JPH05234659A - Method of automatically fitting wire with terminals in connector housing and manufacturing device for wire harness - Google Patents

Abstract

PURPOSE:To make the work to produce a wire with terminals not necessarily depend on the inserting order of the terminals, to omit a large installation space for the device, and to insert the terminals at both ends of a wire to connector housings at both sides at the same time and quickly. CONSTITUTION:On both sides of the first wire conveying device 42 to grasp both ends of a wire W1 cut in a specific length, and to convey in order, cover peeling devices 7A and 7B of wire, and terminal crimp devices 8A and 8B are provided, and a wire W2 with terminals to which terminals 9A and 9B are crimped at both ends by terminal transfer hands 45A and 45B provided movable at both sides of one end of the second wire conveying device 43 is converted and lined up according to the inserting order of the terminals of both ends in order, to the device 43. On both sides of the other end of the device 43, connector housings 46A and 47A, and 46B and 47B are provided, and at the same time, the wire W2 with terminals is inserted in the terminal housing chambers of the connector housings in the order of converting and lining up by terminal inserting hands 48A and 48B provided movable along the device 43.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for easily and quickly inserting terminals crimped on both ends of an electric wire into a connector housing in manufacturing a wire harness, and a wire harness for carrying out the method. Regarding the device.

[0002]

2. Description of the Related Art Generally, a wire harness is constructed by leading a plurality of branch lines having a connector attached to a terminal to a main line portion formed by bundling a large number of electric wires, and a manufacturing method and apparatus thereof are shown in FIG. The following are known (Japanese Patent Laid-Open Nos. 61-104578 and 1-313872).
No. 2, Japanese Patent Publication No. 2-15994).

In the figure, the electric wire W supplied to the base 1A
After the bending is corrected by the straightening roll 2, the length is measured by the measuring roll 3 to a predetermined length, and the length measuring wire is cut by the cutter 4 into the short length wire W ₁ . Both ends of the electric wire W ₁ are gripped by the clamps 6A and 6B of the pair of transport clamp chains 5A and 5B provided between the bases 1A and 1B, and are intermittently transferred by one pitch in the direction of the arrow in the drawing to remove the peeling device. 7
The insulation coating on the ends of the electric wires is stripped off by A and 7B, and the terminals 9A and 9B are crimped and crimped onto the electric conductors by the terminal crimping devices 8A and 8B. Next, the terminals 9A and 9B at both ends of the terminal-attached electric wire W ₂ are once pulled back in the arrow direction by the terminal pulling-back devices 10A and 10B, and then inserted into the insertion devices 11A and 11B.
B is released from the clamps 6A, 6B by B and is inserted and locked in the terminal accommodating chamber 14 (see FIG. 15) of each connector housing 13A, 13B held in the housing holders 12A, 12B.

FIGS. 12A and 12B show a conventional clamp 6
A (6B) is shown. This is the transport clamp chain 5A
It is made of metal (iron) in the same way as
The proximal ends of the pair of grippers 16 and 16 'are respectively pin 17
In addition to being pivotally connected via the bases, tooth portions 17a that mesh with each other are provided on the outer periphery of each base end portion, and a compression coil spring 18 is interposed between the outer periphery of both base end portions and the substrate shoulder portion. The pair of grippers 16, 16 'are pressed inward by the elastic force of the spring 18 and closed, and the one of the locking pins 19, 19 of the compression coil spring 18 is pressed outward by the rise of the cam 20 and the grippers are held. It has a structure in which 16 and 16 'are opened.

However, in the above clamp, not only the opening / closing mechanism of the gripping device itself and the external opening / closing mechanism are costly, but also
Since the device is made of iron, the weight is increased, it is difficult to mount and replace the device, a large amount of power is required for driving, and the mounting pitch is large because the clamps are connected by a chain. In addition to this, there are many problems such as slack in the chain and noise during driving.

Therefore, instead of the clamp, as shown in FIGS. 13 and 14, a pair of sandwiching members 21 facing each other.
a, 21a, and the ridge 21 is provided at the center of one of the facing surfaces.
b, it is also conceivable to use the electric wire clip 21 made of synthetic resin, in which the concave groove 21c is provided on the other side (or the protrusions 21b on both ends). However, in this case, since the clamp 21a is made of synthetic resin, it is difficult to provide appropriate rigidity and flexible elasticity at the same time, and the wire W clamped between the pair of clamps 21a, 21a is difficult. The applicable size (electric wire diameter) is limited.

