JP2682799B2 - Insulator connection method and connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator connecting method and a connecting device for sequentially connecting a plurality of insulators.

[0002]

2. Description of the Related Art Generally, in the suspension insulator 1, as shown in FIG.
As shown in FIG. 8, the cap metal fitting 3 is fitted and fixed on the outside of the head 2a of the porcelain insulator main body 2 via the cement 4, and the pin metal fitting 5 is installed on the inside of the head 2 with the cement 6
Inserted through and fixed. Further, the cap fitting 3 is formed with an engaging portion 3a having a vertical cross section as shown in FIG. 6 and a horizontal cross section as shown in FIG. Then, while the pair of suspension insulators 1 are arranged close to each other in the axial direction, the engaging portion 3a of the cap metal fitting 3 of one insulator 1 is engaged with the pin metal fitting 5 of the other insulator 1 so that both insulators 1 are They are connected to form an insulator series.

Further, when the suspension insulator 1 is connected, the split pin 8 is driven into the pin insertion hole 7 of the cap fitting 3 so that the pin fitting 5 does not move in the axial direction within the engaging portion 3a of the cap fitting 3. It is like this. Further, in order to prevent the split pin 8 itself from coming out of the pin insertion hole 7, the tip end portion 8a of the split pin 8 is expanded to the outside prior to the engagement with the pin fitting 5.

In connection with this type of conventional insulator series, an operator manually carries the suspension insulators 1 one by one and arranges them in close proximity to each other, and the cap metal fitting 3 of one insulator 1 is attached to the other insulator 1. The insulator 1 was sequentially connected by engaging with the pin fitting 5 of No. 1. Further, in this connected state, as shown in FIG. 7, the operator drives the cotter pin 8 previously inserted into the pin insertion hole 7 of the cap fitting 3 with a mallet or the like, and as shown in FIG. The central protruding portion 8b of the split pin 8 was pushed into the inner side of the pin insertion hole 7. In this manner, the pin fitting 5 is prevented from falling off the cap fitting 3, the suspension insulator 1 is held in a connected state, and a serious accident such as disconnection of the insulator string does not occur.

[0005]

However, this conventional method of connecting insulators has the following various problems. (1) Carry insulator 1, cap metal fitting 3 and pin metal fitting 5
Since each of the work of connecting with and the work of driving the split pin 8 is manually performed by the worker, the work requires a lot of labor and the work efficiency is poor. (2) Since the worker directly handles the insulator 1, there is a risk that the insulator 1 may be accidentally damaged during the work. (3) Since the worker is connecting the insulators 1, the number of the insulators 1 may be wrong. (4) Since the worker drives the split pin 8 with a mallet or the like, the state where the split pin 8 is insufficiently driven is likely to occur.

The present invention has been made by paying attention to the problems existing in such conventional techniques. Its main purpose is to carry out the work of loading the insulator, connecting the cap metal fittings and the pin metal fittings, and driving the cotter pins automatically, thus reducing the labor required for the work and improving the work efficiency. It is an object of the present invention to provide a method and a device for connecting insulators, which can improve the performance.

Another object of the present invention is to provide an insulator connecting method and connecting device capable of preventing an operator from accidentally damaging the insulator and accurately connecting a predetermined number of insulators. To provide.

A further object of the present invention is to provide an insulator connecting method and connecting device which can surely drive the split pin into the pin insertion hole and prevent the risk of insufficient split pin driving. To do.

[0009]

In order to achieve the above object, in the invention of the method for connecting insulators according to claim 1,
The insulator is prepared by inserting the cotter pin into the pin insertion hole of the cap metal fitting in advance, and it is connected to the mating insulator to which the insulator is connected with the axis bent so that it is connected to the insulator, and the cap metal fitting of the insulator and the insulator It is characterized in that the pin fittings are connected and the split pins of the cap fitting are driven in this connected state.

According to a second aspect of the invention, in the method for connecting the insulator according to the first aspect, the connecting position is
It is provided with a first position for arranging the insulator and a second position for arranging an insulator to be connected to the porcelain, and the porcelain is carried into the first position of the connecting position and then transferred intermittently to the second position side. It is characterized by doing.

