JP2950179B2 - Terminal insertion device for joint bush - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called direct connection type plug in which one end is connected to a spark plug in a plug hole formed in a cylinder head of an internal combustion engine of an automobile or the like, and an ignition coil is connected to the other end. The present invention relates to a terminal insertion device for attaching a joint terminal to a joint bush during assembly in a joint device.

[0002]

2. Description of the Related Art Conventionally, this type of plug joint device has a joint bush formed in a cylindrical shape from an elastic material such as rubber having an insulating property, and one end of a cylindrical terminal body is provided inside the joint bush. And a joint terminal in which a coil spring as a terminal spring is connected is mounted in an inserted manner.

[0005] In the assembling process of the plug joint device, as shown in FIG. 15, a joint terminal 3 in which one end of a coil spring 2 is inserted and locked in advance in one end of a tubular terminal body 1 in a locking manner. A part of the joint terminal 3 is temporarily inserted into a predetermined position in the joint bush 4 by hand manually to obtain the joint bush 4 in a state where the joint terminal 3 is temporarily inserted, as shown in FIG.

Next, the joint bush 4 in the temporarily inserted state is set at a predetermined position of the terminal inserting machine 5 shown in FIGS.
As shown in FIG. 3, the plug joint device 6 which pushes the joint terminal 3 into a predetermined position in the joint bush 4
Was getting.

That is, in the terminal insertion machine 5, a bush mounting table 8 on which the joint bush 4 in the temporarily inserted state is mounted with its axis centered in the front-rear direction is arranged side by side on one end side on the upper surface side of the gantry 7. A total of ten sets are provided in a set, and each bush mounting table 8 is configured to be movable in the left-right direction along the slide guide 10 by the expansion and contraction operation of the slide cylinder 9.

At the center of the slide path of each bush mounting table 8, 5 bushes
A set of bush retainers 11 is slidably supported in a vertical direction by a support base 12, and each of the bush retainers 11 is configured to be freely movable in the vertical direction by the expansion and contraction operation of a press cylinder 13.

Further, the gantry 7 corresponding to the support 12
An insertion cylinder 14 is provided on the other end portion on the upper surface side. A slide table 16 slidably provided along a pair of left and right slide guides 15 provided corresponds to each bush mounting table 8. Each of the terminal pushers 17 is provided, and the slide base 16 is configured to be movable along the slide guide 15 by the expansion and contraction operation of the insertion cylinder 14.

When the joint bush 4 in the temporarily inserted state is set on each of the five sets of bush mounting tables 8 projecting to one side, and the slide cylinder 9 is operated, the temporarily inserted joint bush 4 is set. Each bush mounting table 8 on which the joint bush 4 is mounted moves to the center side.

Thereafter, the presser cylinder 13 operates to lower each bush presser body 11 onto each bush mounting table 8, and each joint bush 4 is held at a predetermined position. In this state, the insertion cylinder 14 is operated, and each terminal pushing body 17 is moved to the joint bush 4 side, and each terminal pushing body 17 is temporarily inserted into the joint terminal 3 by the terminal pushing body 17.
Is pushed into the joint bush 4 by a predetermined amount.

Thereafter, each terminal pushing body 17 is retracted by the operation of the insertion cylinder 14, each bush holding body 11 is raised by the operation of the holding cylinder 13, and each bush mounting table 8 is restored by the operation of the slide cylinder 9. The joint bush 4, which has been moved to one side position and the insertion of the joint terminal 3 has been completed from each bush mounting table 8, may be taken out.

[0011]

However, in the process of assembling the conventional plug joint device 6, when the joint terminal 3 is temporarily inserted into the joint bush 4, the coil spring 2 sags or bends at the free end. This makes it difficult to insert the joint terminal 3 easily, and the operator uses a nerve so that the coil spring 2 does not detach from the terminal body 1. Was the cause.

Further, since the setting of the joint bush 4 in the provisionally inserted state with respect to the bush mounting table 8 is a manual operation, the set position is not stable, and the insertion position of the joint terminal 3 in the inserted state of the joint terminal 3 due to the variation of the set position. However, there was a disadvantage that it was not stable.

In view of the above problems, the present invention provides a terminal insertion device for a joint bush which facilitates the insertion work of a joint terminal, reduces fatigue of an operator, and stabilizes product quality. With the goal.