FIG. 15 shows a connector housing 1 having terminals 9A and 9B at both ends of the electric wire with terminal W ₂ (W ₂ ′) processed in FIG.
The mutual relationship with 3A and 13B is shown. Here, the wire W ₂ group with terminals on the upper side is arranged in parallel, and the terminals 9A ₁ and 9A at both ends are connected.
_{, 2} and 9B ₁ , 9B ₂ , ... are sequentially inserted symmetrically into the terminal accommodating chambers 14 ₁ , 14 ₂ ... from one end side of the upper stage of each housing, the transfer clamp chains 5A, 5B in FIG. It is possible to insert and attach the terminals at the same time as the intermittent movement of 1 pitch.

However, in practice, like the electric wire with terminal indicated by the reference numeral W ₂ ′, the terminals 9A ′ and 9B ′ at both ends intersecting with the group of electric wire W ₂ with terminals have, for example, the lower terminal accommodating chamber 14 ₆ ′.
And 14 ₁ ′ are often inserted in a left-right or asymmetric manner. In such a case, the electric wire in which the terminal has been inserted interferes with the terminal to be inserted next, which causes a problem that the terminal cannot be smoothly inserted into the connector housing. The other problem is that the terminals 9 at both ends of the lower wire W ₂ ′ group with terminals are connected.
The A'group and 9B 'group have terminals 9A ₁ , 9A ₂ , ...
, And 9B ₁ , 9B ₂ , ... And upside down as shown in the figure.

In order to smoothly insert the terminals, Japanese Unexamined Patent Publication No. Sho 61-61
The following method is proposed in Japanese Patent Laid-Open No. 104578. In FIG. 16, a group of electric wires W ₂ whose terminals 9A and 9B are crimped at both ends are aligned in parallel at a required interval, and are sequentially and continuously delivered by a conveyor chain 24. Therefore, the terminal is inserted into the connector (housing) in the next step. 1) The electric wire W ₂ with a terminal is clamped by the clamping claw 25, and the A side (terminal 9AW of the electric wire W ₂ ) is conveyed to the position a, and similarly the B side is conveyed to the position b. 2) The B-side terminal-attached electric wire W ₂ is removed from the holding claw 25 at the position b by the inserting device 26 and inserted into the connector housing 13B. 3) The A-side terminal-equipped electric wire W ₂ is transferred to an arbitrary position on the track 28 by the transfer head 29, and this transfer position is the insertion order of the terminal 9A into the connector housing 13A. 4) Transfer of the electric wire on the A side and insertion of the terminal into the housing on the B side are performed at the same time.
The side track 28 moves from the position d to the position e, and the B side connector housing 13B is discharged. 5) Clamp claw 2 of the truck 28 that has moved to the position e
The wire W ₂ is removed from 5 ′ by the insertion device 26, and the terminal 9A is inserted into the connector housing 13A. 6) After inserting the terminals, the A-side connector housing 13A is ejected. In FIG. 16, 30A and 30B are housing holders,
Reference numeral 31 indicates a parts feeder, and P _A and P _B indicate terminal insertion positions in each housing.

However, in the above terminal insertion method, since the B-side sandwiching claw 25 cannot be conveyed until the insertion into the connector housing 13B is completed, the tact of the wire cutting and crimping process portion affects the insertion portion. In addition, there is a restriction that the arrangement order of the electric wires on the B side of the conveyor chain 24 always matches the insertion order of the electric wires in the connector housing 13B, and further, the connector housing 13B is dragged when the A side track 28 is conveyed. Remains the problem.

[0011] 'inverted terminal 9A of the group' wire W ₂ with the lower side terminal in FIG. 15, not One for insertion into the connector housing 9B 'is to rotatable housing holding member relative to the horizontal axis There is known a method of vertically inverting it (Japanese Patent Publication No. 2-15994). However, in this case, a housing holding member must be prepared for each shape and size of the connector housing, which lacks versatility.

