JPH0754728B2 - Method and device for automatically connecting branch lines - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for hooking an overhead wire in a construction for connecting a branch line to an overhead wire that is energized, peeling the overhead wire, mounting a metal sleeve for crimping, and compression connecting the same. The present invention relates to a device capable of automatically performing the work of step 1 and a method of automatically connecting branch lines using the device.

[0002]

2. Description of the Related Art Conventionally, as a tool capable of safely stripping off the coating of an overhead wire that is energized by remote control, for example, one described in Japanese Patent Application Laid-Open No. 2-246714 is known. However, there has not yet been developed a device capable of automatically performing the work of peeling the overhead wire, mounting the crimping metal sleeve, and compressing and connecting them in sequence.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the work of stripping an overhead wire, mounting a metal sleeve for crimping, and compressing and connecting them can be automatically carried out in order, and the structure is relatively simple. An object of the present invention is to provide an apparatus and a branch line connecting method using the apparatus.

[0004]

In the present invention, in order to solve the above problems, a reciprocating movement is carried out on a frame 2 which can be hooked on an overhead wire W in a direction substantially orthogonal to the axis of the overhead wire W. A movable table 3 is freely provided and is driven by a motor 16, and the movable table 3 is moved by a predetermined distance in one direction to approach the overhead wire W and receives it. The peeling machine 4 that can peel off the covering of the overhead wire W with a predetermined width by the rotation of the cutter 39 is provided, and the compressor 5 is provided so as to face the overhead wire W by sandwiching the overhead wire W, Between the pair of dies 55 and 56 of the compressor 5, the crimping metal sleeve 60 to which the branch line W1 is attached is held in advance, and after the peeling is completed, the movable base 3 is moved in the other direction by a predetermined distance, and the overhead wire is moved. W
And receives the overhead wire W into the opening of the sleeve 60, and branches the three wires of the overhead wire W, the branch line W1, and the sleeve 60 together by the compression operation of the dies 55 and 56. An automatic wire connecting device 1 was constructed.

[0005]

The automatic connecting device 1 of the present invention is hung at the tip of the manipulator, for example, and brought close to the overhead electric wire W being energized. Between the pair of dies 55, 56 of the compressor 5, a crimping metal sleeve 60 to which the branch line W1 is attached in advance is held. The device 1 is brought to a predetermined position of the overhead wire W with the compressor 5 and the gripper 6 open, and the overhead wire W is inserted between the gripping members 9 and 10 of the gripper 6 from the side. Then, first, the gripping machine 6 is caused to perform an electric wire gripping operation, and in conjunction with this, the hook device 7 is erected, and this is hooked on the overhead wire W. With this, the entire device 1 is stably hooked on the overhead wire W. Next, the movable table 3 is moved in one direction for a predetermined distance to bring the peeling machine 4 close to the overhead wire W, and the overhead wire W is received by the peeling machine 4. After rotating the cutter 39 of the peeling machine 4 to strip off the coating C of the overhead wire W with a predetermined width, the moving table 3 is moved in the other direction for a predetermined distance to bring the compressor 5 closer to the overhead wire W, The overhead wire W is received in the opening 60a of the sleeve 60 held between the dies 55 and 56. Then, the overhead wires W, the branch wire W1, and the sleeve 60 are integrally crimped by the compression operation of the dies 55 and 56. After the completion of the crimping, the dies 55 and 56 are opened, the overhead wire W is released from the grip, the hook device 7 is turned over, and the device 1 is removed from the overhead wire W.

[0006]

An embodiment of the present invention will be described with reference to the drawings. 1 is a front view of the automatic connecting device, FIG. 2 is a side view of the same, FIG. 3 is a schematic plan view of the same, FIG. 4 is a side view of a gripper, FIG. 5 is a side view of a hook device, and FIG. Is a front view with a part cut away, FIG. 7 is a side view with a part cut away of the skin remover, FIG. 8 is a perspective view of the rotor, FIG. 9 is a plan view of the rotor, FIG. 10 is a side view of the rotor, 11 is a perspective view of the operating mechanism of the brush, FIG.
2 is an explanatory view of the operation mechanism of the brush, FIG. 13 is a front view of the compressor, and FIG. 14 is a side view of the compressor.

The branch line automatic connection device 1 of this embodiment is
As shown in FIGS. 1 to 3, a frame 2 that can be hooked on an overhead wire W, and a movement provided on the frame 2 so as to be capable of reciprocating in a direction substantially orthogonal to the axis of the overhead wire W. A stand 3, an electric wire peeling machine 4 provided on the moving stand 3, and a compressor 5 provided on the moving stand 3 so as to face the peeling machine 4 with the overhead wire W interposed therebetween. It has.