[0014]

A technical means for achieving the above object is a joint terminal in which a terminal spring comprising a coil spring is connected to one end of a cylindrical terminal body in a cylindrical joint bush. A terminal insertion device for a joint bush for inserting a joint bush, a temporary insertion bush chuck mechanism and a main insertion bush chuck mechanism for releasably holding the joint bush in a horizontal position, and a bush supply for supplying the joint bush to the temporary insertion bush chuck mechanism. Mechanism, a terminal chuck mechanism concentric with the joint bush held by the temporary insertion bush chuck mechanism, the terminal spring side being a joint bush side, and a terminal chuck mechanism for releasably holding the joint terminal in a laterally oriented posture, and a joint terminal on the terminal chuck mechanism. Supply mechanism and terminal chucking machine Has a centering rod that is inserted from the terminal body side to the terminal spring position in the joint terminal held by the above, and temporarily inserts a part of the joint terminal into the joint bush with the centering rod of the joint terminal inserted The temporary terminal insertion mechanism, the temporary insertion joint bush removal / supply mechanism that takes out the joint bush from the temporary insertion bush chuck mechanism and supplies it to the main insertion bush chuck mechanism, and the joint terminal of the joint bush held by the main insertion bush chuck mechanism And a terminal main insertion mechanism for press-fitting to the set position.

Further, when the joint terminal is temporarily inserted into the joint bush while the centering rod portion of the joint terminal is inserted, the terminal chuck mechanism may be moved integrally with the joint terminal.

The terminal insertion mechanism may further include a pusher for pushing the joint terminal, and a control unit for controlling the insertion amount of the joint terminal press-fitted by the pusher.

Further, the control unit includes a detector mounted on the pusher and detecting a distance from the joint bush. When the distance detected by the detector reaches a set value, the control unit is turned on. The pushing movement may be stopped.

[0018]

According to the present invention, the joint bush is supplied to the temporarily inserted bush chuck mechanism by the bush supply mechanism, and the joint terminal is supplied to the terminal chuck mechanism by the terminal supply mechanism. In this state, the temporary terminal insertion mechanism is driven, and first, the centering rod of the terminal temporary insertion mechanism is inserted into the joint terminal. Next, a part of the joint terminal is temporarily inserted into the joint bush with the centering rod portion inserted.

When the joint terminal is temporarily inserted, since the centering rod portion is inserted from the terminal body side to the terminal spring position, the bending of the free end side of the terminal spring is restricted, and the terminal spring during temporary insertion of the joint terminal is prevented. This has the advantage that the detachment from the terminal body can be effectively prevented, and the temporary insertion of the joint terminal is smoothly performed.

When the temporary insertion of the joint terminal is completed, the joint bush is taken out from the temporary insertion bushing chuck mechanism by the temporary insertion joint bush removal / supply mechanism, and supplied to the main insertion bushing chuck mechanism. In this state, the terminal insertion mechanism is driven, the joint terminal in the temporarily inserted state is pressed into the set position, and a joint bush in which the joint terminal is inserted at a predetermined position is obtained.

As described above, since the temporary insertion and the permanent insertion of the joint terminal are automated, the operator does not need to use extra nerves for detaching the terminal spring or the like, and does not need to manually push the joint terminal in the temporary insertion. Thus, the work can be reduced, the work of inserting the joint terminal can be facilitated, and the fatigue of the worker can be reduced.

Further, since the supply of the joint bush to the temporary insertion bush chuck mechanism and the main insertion bush chuck mechanism is also automated, the supply position of the joint bush to the temporary insertion bush chuck mechanism and the main insertion bush chuck mechanism is stabilized, and the terminal main insertion mechanism is provided. Accordingly, when the joint terminal is press-fitted, the insertion position of the joint terminal into the joint bush is stabilized, and the quality of the product can be stabilized.

When the joint terminal is temporarily inserted into the joint bush in a state where the centering rod portion of the joint terminal is inserted, the terminal chuck mechanism may be integrally moved with the joint terminal. There is an advantage that the posture of the joint terminal is more stable.

Further, the terminal insertion mechanism may further include a pusher for pushing the joint terminal, and a control unit for controlling the insertion amount of the joint terminal press-fitted by the pusher. There is an advantage that the insertion position of the can be easily controlled.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing an overall configuration. And a main terminal insertion portion 22 provided side by side on one side.

The terminal temporary insertion portion 21 includes a temporary insertion bush chuck mechanism 23 for releasably holding the joint bush 4 in a horizontal position, and a joint bush 4 sequentially conveyed by a joint bush supply device 24.
Supply mechanism 25 that supplies the joint terminal 3 to the temporary insertion bush chuck mechanism 23, a terminal chuck mechanism 26 that holds the joint terminal 3 releasably in a horizontal position, and a terminal supply mechanism 2 that supplies the joint terminal 3 to the terminal chuck mechanism 26.
7 and a terminal temporary insertion mechanism 28 for temporarily inserting a part of the joint terminal 3 held by the terminal chuck mechanism 26 into the joint bush 4.

The main insertion bushing chuck mechanism 29 for releasably holding the joint bush 4 into which the joint terminal 3 has been temporarily inserted in a horizontal position is releasably provided in the terminal main insertion portion 22.
And a main terminal insertion mechanism 30 for press-fitting the temporarily inserted joint terminal 3 to a set position.