FIG. 17 shows a transfer clamp chain 5A instead of the clamp 6A shown in FIG. 11 as a transfer means for the cut electric wire and the electric wire with terminal, and a clip 21 having the structure shown in FIGS. Are provided at a predetermined pitch P. Reference numeral 33 is a terminal insertion device. However, the pitch P of the clip 21 depends on the peeling device 7
A, the terminal crimping device 8A (see FIG. 11) and the like are regulated by the installation position of the terminal processing device for the electric wire, and it is unavoidable that the device be sufficiently wide. Therefore, as shown in FIG. 16, even if the terminal 9A group on one side of the terminal-equipped electric wire W ₂ group is transferred so that the terminal can be smoothly inserted, it is sandwiched at the same pitch P as the terminal processing step of the electric wire. Then, the moving distance of the insertion device 33 becomes long, and it takes time correspondingly, and a large space is required for installing the device.

[0013]

In view of the above problems, the present invention does not necessarily require the production of an electric wire with a terminal in the order of inserting the terminals, does not require a large space for installing the manufacturing apparatus, and An object of the present invention is to provide a method and a wire harness manufacturing apparatus capable of simultaneously and quickly inserting terminals at both ends of an attached electric wire into a connector housing.

[0014]

In order to achieve the above object, the method for automatically inserting an electric wire with a terminal into a connector housing according to the present invention is characterized in that both ends of each electric wire are constant. The electric wire group which is gripped at the pitch P and which is crimped with terminals at both ends to be transferred in sequence is converted and arranged in accordance with the order of inserting the terminals on both sides into the connector housing, and then both sides of the converted and arranged electric wire group are arranged. It is characterized in that the terminals are successively and successively attached to the respective connector housings arranged in the above. In the permutation transfer of electric wires, as described in claim 2, both ends of each electric wire are gripped at a constant pitch P,
Further, when converting and arranging an electric wire group which is crimped with terminals at both ends and is transferred in sequence according to the order of inserting the terminals on both sides into the connector housing, both ends of each electric wire are gripped with P ′ narrower than the pitch P. Preferably. In addition, claim 3
As described in, the electric wire group in which both ends of each electric wire are gripped at a constant pitch P, and terminals are crimped to both ends to be transferred in series is converted according to the order of inserting the terminals on both sides into the connector housing. In doing so, it is also effective to narrow the gap between the grips at both ends of each electric wire.

Further, the wire harness manufacturing apparatus of the present invention is, as described in claim 4, a first electric wire conveying apparatus for grasping both ends of an electric wire cut to a predetermined length and sequentially conveying the electric wires. On both sides, an electric wire stripping device and a terminal crimping device are arranged, an electric wire terminal processing station, a second electric wire conveying device is arranged in the electric wire feeding direction of the first electric wire conveying device, and the first electric wire conveying device is arranged. Terminal transfer means is provided so as to be movable from the electric wire transfer device to one side of the second electric wire transfer device, and the terminal-attached electric wires whose terminals are crimped at both ends in the terminal processing station are sequentially connected to the terminals on both sides by the terminal transfer means. An electric wire placement station for converting and arranging into the second electric wire carrier according to the order of insertion into the connector housing, and a connector housing are arranged on both sides of the other side of the second electric wire carrier. Both are provided with a terminal insertion means movable along the second electric wire carrier, and a terminal insertion station for inserting the conversion-arranged electric wires with terminals into the terminal accommodating chamber of the connector housing by the terminal insertion means. It is characterized by

[0016]

According to the present invention, the electric wire group which is crimped with terminals at both ends and is transferred in series is converted and arranged according to the order in which the terminals on both sides are once inserted into the connector housing. Simultaneous insertion is possible. Therefore, unlike the conventional method of inserting and inserting the terminals on each side, the waiting time is eliminated, and the end processing of the electric wire and the insertion of the terminals can be continuously performed (claim 1). Also,
As claimed in claim 2, by narrowing the gripping pitch of the end portions of the adjacent electric wires in the conversion arrangement of the electric wire group with terminals, it is possible to reduce the size of the device required for conveying the electric wires and to insert the terminals. The time required can be shortened. Furthermore, as described in claim 3, since a slack is generated in the center of the electric wire by narrowing the interval between the gripping portions at both ends of each electric wire in the conversion arrangement, cross conversion of the electric wires to be permuted is converted. The arrangement can be facilitated, and unnecessary pulling force can be prevented from being applied to the electric wires when the terminals are inserted into the connector housing.