Further, in the invention of the insulator connecting device according to the third aspect, an insulator formed by inserting a split pin into the pin insertion hole of the cap fitting in advance is carried into the connecting position, and the insulator is connected to the insulator. In contrast, the coupling mechanism connects the insulator cap metal fittings and the insulator pin metal fittings with the axis bent, and the pin driving mechanism that drives the cotter pins of the cap metal fittings in this connected state, grips the insulator and connects them. And a gripping transfer mechanism for intermittently transferring the entire insulator string by repeating a predetermined pitch by a predetermined pitch.

Further, in the invention according to claim 4, in the insulator connecting device according to claim 3, the pin driving mechanism is incorporated in the carry-in connecting mechanism.

In the invention according to claim 5, in the insulator connecting device according to claim 3, the pin driving mechanism is provided separately from the carry-in connecting mechanism, and the carry-in connecting mechanism alternately corresponds to the connecting position. It is characterized by being arranged.

Further, in the invention described in claim 6, in the insulator connecting device according to claim 3, the gripping transfer mechanism supports the transfer from a lower portion of the outer periphery and transfers the transfer conveyor. The present invention is characterized by comprising a pair of openable and closable gripping bodies that are gripped from both sides of the outer circumference, and a moving means that moves the gripping bodies in conjunction with a transfer conveyor.

[0015]

In the insulator connecting method and the connecting device configured as described above, the carry-in connecting mechanism carries in the insulator by inserting the split pin into the pin insertion hole of the cap fitting in advance. Then, the insulator is connected and arranged in a state where the axis is bent with respect to the other insulator to which the insulator is connected. As a result, the cap metal fitting of the insulator is connected to the pin metal fitting of the mating insulator.

In the connected state of the insulator, the split pin of the insulator is driven into the pin insertion hole by the pin driving mechanism, and the movement of the pin fitting in the axial direction is restricted. Further, at the time of driving the split pins, the gripping transfer mechanism grips the insulator of the mating partner. Then, after the split pins are driven, the entire insulator string is intermittently transferred by a predetermined pitch by the grip transfer mechanism.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a suspension insulator connecting device embodying the present invention will be described below with reference to FIGS. As shown in FIG. 1, the machine base 11 is arranged on the floor surface of a factory or the like, and a conveyor 12 for transportation is laid on the machine base 11. The push-up table 13 is arranged at the terminal end of the conveyor 12 so as to be movable up and down on the machine table 11.
Then, as shown in FIGS. 1 and 7, the suspension insulator 1 in which the split pin 8 is inserted into the pin insertion hole 7 of the cap fitting 3 in advance in the previous step is conveyed by the conveyor 12 from the previous step. After that, the push-up table 13 is lifted to push up from the terminal end of the conveyor 12.

The apparatus frame 14 is the conveyor 1 for carrying.
It is disposed on the floor surface of a factory or the like, adjacent to the second machine base 11. The connecting mechanism 15 is attached to an operating arm of a work robot (not shown), and is moved between an insulator receiving position P1 on the machine base 11 and an insulator connecting position P2 on the device frame 14. In addition, at this insulator connection position P2, a first position P2a for arranging the insulator 1 to be subsequently loaded and a second position P for arranging the partner insulator 1 that has been previously loaded and to be connected.
2b are provided. Then, after the insulator 1 is received by the connecting mechanism 15 from the push-up base 13 at the insulator receiving position P1, the first position P2a of the insulator connecting position P2 is obtained.
Be delivered to.

That is, as shown in FIGS. 1 and 3, the support plate 16 of the connecting mechanism 15 is rotatably attached to the working arm of the work robot, and is rotated by a predetermined angle by a servomotor 17 with a brake. Opening / closing cylinder 18
Is attached to the support plate 16 and its piston rod 19
A pair of open / close plates 20 is attached to the. The holding arm 21 is attached to the opening / closing plate 20 through the long hole 22 and the bolt 23 so as to be positionally adjustable, and is placed at a predetermined position according to the size of the cap fitting 3 of the insulator 1, as shown by a solid line and a chain line in FIG. Movement adjusted.

When the opening / closing plate 20 is closed by the opening / closing cylinder 18 while the connecting mechanism 15 is moved to a position corresponding to the push-up base 13 at the insulator receiving position P1, as shown by the chain line in FIG. , Insulator 1 between the clamping arms 21
The cap metal fitting 5 is clamped. After that, as shown by the solid line in FIG. 1, the connecting mechanism 15 is moved from the insulator receiving position P1 to the insulator connecting position P2, and the insulator 1 is carried in from the push-up table 13 to the first position P2a of the insulator connecting position P2. .