Further, over the space between the temporary insertion bush chuck mechanism 23 and the main insertion bush chuck mechanism 29,
A provisionally inserted joint bush removal / supply mechanism 31 is provided to take out the joint bush 4 from the temporarily inserted bush chuck mechanism 23 and supply the joint bush 4 to the main insertion bush chuck mechanism 29.

The joint bush supply device 24 is provided with an endlessly circulating belt body 32 which is arranged so as to freely circulate in a predetermined direction P. As shown in FIG. Running direction P over the entire circumference
A plurality of bush holders 33 are mounted at a predetermined interval along.

The joint bush 4 is held in a vertical position by a bush holder 33 so that the joint bush 4 is sequentially conveyed to a predetermined position by circulating the endless belt 32. Have been.

The arrival of the joint bush 4 at a predetermined position is detected by a detector such as a sensor. When the detector detects the joint bush 4, the endless revolving belt body 32 is temporarily stopped from circulating, and the joint bush 4 is stopped. When the detector stops detecting the joint bush 4 by taking out the endless belt, the endless revolving belt body 32 recirculates again.

As shown in FIG. 2, the bush supply mechanism 25 is provided with a pair of chuck bodies 34 made of a synthetic resin or the like which can be freely opened and closed so as to grip the upper end of the joint bush 4. The chuck body 34 is configured to be freely movable in and out of a predetermined direction by advancing and retracting a piston shaft of a cylinder (not shown). The chuck body 34, the cylinder, and the like are configured to be rotatable around the longitudinal axis in FIG.

Incidentally, arc-shaped holding grooves corresponding to the joint bushes 4 are formed on the inner surfaces of the chuck bodies 34 facing each other.

At the initial position where the chuck body 34 is expanded as shown by a solid line in FIG.
When the joint bush 4 conveyed by 2 arrives at a predetermined position, the piston shaft is advanced by the operation of the cylinder, and both chuck bodies 34 are operated to descend. After descending a predetermined distance, both chuck bodies 34 are operated to approach each other, and the upper end of the joint bush 4 is gripped by the chuck bodies 34 here.

Thereafter, the piston shaft is moved backward by the operation of the cylinder, and both chuck bodies 34 are raised. The rising of the two chuck bodies 34 causes the joint bush 4
Is lifted upward. Next, the chuck body 34 and the like are rotated by 90 degrees around the longitudinal axis, and the joint bush 4 is set to the horizontal posture. In this state, the two chuck bodies 34 and the like are traversed, the piston shaft is advanced by the operation of the cylinder, and the joint bush 4 is supplied to the predetermined position of the temporary insertion bush chuck mechanism 23 in a lateral posture.

As shown in FIGS. 1, 2, 5 and 6, the temporary insertion bush chuck mechanism 23 is
A chuck body 3 made of a pair of synthetic resins or the like which can be freely accessed.
When the joint bush 4 is held at 6, the chuck members 34 are opened and the gripping of the joint bush 4 is released. Thereafter, the cylinder is operated, traversed, and rotated 90 degrees in the opposite manner as described above. The two chuck bodies 34 are configured to return to the initial positions.

As shown in FIGS. 3 and 4, the terminal supply mechanism 27 has a joint terminal in which one end of a coil spring 2 as a terminal spring is inserted and locked in one end of a cylindrical terminal body 1 in a retaining manner. A terminal accommodation guide part 38 in which the terminal 3 is accommodated;
A terminal transport mechanism 39 that transports the joint terminal 3 guided by the terminal accommodating guide section 38 to a predetermined position is provided.

The terminal accommodating guide portion 38 is provided between a pair of side wall portions 38a opposed to each other with a space slightly longer than the axial length of the joint terminal 3 and both side wall portions 38a, and extends in one direction. And a bottom wall portion 38b having a downwardly inclined shape, and a lower end side of the bottom wall portion 38b is provided with a terminal drop opening 38c through which the joint terminal 3 can drop.

Then, the bottom wall portion 38 of the terminal accommodation guide portion 38
When the joint terminal 3 is placed on the bottom b, the joint terminal 3 is guided downward by the weight of the joint terminal 3 along the inclination of the bottom wall portion 38b, and the joint terminal 3 falls downward from the terminal drop opening 38c. It is configured to be.

The terminal transport mechanism 39 is disposed below the terminal accommodating and guiding portion 38, and includes a driving pulley 40 and a driven pulley 41, such as timing pulleys, and both pulleys 40,
And an endless revolving belt body 42 composed of a timing belt or the like, which is mounted so as to be able to revolve in a circular manner over the interval 41. It is configured.

On the outer peripheral surface side of the endless running belt body 42, terminal holding grooves 42a in the width direction thereof are formed at predetermined intervals in the circumferential direction. When the terminal holding groove 42a passes below the terminal drop opening 38c of the terminal accommodating guide portion 38, the terminal holding groove 42a
The joint terminal 3 falls into the inside, and is conveyed in the predetermined direction Q while the joint terminal 3 is held in the terminal holding groove 42a.