The above-mentioned operation according to the method of the present invention is described in claim 4.
As in the manufacturing apparatus described in (1), a device that grips and conveys both ends of an electric wire is arranged separately for the first and second electric wire conveying devices,
A wire end treatment station is provided on both sides of the first electric wire carrier, and a wire placement station and a terminal insertion station are provided on both sides of the second electric wire carrier, so that the electric wire with the terminal processed by the terminal treatment station is processed. This is achieved by enabling conversion arrangement according to the order of inserting terminals into the connector housing at the mounting station.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic insertion of terminals into a connector housing (hereinafter referred to as terminal insertion) and a wire harness manufacturing apparatus according to the present invention will be described below with reference to the drawings.
The same reference numerals are used for the same components as in the conventional example,
Detailed description is omitted.

FIG. 1 is a schematic plan view showing a wire harness manufacturing apparatus for carrying out the present invention. In the figure,
Base 41A and 41B opposing each one end terminal processing station S ₁ of the wire, intermediate wire loading station S _2, the other end is partitioned as a terminal inserting station S _3, the station S ₁ first The electric wire conveying device 42 of FIG. 2 is provided with the second electric wire conveying device 43 at the stations S ₂ and S ₃ .

The base 41B is formed to be slightly longer than the base 41A, and the electric wire W supplied to that portion (on the left end side in the drawing).
In the same manner as in the case of FIG. 11, after passing through the straightening roll 2 and the measuring roll 3, the electric wire cutter 4 cuts the electric wire W ₁ of a desired length. Both ends of the electric wire W ₁ are gripped by the first electric wire transport device 42 in a parallel state at a predetermined pitch P, and are intermittently transferred by one pitch in the direction of the arrow in the drawing. The wire W ₁ is stripped and crimped by the stripping devices 7A, 7B and the terminal crimping devices 8A, 8B at the terminal processing station S ₁ , and the terminal 9A is crimped at one end and the terminal 9B is crimped at the other end. The attached electric wire W ₂ is made. In addition, a plurality of electric wire supply nozzles (not shown) are arranged immediately before the straightening roll 2, and the electric wire size is the same and the color of the insulation coating is different due to the replacement and selection of the nozzles. Different types of electric wires such as size electric wires can be supplied and cut. Further, 8A 'and 8B' are terminal crimping devices 8A,
8B is a terminal crimping device for crimping terminals of different standards, and terminals of different standards can be continuously crimped by installing a plurality of terminals as necessary.

The group of electric wires W ₂ with terminals processed in the terminal processing station S ₁ is processed by the terminal transfer hands 45A and 45B, which are terminal transfer means, in the order of processing of the second electric wire transfer device 43 in the electric wire transfer station S ₂ . It is transferred to the left side of the figure. In the arrangement of the transferred electric wires with terminals W ₂ group, the terminals 9A and 9B at both ends of each electric wire are in the housing 46.
They are arranged according to the insertion order of A, 47A and 46B, 47B. As a result, in the arrangement of the electric wire W ₂ group with terminals,
Parallel electric wire groups and electric wire groups intersecting with each other are generated. Further, the second electric wire transporting device 43 has the arrangement pitch P'of the clips 51 'for gripping both ends of the electric wire as will be described later.
Are arranged densely and are smaller than the pitch P in the first electric wire conveying device 42, and the distance D'between the timing belts 50A 'and 50B' supporting the clip 51 'is determined by the device 42.
It is made narrower than the interval D in.

Terminals 9 on both ends of the transferred electric wire with terminal W ₂
The groups A and 9B are, in the terminal insertion station S ₃ , sequentially from the right end side in the drawing, the terminal insertion hand 4 which is terminal insertion means.
8A and 48B insert into the housing 46A or 47A and the housing 46B or 47B. Base 41A
And 41B on the front side of the housings 46A and 46B (between the wire placing station S ₂ and the terminal inserting station S _{3 in the} illustrated example), terminal reversing devices 49A and 49B.
Are arranged. Here, as shown in FIG. 15, when either of the terminals 9A and 9B needs to be inserted into the housing in the upside-down direction, the abdomen and the back are turned upside down, and then the terminals are inserted. ..