Further, during the loading of the insulator 1, the support plate 16 is rotated by a predetermined angle by the servo motor 17,
The insulator 1 is connected to the insulator 1 arranged at the second position P2b of the insulator connection position P2 in an inclined state in which the axis is bent. As a result, the engaging portion 3a of the cap metal fitting 3 of the insulator 1 that has been carried into the first position P2a is moved to the second position P2
It is connected to the pin fitting 5 of the insulator 1 arranged in b.

The pin driving mechanism 24 is the connecting mechanism 15 described above.
It is installed so that it can be moved inside. That is, the driving cylinder 25 is attached to the support plate 16, and a driving punch 26 is formed at the tip of the piston rod. Then, when the pair of insulators 1 are connected at the insulator connection position P2 and the driving punch 26 is projected by the driving cylinder 25, the split pin 8 is driven into the pin insertion hole 7. As a result, as shown in FIG. 8, the protruding portion 8b of the split pin 8 is pushed into the inner side of the pin insertion hole 7.

The gripping transfer mechanism 27 is connected to the insulator connecting position P2.
Is mounted on the device frame 14 so as to correspond to Then, when the split pin 8 is driven in, the gripping transfer mechanism 27 causes the second position P of the insulator connection position P2.
The insulator 1 arranged in 2b is gripped from both sides of the outer circumference. After the driving of the split pins 8, the gripping transfer mechanism 27 intermittently transfers the entire insulator series to the right side in FIG. 1 by the connection pitch of the insulator 1.

That is, as shown in FIGS. 1 and 2, a pair of transfer conveyors 28 are stretched around the apparatus frame 14 via a drive pulley 29 and a plurality of guide pulleys 30 so as to be capable of rotating. Inclined surface 28a of transfer conveyor 28
Are formed by the guide pulleys 30 arranged diagonally above and below the first position P2a so that the insulator 1 can be easily arranged diagonally. A large number of wooden support blocks 31 are provided on the outer peripheral surfaces of both transfer conveyors 28 at predetermined intervals,
The connecting mechanism 15 allows the first position P of the insulator connecting position P2.
The insulator 1 carried into the 2a is supported by the support block 31 from both lower sides of the outer circumference.

The transfer motor 32 is the device frame 14
, And its motor shaft is connected to the drive pulley 30. When the transfer conveyor 32 is intermittently rotated in the clockwise direction of FIG. 1 by the transfer motor 32, the insulator 1 supported on the support block 31 is intermittently transferred to the right side of FIG. To be done. As a result, each insulator 1 of the insulator series is moved from the first position P2a of the insulator connection position P2 to the second position P2b, and then to the position further to the right of the second position P2b.

As shown in FIGS. 1 and 2, a pair of support rails 34 are provided so that the moving table 33 can move between the vertically extending portions of the transfer conveyor 28 along the transfer direction of the transfer conveyor 28. It is movably supported on the device frame 14 via. The lead screw 35 is the device frame 1
4 is rotatably supported, and a nut 36 attached to the lower surface of the moving base 33 is screwed to the feed screw 35. A moving motor 37 as a moving means is mounted on the device frame 14, and the moving motor 37 causes the pulleys 38, 3 to move.
The feed screw 35 is rotated through the belt 9 and the belt 40.
Then, by the rotation of the feed screw 35, the movable table 33 is moved in the same direction in conjunction with the transfer of the transfer conveyor 28.

The pair of columns 41 are movably supported on the moving table 33 via a pair of guide rods 42 in a direction orthogonal to the moving direction of the moving table 33. The pair of grippers 43 are provided on the facing surfaces of the columns 41 and the guide rails 44.
It is supported so as to be vertically movable via. The contact / separation cylinder 45 is mounted on the movable table 33, and its piston rod is connected to the column 41. Then, the pair of columns 41 are moved by the contacting / separating cylinder 45 in the direction of approaching or separating from each other, and the second position P2b of the insulator coupling position P2 is reached.
The insulator 1 arranged at is grasped or released from both sides of the outer periphery of both grasping bodies 42.

The pair of adjusting screws 46 are rotatably supported by the columns 41, and nuts 47 attached to the gripping body 43 are screwed into the centers of the adjusting screws 46, respectively. The operation handle 48 is attached to the upper end of each adjustment screw 46, and by rotating the adjustment screw 46 with this operation handle 48, the grip body 43 is moved and adjusted to a predetermined height position according to the outer diameter dimension of the insulator 1. can do.