When the joint terminal 3 held in the terminal holding groove 42a of the endless revolving belt body 42 arrives at a predetermined terminal extraction position A, a terminal detector (not shown) arrives at the terminal extraction position A of the joint terminal 3. And the drive of the drive pulley 40 is stopped by the detection of the terminal detector.

When the joint terminal 3 at the terminal extracting position A is taken out by the terminal chuck mechanism 26, the terminal detector does not detect the joint terminal 3 and drives the driving pulley 40 to drive the next joint. The terminal 3 is configured to be transported to the terminal extracting position A.

The temporary insertion bush chuck mechanism 23 includes:
As shown in FIG. 1, FIG. 2, FIG. 5, and FIG.
An expansion / contraction operation mechanism 45 for horizontally expanding / approaching the pair of chuck bodies 36 by an air cylinder or the like.
The chuck mechanism 36 is configured to be operated to expand and close to each other by the expansion and contraction operation mechanism 45.

In order to hold the joint bush 4 on the inner surfaces of the chuck bodies 36 facing each other in a horizontal position with the axis of the joint bush 4 being horizontal.
An arc-shaped holding groove corresponding to the joint bush 4 is formed. In addition, when the joint bush 4 is held by the chuck bodies 36, the inner surfaces of the chuck bodies 36 facing each other are in contact with each other. Further, a detector such as a sensor for detecting the joint bush 4 held by the two chuck bodies 36 is appropriately provided.

As shown in FIGS. 5 and 6, the terminal chuck mechanism 26 is mounted on a pair of guide rails 47 arranged in the left-right direction in FIG.
The substrate 48 is provided with a substrate 48 which is movable along the guide 7, and a chuck guide rail 49 extending in a direction perpendicular to the guide rail 47 is provided on the substrate 48.

Then, on the chuck guide rail 49,
A support table 50 movable along the chuck guide rail 49 is provided.
Is mounted on the substrate 48.

Further, on the support table 50, there is provided an expansion / contraction operation mechanism 53 for vertically opening / closing a pair of chuck bodies 52 made of synthetic resin or the like by an air cylinder or the like. 53, the two chuck bodies 5
2 are configured to be operated to expand and approach each other.

Then, the slide cylinder 51 is operated with the chuck body 52 expanded, and both chuck bodies 52 are moved from the initial position to the terminal supply mechanism 27 side.
As shown in FIG. 2, when the chuck unit 52 arrives at a predetermined position, the two chuck bodies 52 are approached by the driving of the enlargement / reduction operation mechanism 53 to grip the free end side of the joint terminal 3 located at the terminal extraction position A. Have been.

Next, the slide cylinder 51 is operated in a state where the joint terminal 3 is gripped by the chuck body 52, and the chuck body 52 is returned to the initial position. At the initial position of the chuck body 52, the axis of the joint terminal 3 held by the chuck body 52 and the terminal chuck mechanism 26 of the temporary insertion bush chuck mechanism 23
The joint bush 4 is held so as to be concentric with the axis.

In order to hold the joint terminal 3 in a horizontal position in which the axis of the joint terminal 3 is horizontal, an arc-shaped holding corresponding to the joint terminal 3 is provided on the inner surfaces of the chuck bodies 52 facing each other. Grooves are respectively formed.

As shown in FIGS. 5 to 7, the terminal temporary insertion mechanism 28 is provided on the board 55 on the guide rail 4.
A pair of guide bodies 56 extending in a direction parallel to 7 are mounted, and a rectangular slide board 57 in plan view, which is slidable in the same direction as the substrate 48 along the guide bodies 56, is mounted between the guide bodies 56. I have. Further, the slide substrate 5 is provided on the edge of the substrate 55 opposite to the terminal chuck mechanism 26.
A stopper body 58 for restricting the movement of the shutter 7 is mounted.

A pair of guide rails 59 extending in a direction parallel to the guide rails 47 is mounted on the upper surface side of the slide board 57, and a slide plate 60 is slidably mounted along the guide rails 59. I have.

A slide cylinder 61 for moving the slide plate 60 along the guide rail 59 is mounted on the slide board 57.

The terminal chuck mechanism 2 of the slide plate 60
The terminal centering rod 62 as a centering rod part is provided at the end on the 6th side.
Are detachably mounted, and the axis of the terminal centering rod 62 is the axis of the joint bush 4 held by the chuck body 36 and the joint terminal 3 held by the chuck body 52.
It is arranged so as to be concentric with the axis of.

As shown in FIGS. 10 to 12, the terminal centering rod 62 has a small diameter shaft portion 62a inserted into the coil spring 2 and a medium diameter shaft portion 6 inserted into the terminal body 1.
2b and a large-diameter shaft portion 62c larger in diameter than the terminal body 1 are sequentially provided concentrically. As shown in FIG. 11, when the terminal centering rod 62 is inserted into the joint terminal 3, the free end of the coil spring 2 is slightly left to reach the position of the coil spring 2 to be inserted. Have been.

