central axis of the lead wire holding hole coincides with a predetermined reference axis, and the lead wire is held along the reference axis. A first guide is provided at the open end of the lead wire holding hole so that the outlet side opposes the hole at a distance so as to supply the lead wire material from one end to the hole. A chuck for sandwiching the middle of the lead wire is provided, and positioning means for positioning the tip of the lead wire at the outlet end of the first guide is provided, and the chuck holds the lead wire positioned by the positioning means and the first guide. Forward with
The lead wire assembling apparatus, wherein the first guide is stopped in the vicinity of an opening end of the lead wire holding hole, and the chuck is continuously advanced by a predetermined dimension even after the first guide is stopped. 2. The lead wire assembling apparatus according to claim 1, further comprising restraint means restraining movement of the lead wire rod in a longitudinal direction at least during a period in which the chuck releases the lead wire rod, The positioning means is the first
A lead wire assembling device, which is a lead wire cutting device that causes a cutting blade to perform a cutting operation along an outlet end face of a guide. 3. The lead wire assembling apparatus according to claim 2, wherein instead of the restraint means, a predetermined length range in the middle of the lead wire guided by the second guide is pressed to form a slightly flat cross-sectional shape. 2. A lead wire assembling apparatus, comprising: a pressing unit that plastically deforms and keeps the pressing force from immediately before the chuck releases the lead wire member to the time when the chuck clamps the lead wire member.