Next, the operation of the suspension insulator connecting device of this embodiment constructed as described above will be described. Now,
In this suspension insulator coupling device, as shown in FIG. 7 in the previous step, the pin insertion hole 7 of the cap fitting 3 of the suspension insulator 1 is inserted.
The cotter pin 8 is inserted into and the tip 8a of the cotter pin is expanded outward. Then, the suspension insulator 1 is intermittently transported from the previous process to the coupling device by the transport conveyor 12, and is pushed up from the end portion of the transport conveyor 12 by the push-up table 13.

On the other hand, when the connecting operation of the insulator series is started in the suspension insulator connecting device, the holding arm 21 is closed and the push-up base 13 is first arranged with the connecting mechanism 15 corresponding to the insulator receiving position P1. The first insulator 1 supported above is gripped between the gripping arms 21. After that, the connecting mechanism 15 is moved from the chain line position in FIG. 1 to the solid line position,
The insulator 1 is carried into the first position P2a of the insulator connection position P2. At this time, the insulator 1 is the inclined surface 2 of the transfer conveyor 28.
8a is inclinedly arranged. In this state, the holding arm 21
Is opened, and the insulator 1 is transferred onto the support block 31 of the transfer belt 28 in the grip transfer mechanism 27.

After that, the transfer belt 28 of the gripping transfer mechanism 27 is intermittently moved around, and the first insulator 1 is transferred from the first position P2a of the insulator connection position P2 to the second position P2b. In this state, the grasping body 43 of the grasping and transferring mechanism 27 is moved closer, the insulator 1 is grasped from both sides of the outer periphery on the support block 31, and is held in a state where the axis is horizontally extended as shown in FIG. To be done.

Next, the second insulator 1 supported on the push-up base 13 is gripped between the gripping arms 21 in a state where the connecting mechanism 15 is arranged corresponding to the insulator receiving position P1.
Then, the insulator 1 is carried into the first position P2a of the insulator connection position P2 by the movement and rotation of the connection mechanism 15,
For the first insulator 1 arranged in the second position P2b,
The axes are bent and connected in an inclined state. As a result, the engaging portion 3 of the cap fitting 3 in the second insulator 1
a is connected to the pin fitting 5 of the first insulator 1 to be connected.

In this state, the driving punch 26 of the pin driving mechanism 24 installed in the connecting mechanism 15 is projected and the split pin 8 of the second insulator 1 is driven into the pin insertion hole 7. As a result, as shown in FIG. 8, the protruding portion 8b of the split pin 8 is pushed into the inner side of the pin insertion hole 7,
The pin fitting 5 is restricted within the engaging portion 3 a of the cap fitting 3 so as not to move in the axial direction.

After that, the holding arm 21 of the connecting mechanism 15 is opened, and the holding of the second insulator 1 is released. At this time, the grip body 43 of the grip transfer mechanism 27 is in the closed state, and the first insulator 1 is maintained in the grip state. In this state, the transfer conveyor 27 of the gripping transfer mechanism 27 and the moving table 33 are intermittently moved in association with each other, and the first insulator 1 is carried out from the second position P2b of the insulator connection position P2, and
The second insulator 1 is moved from the first position P2a of the insulator connection position P2 to the second position P2b.

Further, regarding the third and subsequent insulators 1,
Similar to the second insulator 1 described above, it is carried into the first position P2a of the insulator coupling position P2 and moved to the second position P2b side after the split pin 8 is driven. Then, by repeating this operation, a predetermined number, usually 3 to 6, of the insulators 1
Are connected in series to form an insulator string.

As described above, in the suspension insulator connecting apparatus of this embodiment, the steps of carrying in the insulator 1, connecting the cap fitting 3 and the pin fitting 5, and driving the split pin 8 are carried out successively. It can be done automatically. Therefore, compared to the conventional method in which the worker manually performed these,
The labor required for the work can be reduced and the work efficiency can be improved.

Further, in the suspension insulator connecting device of this embodiment, since the operator does not handle the insulator 1 directly, it is possible to prevent the insulator 1 from being accidentally dropped during work and being damaged. it can. Moreover, it is possible to prevent a mistake in the number of the insulators 1 connected, and it is possible to accurately connect the insulators 1 by a predetermined number.

Further, in the suspension insulator connecting device of this embodiment, the pin driving mechanism 24 can reliably drive the split pin 8 into the pin insertion hole 7 with a predetermined driving force. Therefore, it is possible to prevent the risk of insufficient driving of the split pin 8 as in the conventional method in which a hammer is used to perform the driving operation manually.