A temporary insertion cylinder 64 is disposed on one side of the terminal chuck mechanism 26, and the tip of the piston shaft 64 a of the temporary insertion cylinder 64 is connected to the slide board 57 and the board 48. And the piston shaft 64
When a is retracted, the slide board 57 and the board 48 are integrally moved from the initial position to the temporary insertion bush chuck mechanism 23 under the guidance of the guide body 56 and the guide rail 47, respectively. Also, the piston shaft 64a
Is configured to return the slide substrate 57 and the substrate 48 to the initial positions by the advance operation.

The main insertion bush chuck mechanism 29 includes:
1, 8 and 9, the chuck body 67 made of a pair of synthetic resins or the like is horizontally placed on a base 66 by an air cylinder or the like. And an expansion / contraction operation mechanism 68 for expanding / approaching in the direction.
As a result, the chuck bodies 67 are opened and approached to each other, and the joint bush 4 is releasably held by the opening and approaching operations of the chuck bodies 67.

In order to hold the joint bush 4 on the inner surfaces of the chuck bodies 67 facing each other, the joint bush 4 is held in a horizontal position with the axis of the joint bush 4 being horizontal.
An arc-shaped holding groove corresponding to the joint bush 4 is formed. Further, when the joint bush 4 is held by the chuck bodies 67, the inner surfaces of the chuck bodies 67 facing each other are in contact with each other. Further, as shown in FIG. 13, a detector 69 such as a sensor for detecting the joint bush 4 held by the two chuck bodies 67 is appropriately provided.

As shown in FIGS. 8 and 9, the terminal main insertion mechanism 30 has a support base 72 provided on a substrate 71, and a main insertion cylinder 73 composed of a hydraulic cylinder is mounted and supported on the support base 72. I have.

The piston shaft 73 of the main insertion cylinder 73
a is the chuck body 67 of the main insertion bush chuck mechanism 29.
And a terminal insertion jig 74 as a pushing body is detachably attached to the protruding end of the piston shaft 73a. .

The terminal insertion jig 74 is shown in FIGS.
As shown in FIG. 3, an insertion shaft portion 74a inserted into the terminal body 1 of the joint terminal 3, a pressing shaft portion 74b larger in diameter than the terminal body 1, and a piston shaft 73a larger in diameter than the pressing shaft portion 74b. A female screw shaft portion 74d having a female screw hole 74c to be screwed into the male screw shaft portion 73b provided at the protruding end is provided concentrically and sequentially, and the terminal insertion jig 74 is screwed into the piston shaft 73a. In the mounted state, the axial center of the piston shaft 73a, the axial center of the terminal insertion jig 74, and the axial center of the joint bush 4 held by the chuck body 67 are arranged concentrically. .

A distance detector 75 such as an optical sensor for detecting the distance from the flange end surface 4a of the joint bush 4 is mounted on the outer peripheral surface of the female screw shaft portion 74d.
The control unit 76 controls the amount of protrusion of the piston shaft 73a in accordance with a signal from the distance detector 75.

That is, the piston shaft 7 of the main insertion cylinder 73
3a is advanced, and the flange end face 4a and the distance detector 75 are moved.
When the distance between them reaches a set value appropriately set, the control unit 76 stops the projecting operation of the piston shaft 73a. Then, the piston shaft 73a is moved backward to return to the initial position.

As shown in FIGS. 5, 6, 8 and 9, the temporary insertion joint bush removal / supply mechanism 31 includes a chuck body 36 of the temporary insertion bush chuck mechanism 23.
A pair of chuck mechanisms 77 for releasably holding both ends of the joint bush 4 held in the axial direction in the axial direction are provided so as to be freely opened and closed.

When the joint bush 4 is moved downward from the initial position above the joint bush 4 held by the chuck body 36 in an expanded state, and when the joint bush 4 is reached, the operation is approached. Each is held by the chuck mechanism 77. Next, when the chuck body 36 is expanded and the gripping of the joint bush 4 is released, each chuck mechanism 77 is raised, and
Thereafter, the traverse movement operation is performed above the main insertion bush chuck mechanism 29 arranged on one side.

When each chuck mechanism 77 arrives above the main insertion bush chuck mechanism 29, each chuck mechanism 77 is operated to descend, and the joint bush 4 is moved to both chuck bodies 6
When it arrives between the seven positions, both chuck bodies 67 are operated to approach each other.
Then, when the joint bush 4 is held by the two chuck bodies 67, the respective chuck mechanisms 77 are operated to expand, and thereafter, the respective chuck mechanisms 77 are operated to ascend and then traverse to be returned to the initial position.