The frame 2 is formed in a substantially rectangular shape in a plan view, and a gripping machine 6 for hanging the overhead wire W on both sides,
And a hook device 7. Gripping machine 6 and hook device 7
Is for securing the frame 2 on both sides in a stable manner and hanging it substantially horizontally to the overhead wire W.

As shown in FIG. 4, the gripping machine 6 is provided with a main body 8 fixed to the frame 2 at the lower portion, and a pair of upper and lower gripping members 9 and 10 provided on the main body 8. Body 8
Includes an open portion 8a which is opened in a lateral direction in a substantially C shape so that the overhead wire W can be received from the side, and gripping members 9 and 10 are provided above and below the open portion 8a so as to face each other. Has been. The lower gripping member 10 can be lifted and lowered by the forward and reverse rotation of the motor 11, and can hold the overhead wire W with the upper gripping member 9 when rising. The limit switch LSW1 detects the completion of the gripping operation of the electric wires by the gripping members 9 and 10, and the limit switch LSW2 detects that the gripping member 10 has reached the bottom dead center. The upper grip member 9 is supported by the main body 8 so as to be vertically movable within a short range, and a disc spring 62 is provided between the upper grip member 9 and the main body 8. Then, when the gripping operation is completed, the spring 62 is compressed and lifted to operate the limit switch LS1.

As shown in FIG. 5, the hook device 7 is provided on the frame 2 so as to face the opposite side of the gripping machine 6. The hook device 7 includes a main body 12 fixed to the frame 2, and a substantially L-shaped hook member 13 pivotally attached to the main body 12 so as to stand and fall. The hook member 13 is connected to the motor 11 of the gripping device 6 via the wire 14.
(FIG. 4). The hook member 13 normally falls, but when the gripping members 9 and 10 grip the overhead wire W, the wire 14 is pulled at the same time and the hook member 13 is pulled.
Stands up and hangs on the overhead wire W.

Further, on the frame 2, a pair of parallel guide rails 15 extending horizontally in a direction orthogonal to the axis of the overhead wire W on which the gripper 6 and the hook device 7 are hung are fixed horizontally. The movable table 3 is provided with the guide rail 1
It is provided on top of 5 and is movable along it (FIG. 3). That is, the motor 16 is fixed to the moving table 3, and the pinion gear 17 connected to the motor 16 is
The rack 18 fixed to the frame 2 in parallel with the guide rails 15 meshes with it, and the movable table 3 is moved by the forward and reverse rotations of the motor 16 (FIGS. 1 and 2).

As shown in FIG. 2, the peeling machine 4 is provided at one end side of the moving table 3 in the moving direction. That is, the peeling machine 4 includes a frame 19 fixed to the moving table 3, a housing 20 attached to the frame 19, and a rotor 21 rotatably housed in the housing 20.

As shown in FIGS. 6 and 7, the housing 20
Has a substantially cylindrical shape, and the rotor 21 is opened approximately 90 °.
And an enclosing space 23 for the rotor 21 inside. Surrounding wall 2 of the holding space 23
0c has an arcuate cross section. A drive shaft 24 is installed between both side walls 20 a and 20 b of the housing 20 so as not to be exposed in the holding space 23. At one end of the drive shaft 24, the sprocket 2 is located outside the side wall 20a.
5 is fixed, and the drive gear 26 is fixed to the other end so as to be located inside the side wall 20b and partially exposed to the holding space 23. A motor 27 is fixed to the frame 19 below the housing 20, and an output shaft 28 of the motor 27 is installed in parallel with the drive shaft 24. The sprocket 2 is attached to one end of the output shaft 28.
9 is fixed, and a chain 30 is wound around the sprocket 29 and the sprocket 25 of the drive shaft 24. Therefore, the drive gear 26 is driven by the motor 27 to rotate forward and backward.

As shown in FIGS. 8 to 10, the rotor 21 has a substantially cylindrical shape, and has a space 21a through which the overhead wire W penetrates at the center thereof, and the overhead wire W is located in this space 21a.
In order to be able to embrace, it is divided into two along the axial direction, and one side is hinged so that it can be opened and closed with respect to each other. Therefore, the rotor 21 includes a main body 31 which is one half and a lid 32 which is the other half. Body 3
1 and one end side of the lid 32, a gear piece 34, which is connected to each other in a closed state to form a circular passive gear 33,
35 is fixed. Further, the lid 32 has a main body 31
A magnet 36 that is attracted to is embedded. An opening 38 for discharging the coating C of the stripped overhead wire W is formed between the sides of the main body 31 and the lid 32 on the mutual hinge side.