Moreover, in the suspension insulator connecting device of this embodiment, since the pin driving mechanism 24 is incorporated in the connecting mechanism 15, the supporting mechanism for movably supporting the pin driving mechanism 24 and the pin driving mechanism. A moving mechanism for moving the mechanism 24 need not be provided exclusively.
Therefore, the configuration of the entire device can be simplified.

[0040]

[Second Embodiment] Next, a second embodiment of the suspension insulator connecting device embodying the present invention will be described with reference to FIGS. Now, in this embodiment, the pin driving mechanism 24 is not installed in the connecting mechanism 15, but is installed separately from the connecting mechanism 15. Further, the pin driving mechanism 24 and the connecting mechanism 15 are alternately arranged to move to a position corresponding to the second position P2b of the insulator connecting position P2. The other structure is the same as that of the first embodiment described above.

That is, the support plate 51 is erected on the floor surface of a factory or the like via a base 52 so as to be adjacent to the grip transfer mechanism 27, and a movable plate 53 is provided on the front surface thereof with a pair of guide rods 54. It is supported so as to be laterally movable. The moving cylinder 55 is mounted on the support plate 51, and its piston rod is connected to the moving plate 53. The moving plate 55 causes the moving plate 53 to move to the insulator connecting position P.
The second position P2b is moved to a position corresponding to the second position P2b and a position laterally retracted therefrom.

The driving punch 56 is supported on the front surface of the moving plate 53 so as to be vertically movable via a pair of guide rods 57. The driving cylinder 58 is mounted on the front surface of the moving plate 53, and its piston rod has a driving punch 56.
It is connected to. Then, as shown by the chain line in FIG.
With the moving plate 53 arranged at a position corresponding to the second position P2b of the insulator connecting position P2, the driving cylinder 58 is driven.
The split pin 8 of the insulator 1 is driven into the pin insertion hole 7 by lowering the driving punch 56 at.

In the suspension insulator connecting device of the second embodiment, the connecting mechanism 15 and the moving plate 53 of the pin driving mechanism 24 are alternately moved to a position corresponding to the second position P2b of the insulator connecting position P2. After being moved, the carrying-in and connecting operation of the insulator 1 and the driving operation of the split pin 8 are alternately performed. Then, other operations are performed in the same manner as in the first embodiment described above.

Therefore, also in the suspension insulator connecting device of the second embodiment, the same effect as that of the first embodiment described above can be exhibited. Further, in the second embodiment, in particular, the connecting mechanism 15 is provided separately from the pin driving mechanism 24 so that the connecting mechanism 15 is alternately moved to a position corresponding to the second position P2b of the insulator connecting position P2. There is. Therefore, the loading and connecting operation of the insulator 1 and the driving operation of the split pin 8 can be alternately performed without any play time, and the connecting work time of the entire insulator string can be shortened.

The present invention is not limited to the configuration of each of the above-described embodiments, and for example, the configuration of each part can be arbitrarily modified and embodied as follows. (A) When the suspension insulator 1 is conveyed by the connecting mechanism 15, the pin metal fitting 5 of the insulator 1 is magnetically attracted by using the magnetic force and conveyed to the connecting position. With this structure, the structure of the connecting mechanism 15 can be simplified and the carrying operation can be facilitated. (B) In the grip transfer mechanism 27, the insulator 43 should be gripped by the grip body 43 so as to grip the pin fitting 5. With this configuration, the metal portion can be reliably gripped.

The technical ideas other than the claims that can be understood from the above-described embodiments will be described below along with their effects. (1) The insulator connecting device according to claim 4, wherein the transfer conveyor is provided with an inclined surface for arranging the insulator at a first position for arranging an insulator to be carried in later.
With this configuration, the insulator can be easily arranged in the inclined position at the first position.

[0047]

Since the present invention is configured as described above, it has the following excellent effects. According to the invention described in claims 1 to 6, it is possible to automatically perform the work of loading the insulator, the connection of the cap fitting and the pin fitting, and the driving of the split pin, and the labor required for the work. Can be reduced and the work efficiency can be improved.

Further, according to the inventions of claims 1 to 6, since the operator does not directly handle the insulator, it is possible to prevent the insulator from being damaged accidentally, and at the same time, to provide a predetermined number of insulators. Can be connected exactly.