Further, in the initial position state of each chuck mechanism 77, there is provided a not-shown main insertion joint bush ejection mechanism located above the main insertion bush chuck mechanism 29, and the main insertion joint bush ejection mechanism is temporarily inserted. Similar to the joint bush removal / supply mechanism 31, a pair of chuck mechanisms are provided. The chuck mechanism is driven in synchronization with the chuck mechanism 77 of the temporary insertion joint bush removal / supply mechanism 31 to remove the joint bush 4 from the temporary insertion bush chuck mechanism 23. When taking out, the joint bush 4 is taken out from the main insertion bush chuck mechanism 29.

The embodiment of the present invention is configured as described above. Next, a series of operations for inserting the joint terminal 3 into the joint bush 4 will be described.

That is, when the joint bush 4 sequentially transported by the joint bush supply device 24 reaches a predetermined position, the bush supply mechanism 25 is driven.

Then, the bush supply mechanism 25 supplies the joint bush 4 arriving at the predetermined position to the temporary insertion bush chuck mechanism 23.

When the joint bush 4 is supplied between the two chuck bodies 36 by the bush supply mechanism 25, the temporary insertion bush chuck mechanism 23 holds the joint bush 4 in a predetermined lateral position by operating the two chuck bodies 36 closer to each other. Is done.

On the other hand, when the joint terminal 3 has arrived at the terminal extraction position A of the terminal supply mechanism 27, the terminal chuck mechanism 26 is driven to receive the joint terminal 3 at the terminal extraction position A, and the original initial position. Is returned to.

Then, the temporary insertion bush chuck mechanism 23
When it is detected that the joint terminal 3 is held at the initial position of the terminal chuck mechanism 26, the terminal temporary insertion mechanism 28 is driven.

That is, first, the slide cylinder 61 of the terminal temporary insertion mechanism 28 is operated, the terminal centering rod 62 advances to the joint terminal 3 side, and the small diameter shaft portion 62a is moved to the position of the coil spring 2 as shown in FIG. The operation of the slide cylinder 61 is stopped when the state in which the intermediate diameter shaft portion 62b is inserted into the joint terminal 3 is obtained in the insertion shape.

Next, the temporary insertion cylinder 64 operates to move the slide substrate 57 and the substrate 48 integrally to the temporary insertion bush chuck mechanism 23 side. By the movement of the temporary insertion bush chuck mechanism 23, the joint terminal 3 is inserted into the joint bush 4 held by the chuck body 36 with the terminal centering rod 62 inserted.

When the joint terminal 3 is inserted by a predetermined amount by the operation of the temporary insertion cylinder 64, the operation of the temporary insertion cylinder 64 is stopped, and the chuck body 52 of the terminal chuck mechanism 26 is opened. The slide cylinder 6
1, the terminal centering rod 62 is returned to the initial position, and the temporary insertion cylinder 64 is operated to move the slide substrate 5
7 and the substrate 48 are returned to the initial position. Here, the temporary insertion step of the joint terminal 3 is completed.

When the provisional insertion step is completed, the provisional insertion joint bush removal / supply mechanism 31 is driven, and after the pair of chuck mechanisms 77 are operated to descend, the chuck mechanisms 77 are operated to approach each other, and the joint bush 4 is moved. To grip. Thereafter, when both chuck bodies 36 are opened and the holding of the joint bush 4 is released, a pair of chuck mechanisms 77 are operated to ascend, and the temporarily inserted bush 4 is temporarily moved by the temporarily inserted bush chuck mechanism 23.
Is taken out.

Next, when the respective chuck mechanisms 77 are traversed and arrive above the main insertion bush chuck mechanism 29, they are stopped, and the respective chuck mechanisms 77 are lowered. Then, when the joint bush 4 is supplied between the two chuck bodies 67, the two chuck bodies 67 are operated to approach each other, and the joint bush 4 is held in a predetermined lateral orientation.

The joint bush 4 has two chuck bodies 67
, Each chuck mechanism 77 is operated to expand,
Thereafter, it is returned to the initial position.

When the insertion bush chuck mechanism 29 detects that the joint bush 4 is held,
The terminal insertion mechanism 30 is driven. That is, the main insertion cylinder 73 of the terminal main insertion mechanism 30 operates to operate the terminal insertion jig 7.
4 advances to the joint bush 4 side. At this time, the distance between the flange and the end face 4a is continuously measured by the distance detector 75.

When the distance between the distance detector 75 and the flange end face 4a reaches the set value, the operation of the main insertion cylinder 73 is stopped. At this time, as shown in FIG. 14, a state is obtained in which the joint terminal 3 is inserted into the joint bush 4 by a predetermined amount according to the set value.

Thereafter, the main insertion cylinder 73 is operated to return the terminal insertion jig 74 to the initial position. Here, the final insertion step of the joint terminal 3 is completed.

When the main insertion process is completed, the main insertion joint bush take-out mechanism is driven, and a pair of chuck mechanisms are operated to descend. Is opened, and the holding of the joint bush 4 is released. Thereafter, a pair of chuck mechanisms for gripping the joint bush 4 are raised, and the joint bush 4 in a state where the insertion of the joint terminal 3 is completed is taken out from the main insertion bush chuck mechanism 29.