As shown in FIG. 10, a cutter 39 is fixed to the side of the lid 32 on the hinge side. The cutter 39 is
It is a rectangular flat plate, has a blade 39a on one side, and is fixed at a predetermined angle with respect to the radial direction of the rotor 21, and when the rotor 21 rotates in one direction, this blade 39a It is possible to cut into the coating C of the overhead wire W and to cut off the wire coating C of a predetermined width at a time. At both ends of the blade 39a, standing blades 39b slightly standing upright from the surface are formed. This standing blade 39b
Thereby, both ends of the width of the electric wire coating C to be cut off can be smoothly cut.

The main body 31 has an overhead wire W inside the rotor 21.
In the state of hugging, the polishing brush 40 is provided so as to be movable in the radial direction between a position in contact with the outer circumference of the overhead wire W and a position away from it. That is, the polishing brush 4
A guide bolt 41 penetrating both sides of 0 is screwed into the main body 31, and a spring 42 is provided between the brush 40 and the main body 31.
Has been inserted. Therefore, the brush 40 is guided by the guide bolt 41 to be movable, and is biased toward the axial center of the rotor 21 by the spring 42 so as to come into contact with the outer circumference of the overhead wire W. Further, the main body 31 is provided with a latch mechanism 43 and a tripping mechanism 44. The latch mechanism 43 engages with the brush 40 and prevents the brush 40 from moving inward at a position where the brush 40 is pushed outward in the radial direction of the rotor 21 and does not contact the outer circumference of the overhead wire W. The tripping mechanism 44 senses the rotation of the rotor 21 in the other direction, releases the engagement of the latch mechanism 43 with the brush 40, and allows the contact with the overhead wire W.

As shown in FIG. 11, the latch mechanism 43 includes
The brush 40 includes an engaging shaft 45 protruding from the main body 31, a latch shaft 46 provided in the main body 31 so as to be movable back and forth in the axial direction, and a spring 47 for biasing the latch shaft 46 in the forward direction. Engagement shaft 45
Includes a slit 45a, and the flat portion 46a of the latch shaft 46 is inserted into the slit 45a so as to be movable in the axial direction. The latch shaft 46 has a right-angled engagement step portion 46b protruding toward the flat portion 46a on the base end side, while the engagement shaft 4 has
Reference numeral 5 denotes an engagement recess 45b on one side of the base end side thereof, with which an engagement step portion 46b of the latch shaft 46 engages when the latch shaft 46 is at the forward position.
Have. The engagement shaft 45 cannot move in the axial direction when the engagement step portion 46b is engaged with the engagement recess 45b (FIG. 12a).

The tripping mechanism 44 comprises a tripping shaft 48 installed in the main body 31 and rollers 50 mounted on both ends of the tripping shaft 48 via one-way clutches 49. That is, the roller 50 independently rotates freely in one direction and rotates integrally with the trip shaft 48 in the other direction. Roller 50
Is slightly projected from the outer peripheral surface of the main body 31 (see FIG.
0), when the rotor 21 rotates in the housing 20, it rolls on the inner peripheral surface of the peripheral wall 20c of the housing 20. The trip shaft 48 has a flat portion 48 in the middle.
a, the latch shaft 46 is provided in a direction perpendicular to the flat portion 48a.
The tip of is in contact. Therefore, the latch shaft 46 advances and retracts in the axial direction each time the trip shaft 48 rotates 90 degrees forward and backward.

Inside the peripheral wall 20c of the housing 20,
A scraping protrusion 21d is provided for separating the stripped coating C from the rotor 21. Therefore, when the rotor 21 rotates, the protrusion 21d relatively moves in the immediate vicinity of the outer periphery of the lid 32, and the fragment C1 of the coating C attached to the outer periphery of the lid 32 can be forcibly scraped off. Has become.