The first electric wire carrier 42 comprises a pair of endless timing belts 50A and 50B facing each other and a plurality of clips 51 arranged side by side at a predetermined P on each belt.
As shown in FIGS. 2 to 4, the clip 51 pivotally attaches the base end portions of a pair of sandwiching members 52, 52 ′ made of synthetic resin to a square tube-shaped holder 54 by pin shafts 53.
A leaf spring 5 having a U-shaped or C-shaped cross-section that urges the clamps 52, 52 'inwardly so as to wrap them around each other.
5 is attached and formed. The clamps 52, 52 'each have a curved portion 52a at an intermediate portion of the facing surface thereof, a ridge 52b at the center of one of the facing surfaces, and a ridge 5 at both sides of the other surface.
2c and 52c. The ridges 52b and 52c are the clamp 5
The curved portions 52a are provided orthogonal to each other along the rising direction of 2, 52 '. Profiles 56 are erected on the outer surface of the timing belt 50A at a constant pitch P via spacers 57, and the clips 5 are attached to the profile 56.
The holder 54 of No. 1 is externally inserted, and the pin insertion holes 5 provided in both
6a and 54a are passed through the stop pin 58 to
By fitting E-rings 59 on both ends of
The clip 51 is detachably attached.

In FIG. 3, 44A (44B) is the electric current.
Electric wire W cut by the wire cutter 4 ₁Clip both ends of
A terminal insertion blade for holding the terminal 51 between
It is installed on the vertical line of the lip 51 so that it can move up and down.
A terminal insertion plate 44a is formed at the center of the lower end of the
Electric wire pressing grooves 44b are formed on the lower end surfaces on both sides of the plate 44a.
It is set up.

The fixing of the electric wire by the clip 51 is performed as follows. That is, the electric wire W ₁ cut by the electric wire cutter 4 is supplied to the vertical line of the clip 51 on both timing belts 50A and 50B by an electric wire transfer device (not shown). Then, the terminal insertion blade 44
A, 44B are lowered respectively, terminal insertion plate 44a while positioning the wire W ₁ by the wire holding groove 44b is pushed between the pair of Kyojiko 52, 52 '. Then, when a predetermined pushing depth is reached, the terminal insertion blades 44A, 4A
4B rises and separates from the clip 51. This allows
The electric wire W ₁ is clamped and fixed by the elasticity of the protrusions 52 b and 52 c of the clamps 52 and 52 ′ or the leaf spring 55 that biases the protrusions 52 b and 52 c.

FIG. 5A shows a small-diameter electric wire, for example, a diameter of 1.1 m.
m of the insulation-coated electric wire W ₁₁ , (B) shows a state in which a large-diameter electric wire, for example, an insulation-coated electric wire W ₃₀ having a diameter of 3.0 mm is sandwiched, and the state (A) is mainly due to the protrusions 52 b and 52 c.
The state (B) is a state of being sandwiched mainly by the elasticity of the leaf spring 55.

A straight line L in FIG. 6 (A) shows a general holding characteristic by only the spring. Since the gripping force increases in proportion to the wire diameter, the gripping force is weak and unstable with thin wires, and the gripping force is strong and stable with large diameter wires, but a large force is required to insert and remove the wire. There is. FIG. 6B shows FIG.
3 and FIG. 14 show the sandwiching characteristics by the conventional clip 21, and since the pair of sandwichers 21a, 21a have a fixed structure, the applicable wire diameter is limited. That is, when the diameter of the wire increases and the opening between the clamps 21a, 21a increases, the gripping force (curve m ₁ ) by the protrusions 21b, 21c decreases. On the other hand, Kyojiko 21a, because the gripping force by the elastic restoring force of 21a itself increases as a straight line m _2, the entire gripping force of the clip 21 is shown by the curve M obtained by combining the curves m ₁ and the line m ₂ If the wire diameter (opening) exceeds a certain value, the clamps 21a, 21a may be damaged, so that the applicable range of the wire is limited as described above. FIG. 6C shows
It shows the holding characteristic of the clip 51.
Since the clamps 52, 52 ′ having 52 c are rotatable and supported by the leaf spring 55, the overall gripping force is
It is shown by a curve N that is a combination of the gripping force of the b and 52c (curve n ₁ ) and the gripping force of the leaf spring 55 (straight line n ₂ ). The gripping force tends to gradually increase with the diameter of the electric wire, but is stable in a wider range as compared with FIGS. 6A and 6B.