Next, each of the chuck mechanisms is traversed and the joint bush 4 is carried out to a predetermined position.

While the terminal is temporarily inserted by the terminal temporary insertion section 21, the terminal is fully inserted in the terminal insertion section 22, and the temporary insertion bush chuck mechanism 23 is used.
The bush is supplied to the temporary insertion bush chuck mechanism 23 while the joint bush 4 is taken out from the main insertion bush chuck mechanism 29 while the joint bush 4 is taken out from the main body and the joint bush 4 is supplied to the main insertion bush chuck mechanism 29. The joint bush 4 is supplied by the mechanism 25.

As described above, since the terminal centering rod 62 is inserted from the terminal 1 to the position of the coil spring 2 during the temporary insertion step of the joint terminal 3, the bending of the free end of the coil spring 2 is restricted. As a result, detachment from the terminal body 1 due to hooking of the coil spring 2 with the joint bush 4 during temporary insertion of the joint terminal 3 can be effectively prevented, and temporary insertion of the joint terminal 3 into the joint bush 4 is also performed smoothly. .

Further, since the temporary insertion step and the main insertion step of the joint terminal 3 into the joint bush 4 are automated, the operator does not need to use extra nerves for detaching the coil spring 2 and the like, and the joint by hand at the time of the temporary insertion. The work of pushing in the terminal 3 is not required, and the work can be reduced, so that the work of inserting the joint terminal 3 can be facilitated and the fatigue of the operator can be reduced.

Further, the temporary insertion bush chuck mechanism 23
The supply of the joint bush 4 to the temporary insertion bush chuck mechanism 23 and the full insertion bush chuck mechanism 29 is stabilized because the supply of the joint bush 4 to the main insertion bush chuck mechanism 29 is also automated. Is press-fitted, the insertion position of the joint terminal 3 into the joint bush 4 is stabilized, and the quality of the product can be stabilized.

When the joint terminal 3 is temporarily inserted into the joint bush 4 with the terminal centering rod 62 inserted into the joint terminal 3, the terminal chuck mechanism 26 is integrally moved while holding the joint terminal 3. This has the advantage that the posture of the joint terminal 3 during the temporary insertion is more stable.

The terminal insertion mechanism 30 further includes a distance detector 75 on the terminal insertion jig 74.
The distance between the terminal and the flange end surface 4a is detected, and when the distance between the two reaches a set value, the operation of inserting the joint terminal 3 by the terminal insertion jig 74 is stopped. Thus, there is an advantage that the insertion position of the joint terminal 3 can be easily controlled by changing the setting of the mutual distance between the distance detector 75 and the flange end face 4a by easily controlling the insertion amount of the joint terminal 3 press-fitted.

Further, different types of joint bushes 4
When the joint terminal 3 is used, different types of corresponding terminal centering rods 62 and terminal insertion jigs 74 may be prepared and replaced appropriately. And the distance detector 75
It is sufficient that the mutual distance between the flange and the flange end face 4a is set as desired by the control unit 76.

[0093]

As described above, according to the terminal insertion device for the joint bush of the present invention, the temporary insertion bush chuck mechanism and the temporary insertion bush chuck mechanism for releasably holding the joint bush in the horizontal position, and the temporary insertion bush. A bush supply mechanism that supplies a joint bush to the chuck mechanism, and a terminal that is concentric with the joint bush held by the temporary insertion bush chuck mechanism and that releasably holds the joint terminal in a lateral orientation with the terminal spring side as the joint bush side. A joint mechanism having a chuck mechanism, a terminal supply mechanism for supplying a joint terminal to the terminal chuck mechanism, and a centering rod portion inserted into the joint terminal held by the terminal chuck mechanism from the terminal body to the terminal spring position. Join with the centering rod of the terminal inserted A terminal temporary insertion mechanism for temporarily inserting a part of the terminal into the joint bush, a temporary insertion joint bush removal / supply mechanism for taking out the joint bush from the temporary insertion bush chuck mechanism and supplying it to the main insertion bush chuck mechanism, and a main insertion bush chuck A terminal main insertion mechanism for press-fitting the joint terminal of the joint bush held by the mechanism to a set position,
When the joint terminal is temporarily inserted, the centering rod portion is inserted from the terminal body side to the terminal spring position, so that the bending of the free end side of the terminal spring is restricted, and the terminal spring of the terminal spring when the joint terminal is temporarily inserted is removed. There is an advantage that the detachment of the joint terminal can be effectively prevented, and the temporary insertion of the joint terminal can be performed smoothly.

Further, since the temporary insertion and the permanent insertion of the joint terminal are automated, the operator does not need to use extra nerves for detaching the terminal spring and the like, and also does not need to manually push the joint terminal in the temporary insertion. Thus, there is an advantage that the work of inserting the joint terminal can be facilitated and the fatigue of the operator can be reduced.