Further, according to the inventions of claims 1 to 6, the split pin can be reliably driven into the pin insertion hole, and the risk of insufficient split pin driving can be prevented. it can.

Moreover, according to the invention of claim 4,
A support mechanism for movably supporting the pin driving mechanism, and a moving mechanism for moving the pin driving mechanism,
It is not necessary to provide it exclusively, and the configuration of the entire device can be simplified.

According to the invention described in claim 5,
The carry-in connecting mechanism and the pin driving mechanism are alternately moved to the connecting position, so that the carry-in connecting operation of the insulator and the pin driving operation can be performed alternately. Therefore, the connecting work time of the entire insulator string can be shortened.

[Brief description of the drawings]

FIG. 1 is a partial front view showing a first embodiment of a suspension insulator connecting device embodying the present invention.

FIG. 2 is an enlarged partial side sectional view showing a gripping transfer mechanism in the suspension insulator coupling device.

FIG. 3 is a partial front sectional view showing, in an enlarged manner, a carry-in connection mechanism and a pin driving mechanism in the suspension insulator connection device.

FIG. 4 is a partial front view showing a second embodiment of the suspension insulator connecting device embodying the present invention.

FIG. 5 is a partial side sectional view showing a gripping transfer mechanism in the suspension insulator coupling device.

FIG. 6 is a vertical cross-sectional view showing a connected state of the suspension insulator.

FIG. 7 is a partial transverse cross-sectional view showing a state in which a split pin is inserted into a pin insertion hole of a cap fitting in the suspension insulator.

8 is a partial transverse cross-sectional view showing a state in which a split pin has been driven into the pin insertion hole from the state of FIG. 7.

[Explanation of symbols]

1 ... Suspended insulator, 2 ... Insulator body, 3 ... Cap metal fitting, 5 ...
Pin fitting, 7 ... Pin insertion hole, 8 ... Split pin, 15 ... Connection mechanism, 18 ... Opening / closing cylinder, 21 ... Clamping arm, 24
... Pin driving mechanism, 25 ... Driving cylinder, 26
... punching punch, 27 ... gripping transfer mechanism, 28 ... transfer conveyor, 32 ... transfer motor, 33 ... moving base, 35 ...
Feed screw, 37 ... Motor for moving as moving means, 41
... column, 43 ... gripping body, 45 ... contact / separation cylinder, 53
... Moving plate, 56 ... Driving punch, 58 ... Driving cylinder, P2 ... Insulator connecting position, P2a ... First position of insulator connecting position, P2b ... Second position of insulator connecting position.

Claims (6)

(57) [Claims] 1. An insulator, which is obtained by inserting a split pin into a pin insertion hole of a cap fitting in advance, is carried into a connecting position, and is connected in a state in which an axis is bent with respect to an insulator of a partner to which the insulator is connected. A method for connecting insulators, comprising connecting the cap fitting and the pin fitting of the insulator, and driving the split pin of the cap fitting in this connected state. 2. The connection position is a first position for arranging an insulator and a second position for arranging an insulator of a mating partner.
With the position, after the insulator is loaded into the first position of the connecting position,
The method for connecting insulators according to claim 1, wherein the insulators are sequentially transferred to the second position side. 3. An insulator prepared by previously inserting a split pin into a pin insertion hole of a cap metal fitting is carried into a connecting position, and is connected to a mating insulator to which the insulator is connected in a state in which an axis line is bent to form an insulator. A connecting mechanism that connects the cap fitting and the pin fitting of the insulator, a pin driving mechanism that drives the split pin of the cap fitting in this connected state, and the entire insulator series that grips the insulator and repeats the connection is transferred intermittently at a predetermined pitch. And a gripping and transferring mechanism for connecting the insulator to the insulator. 4. The insulator connecting device according to claim 3, wherein the pin driving mechanism is incorporated in a carry-in connecting mechanism. 5. The insulator connecting device according to claim 3, wherein the pin driving mechanism is provided separately from the carry-in connecting mechanism and is arranged so as to alternately correspond to the carry-in connecting mechanism at the connecting position. . 6. The gripping transfer mechanism comprises a transfer conveyor for supporting and transferring the insulator from a lower portion of the outer circumference, a pair of openable and closable gripping bodies for gripping the insulator from both sides of the outer circumference, and the gripping body for transferring the gripper. The insulator connecting device according to claim 3, wherein the insulator connecting device is configured to include a moving unit that moves in conjunction with the conveyor.