As described above, the first electric wire carrier 42 is
By adopting the clip 51 made of synthetic resin, it is possible to eliminate the mechanical opening / closing mechanism in the conventional clamp chain and reduce the weight. Further, the miniaturized clip 51, which is an electric wire gripping member, can reduce the mounting pitch of the clip 51. Therefore, when the belt is mounted on the automatic machine,
The cycle feed amount can be shortened and the automatic machine itself can be downsized. Further, since the timing belt 50A is used in place of the metal chain, there is little trouble such as slack, rattling, and noise as in the conventional case, and the profile 56 is provided in advance to mount the clamp 51, It can be easily replaced.

As shown in FIGS. 7 and 8, the second electric wire carrier 43 includes a pair of endless timing belts 50.
A ', 50B' and a plurality of clips 5 arranged side by side on each belt
1'group and has the same basic configuration as the first electric wire carrier 42, but differs in the following points. 1) The length of the pair of timing belts 50A ', 50B' is longer than the timing belts 50A, 50B corresponding to the electric wire placing station S ₂ and the terminal inserting station S ₃ , and the timing belts 50A ', 50B'. An interval D'between them is formed narrower than an interval D between the timing belts 50A and 50B. 2) The arrangement pitch P'of the clips 51 'is narrower and denser than the arrangement pitch P of the clips 51 in the first electric wire carrier 42. That is, in the wire end processing station S ₁ , the pitch P is restricted by the installation intervals of the end processing machines such as the stripping device 7A and the terminal crimping device 8A, but the wire mounting station S ₂ and the terminal insertion station S ₃
Then, without such a restriction, the pitches P ′ are arranged side by side as closely as possible within a range that does not hinder the operation of the terminal transfer hands 45A and 45B. The structure of the clip 51 'and the timing belts 50A' and 50B 'is the same as that of the clip 5 described above.
1 and the timing belts 50A and 50B.

As shown in FIGS. 7 and 8, the group of wires W ₂ with terminals transferred in sequence by the second terminal transfer device 42 is in the transfer order, that is, from the left end side in the drawing to the terminal transfer hand 4.
5A and 45B transfer to the terminal transfer device 43 in the electric wire mounting station S ₂ . Wire with terminal W here
The arrangement of the _second group is converted and arranged according to the order of insertion of the terminals 9A and 9B on both sides of each electric wire into the connector housings 46A and 47A and 46B and 47B. For example, between the terminal processing station S ₁ and the wire placing station S ₂ ,
The electric wires of, and the electric wires of ... are in the same order, but the electric wires of, and are in a state of intersecting each other. In the illustrated example, the arrangement of the terminal 9B group on the B side is the same at stations S ₁ and S ₂ 9B ₁ , 9B ₂ , 9
B _3, is a ... order, the ... 9A ₃ sequences station S ₁ of the terminal A groups A _{side, 9A 4, 9A 5, 9A} 6 ... from the station _{S 2 ... 9A 6, 9A 4} , 9A 3 , 9A ₅
Has changed to ... Simultaneously with the conversion arrangement of the group of electric wires W ₂ with terminals, the space D'between the timing belts 50A 'and 50B' is narrower than the space D at the terminal processing station S ₁ after the wire mounting station S _2. Therefore, the electric wires of, and the electric wire group in the parallel state have a slack R at the middle portion, and the electric wires of the crossed electric wires have a sufficient grip margin by the clips 51 'at both ends.

In this way, the wire mounting station S
₂ conversion sequence electric wires W ₂ groups with terminal (,, ...)
At the terminal insertion station S ₃ in the same order as the terminals 9A and 9B on both sides,
Connector housings 46A, 4 sequentially by A, 48B
7A, 46B, and 47B may be inserted, and the terminals and electric wires are not entangled, and the operation can be performed smoothly.