Further, since the supply of the joint bush to the temporary insertion bush chuck mechanism and the main insertion chuck mechanism is also automated, the supply position of the joint bush to the temporary insertion bush chuck mechanism and the main insertion chuck mechanism is stabilized. When the terminal is press-fitted, the insertion position of the joint terminal into the joint bush is stabilized, and there is an advantage that the quality of the product can be stabilized.

When the joint terminal is temporarily inserted into the joint bush while the centering rod portion of the joint terminal is inserted, the terminal chuck mechanism may be integrally moved with the joint terminal. There is an advantage that the posture of the terminal is more stable.

Further, if the main terminal inserting mechanism is provided with a pusher for pushing the joint terminal and a control unit for controlling the insertion amount of the joint terminal press-fitted by the pusher, the structure of the joint terminal can be obtained. There is an advantage that the insertion position can be easily controlled.

[Brief description of the drawings]

FIG. 1 is an overall schematic explanatory view showing an embodiment of the present invention.

FIG. 2 is a schematic explanatory view of a bush supply mechanism.

FIG. 3 is an explanatory plan view of a terminal supply mechanism.

FIG. 4 is an explanatory front view of FIG. 3;

FIG. 5 is an explanatory plan view of a terminal temporary insertion portion.

FIG. 6 is an explanatory front view of FIG. 5;

FIG. 7 is an explanatory right side view of the terminal temporary insertion mechanism in FIG. 6;

FIG. 8 is an explanatory plan view of the terminal insertion section.

FIG. 9 is an explanatory front view of FIG. 8;

FIG. 10 is an explanatory diagram of a temporary insertion step.

FIG. 11 is an explanatory diagram of a temporary insertion step.

FIG. 12 is a diagram illustrating a temporary insertion step.

FIG. 13 is an explanatory diagram of a main insertion step.

FIG. 14 is an explanatory diagram of a main insertion step.

FIG. 15 is an explanatory diagram of a terminal insertion step in a conventional example.

FIG. 16 is an explanatory view of a terminal insertion step in a conventional example.

FIG. 17 is an explanatory view of a terminal insertion step in a conventional example.

FIG. 18 is a plan view of a conventional terminal insertion machine.

FIG. 19 is a front view of FIG. 18;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal body 2 Coil spring 3 Joint terminal 4 Joint bush 20 Terminal insertion device 21 Terminal temporary insertion part 22 Terminal main insertion part 23 Temporary insertion bush chuck mechanism 24 Joint bush supply device 25 Bush supply mechanism 26 Terminal chuck mechanism 27 Terminal supply mechanism 28 Terminal Temporary insertion mechanism 29 Main insertion bush chuck mechanism 30 Terminal main insertion mechanism 31 Temporary insertion joint bush removal / supply mechanism 62 Terminal centering rod 76 Control unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01T 13/00-21/06 F02P 13/00

Claims (4)

(57) [Claims] 1. A terminal insertion device for a joint bush in which a joint terminal having a terminal spring made of a coil spring connected to one end of a cylindrical terminal body is inserted into a cylindrical joint bush. A temporary insertion bush chuck mechanism and a full insertion bush chuck mechanism that are releasably held in a horizontal orientation, a bush supply mechanism that supplies a joint bush to the temporary insertion bush chuck mechanism, and a joint bush held by the temporary insertion bush chuck mechanism. Chuck mechanism that releasably holds the joint terminal in a horizontal orientation with the terminal spring side being the joint bushing side, a terminal supply mechanism that supplies the joint terminal to the terminal chuck mechanism, and a joint that is held by the terminal chuck mechanism Terminal spring inside terminal from terminal body side A terminal temporary insertion mechanism that temporarily inserts a part of the joint terminal into the joint bush in a state in which the centering rod part of the joint terminal is inserted and the centering rod part of the joint terminal is inserted, and a temporary insertion bush chuck mechanism. A temporary insertion joint bush removal / supply mechanism for taking out the joint bush and supplying it to the main insertion bush chuck mechanism, and a terminal main insertion mechanism for press-fitting the joint terminal of the joint bush held by the main insertion bush chuck mechanism to a set position. A terminal insertion device for a joint bush. 2. The terminal chuck mechanism is moved integrally with the joint terminal when the joint terminal is temporarily inserted into the joint bush with the centering rod portion of the joint terminal inserted. A terminal insertion device for the joint bush as described. 3. The terminal main insertion mechanism includes a pusher for pushing a joint terminal, and a controller for controlling an insertion amount of the joint terminal press-fitted by the pusher. A terminal insertion device for the joint bush according to claim 1. 4. The control unit includes a detector mounted on the pusher and detecting a distance from the joint bush. When the distance detected by the detector reaches a set value, the pusher pushes the pusher. 4. The moving movement is stopped.
A terminal insertion device for the joint bush as described.