As shown in FIG. 9, the terminal reversing device 49A (49B) includes an auxiliary clamp 64 for fixing the rear portion of the wire with terminal W ₂ clamped and fixed to the clip 51 ', and a terminal 9A ( Or 9B) and a pair of upper and lower electric wire chuck claws 65 and 6 for fixing the portion between the clip 51 '.
5 and a chuck pawl opening / closing mechanism 66 for rotating and opening / closing the electric wire chuck pawl about the electric wire shaft.

In FIG. 9, 61 is a substrate of the device,
A stand 62 is erected on one side of the substrate 61, and a frame 63 is projectingly provided on the upper end thereof. At the tip of the frame 63, the auxiliary clamp 64 including a pair of openable / closable clamp claws 64a, 64a is provided so as to be vertically movable.

The chuck claw opening / closing mechanism 66 includes a cylinder 6
9, a table guide 70, a rotary table 71 and the like. That is, a cylinder 69 is rotatably provided on the outside of the upper portion of the stand 62, a table guide 70 is provided on the inside of the stand 62 integrally with the cylinder 69, and a rotary table 71 is provided on the table guide so as to be movable laterally. is there.
The table guide 70 has a guide rod 70a for the rotary table 71 at the top and bottom, and has an opening / closing regulation plate 70b with an elongated hole 70c in the center, and the cylinder 69 has
It is connected to a stepping motor 67 fixed to one side of the substrate 61 via a timing belt 68.

On the other hand, a pair of electric wire chuck claws 65, 65
Has a concavo-convex portion 65a for holding an electric wire on its opposite surface, and an arm portion 65b thereof is pivotally attached to one end of an I-shaped link 73 and an L-shaped link 74b, and the other end of the I-shaped link 73 and the L-shaped link 74. The middle portions are pivotally attached to ear plates 71a provided at both upper and lower ends of the rotary table 71, and these constitute a parallelogram link so that the pair of wire chuck claws 65, 65 can be opened and closed substantially vertically. There is. The other ends of the pair of upper and lower L-shaped links 74, 74 are pivotally attached to a pin 75 loosely fitted in the elongated hole 70c.

Next, the method of inverting the terminals will be described.
First, as shown in FIGS. 9 and 10A, the electric wire W ₂
With the clip 51 'held, the auxiliary clamp 64
To center the wire. Then, the rotary table 71 pushed by the piston rod 69a of the cylinder 69 is moved along the guide rod 70a of the table guide 70 by the arrow Q.
Move in the direction. Then, the fulcrum (pin 75) moves in the elongated hole 70c of the opening / closing restriction plate 70b and hits the hole end which is a stopper. As a result, the links 73 and 74 move in parallel, and the pair of chuck claws 65 and 65 are closed. In this state, the operation of the stepping motor 67 causes the chuck pawl opening / closing mechanism 66 as a whole to rotate together with the cylinder 69 via the timing belt 68. Then, after the terminal 9B is reversed, the chuck claw 65 and the auxiliary clamp 64 are opened, and the original state is restored.

By rotating the entire chuck jaw opening / closing mechanism 66,
, Electric wire W₂As shown in FIG. 10 (B),
Between the claw 65 and the auxiliary clamp 64, that is, indicated by the symbol T
Twist U is added to the clip 51 and its front and rear parts.
And plastically deform. As a result, the terminal 9B
Rotate 180 degrees to your heart and turn it upside down.
You can The chuck jaws including the rotary table 71 are opened.
The rotation angle of the entire closing mechanism 66 is determined by the return of the electric wire after twisting,
It is determined as appropriate depending on the wire diameter. When rotating, wire W
₂Before and after the clip 51, the chuck claw 65 and the auxiliary
The clip 51 is fixed with
Since it is positioned on the part 51a, it prevents the jumping up,
In addition, the variation after the terminal is inverted is due to the plastic deformation of the wire.
Therefore, it can be minimized.

[0038]

As described above, according to the present invention,
It is not necessary to manufacture the electric wire with terminals in the order of inserting the terminals, a wide space is not required for installing the manufacturing equipment, and the terminals on both ends of the electric wire with terminals can be simultaneously and quickly inserted into the connector housing. it can.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an example of a wire harness manufacturing apparatus for carrying out the present invention.

FIG. 2 is a side view of an essential part of a first electric wire carrier device 42 used in the present invention.

3 is a perspective view of a main part of the first electric wire carrier 42 of FIG.

4 is an enlarged side view of the wire clip 51 of FIG.

5 (A) and 5 (B) are plan views showing a state of gripping an electric wire by the electric wire clip 51 of FIG. 4, respectively.

6A to 6C are graphs (C) showing electric wire gripping characteristics by the conventional clip (A, B) and the electric wire clip 51 used in the present invention, respectively.

FIG. 7 is an enlarged plan view of an essential part of FIG.

8 is a first and second electric wire carrier device 42, 4 of FIG.
It is a side view of the principal part of FIG.

9 is a side view in which a part of the terminal reversing device 49A (49B) of FIG. 1 is shown in section.

10A and 10B are explanatory views of a method of reversing the terminals by the terminal reversing device 49A of FIG.

FIG. 11 is a schematic plan view showing an example of a conventional device for manufacturing an electric wire with a terminal and inserting the terminal.

12 (A) and (B) are explanatory views of the operation of the electric wire clamp 6A (6B) in FIG. 11, respectively.

FIG. 13 is a perspective view showing a conventional electric wire clip.

14 is a plan view showing an electric wire gripping state of the electric wire clip 21 of FIG. 13. FIG.

FIG. 15 is an explanatory diagram of a conventional electric wire with a terminal and a connector housing into which the terminal is inserted.

FIG. 16 is an explanatory diagram showing another example of a conventional terminal insertion method.

FIG. 17 is an explanatory diagram of an electric wire carrying device using the electric wire clip of FIG. 13.

[Explanation of symbols]

7A, 7B Stripping device 8A, 8B Terminal crimping device 9A, 9B terminal 42 First electric wire conveying device 43 Second electric wire conveying device 45A, 45B Terminal transfer hand 46A, 46B Connector housing 47A, 47B Connector housing 48A, 48B Terminal insertion Hand R Looseness S ₁ Terminal processing station S ₂ Wire placement station S ₃ Terminal insertion station W ₂ , W ₂ ′ Wire

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Suzuki 206-1 Nunobikihara, Haibara-machi, Haibara-gun, Shizuoka Prefecture Yazaki Parts Co., Ltd.

Claims (4)

[Claims] 1. An electric wire group in which both ends of each electric wire are gripped at a constant pitch P, and terminals are crimped to both ends to be transferred in series is converted and arranged according to the order of inserting the terminals on both sides into a connector housing. After that, a method for automatically inserting the electric wire with a terminal into the connector housing is characterized in that the terminals are successively and successively inserted into the respective connector housings arranged on both sides of the electric wire group that has been converted and arranged. 2. An electric wire group in which both ends of each electric wire are gripped at a constant pitch P, and terminals are crimped to both ends to be transferred in series is converted and arranged according to the order of inserting the terminals on both sides into a connector housing. At this time, both ends of each electric wire are gripped by P ′ which is narrower than the pitch P.
A method for automatically inserting the electric wire with terminal described in to the connector housing. 3. An electric wire group in which both ends of each electric wire are gripped at a constant pitch P and terminals are crimped to both ends to be transferred in series is converted and arranged according to the order of inserting the terminals on both sides into a connector housing. At this time, the gap between the grips at both ends of each electric wire is narrowed, and the method for automatically inserting an electric wire with a terminal into a connector housing according to claim 2. 4. Both sides of a first electric wire conveying device, which grips both ends of an electric wire cut to a predetermined length and sequentially conveys the electric wire,
The wire end stripping device and the terminal crimping device are arranged in the wire end treatment station, the second wire transfer device is arranged in the wire feeding direction of the first wire transfer device, and the first wire transfer device is arranged. To the both sides of one side of the second electric wire carrier, terminal transfer means is provided so as to be movable, and the terminal-attached electric wires whose terminals are crimped at both ends in the terminal processing station by the terminal transfer means sequentially put the terminals on both sides into the connector housing. An electric wire placing station for converting and arranging into the second electric wire conveying device according to the order of insertion and attachment, and a connector housing arranged on both sides of the other side of the second electric wire conveying device, and along the second electric wire conveying device. A movable terminal inserter is provided, and the terminal inserter inserts the converted electric wires with terminals into the terminal housing chamber of the connector housing in this order. Apparatus for manufacturing a wire harness, characterized in that it comprises a station.