As shown in FIGS. 1 to 3, the compressor 5 is mounted on the mounting base 3a of the moving base 3 via the spring 51 and the base 52 so as to face the peeling machine 4. There is. Therefore, the compressor 5 can move up and down with respect to the movable table 3 by expanding and contracting the spring 51, and can also approach the overhead wire W by moving the movable table 3 in the other direction. Figure 1
As shown in FIGS. 3 and 14, the compressor 5 includes a main body 53 fixed to the hydraulic cylinder 54 at the lower portion, and a pair of upper and lower dies 55 and 56 provided on the main body 53. The hydraulic cylinder 54 is fixed to the base 52. Body 53
Is provided with an opening portion 53a that is opened in a lateral shape in a substantially C-shape so that the overhead wire W can be received from the lateral side, and the dies 55, 5 are vertically opposed to each other inside the opening portion 53a.
6 is provided. The lower die 56 is the cylinder 5
4 is mounted on a ram 63 (not shown) and the motor 5
It is possible to raise and lower by the hydraulic pressure sent from the pump 58 by the rotation of 7, and the metal sleeve 60 for crimping and the overhead wire W can be crimped with the upper die 55 when ascending. The compression center position by the dies 55 and 56 is determined by the gripper 6
The gripping members 9 and 10 are set to be slightly higher than the gripping center position. That is, the position of the upper die 55 is arranged higher than that of the upper gripping member 9 so as not to hinder the reception of the overhead wire W from the side. However, at this time, the spring 51 is compressed and aligned. In FIG. 14, 59 is a sleeve cover made of elastic synthetic resin, and a sleeve 60
Along with that, it is set between the dies 55 and 56. A branch wire W1 is attached to the sleeve 60 in advance, and the opening 60a for receiving the electric wire is set to face the peeling machine 4 side. Reference numeral 61 denotes a suspending arm, which is used when suspending the device 1 with a manipulator or the like.

The automatic connection device 1 of this embodiment is, for example,
It is hung on the tip of the manipulator and brought close to the overhead wire W that is energized. Between the pair of dies 55 and 56 of the compressor 5, the crimping metal sleeve 60 to which the branch line W1 is attached in advance is provided.
To hold. The device 1 is brought to a predetermined position of the overhead wire W with the compressor 5 and the gripper 6 open, and the overhead wire W is inserted between the gripping members 9 and 10 of the gripper 6 from the side. Then, first, the gripping machine 6 is caused to perform a wire gripping operation, and in conjunction with this, the hook member 13 of the hook device 7 is erected, and this is hooked on the overhead wire W. With this, the entire device 1 is stably hooked on the overhead wire W (FIG. 3A). Next, the movable table 3 is moved in one direction (rightward in FIG. 3) by a predetermined distance to bring the peeling machine 4 close to the overhead wire W, and the overhead wire W is received by the rotor 21 of the peeling machine 4 (FIG. 3B). . The rotor 21 is set in the housing 20 in a state where the main body 31 and the lid 32 are opened in advance (FIG. 7, virtual line), and the open portion is directed to the overhead wire W side. The brush 40 is pushed inward in the radial direction of the rotor 21 and held by the latch mechanism 43 so as not to come into contact with the outer circumference of the overhead wire W (FIGS. 10 and 12A). Then, when the motor 27 is started, the output shaft 45, the sprocket 29, the chain 3
0, the sprocket 25, the drive shaft 24, and the gear 26 sequentially rotate. In FIG. 7, when the drive gear 26 rotates in the clockwise direction, the rotor 21 and the gear piece 34 meshing with the drive gear 26 rotate together.
The main body 31 rotates along the inner circumference of the peripheral wall 20c of the housing 20, and the lid 32 is drawn into the holding space 23 from the opening 22. At the same time, the lid 32 is pushed by the peripheral wall 20c and The overhead wire W is bonded to the inside of the rotor 21. The main body 31 and the lid 32 have a magnet 36.
Therefore, even if the lid 32 comes to the position of the opening 22, the space between the lid 32 and the main body 31 does not open. When the rotor 21 further rotates, the cutter 39 attached to the lid 32 bites into the coating C of the overhead wire W and makes one rotation around the overhead wire W, thereby stripping the coating C over a predetermined width. The stripped off piece C1 has a substantially C-shaped cross section and is attached so as to grip the outside of the lid 32 due to its elasticity (FIG. 10). In this state, the rotor 21
When the rotation continues, the fragment C1 is drawn between the rotor 21 and the housing 20 and becomes inoperable. Therefore, the rotation of the rotor 21 causes the protrusion 20d to relatively move in the immediate vicinity of the outer circumference of the lid body 32 to forcibly scrape off the fragment C1 of the coating C adhering to the outer circumference of the lid body 32. Conventional rotor 2
During one rotation, the roller 50 moves the peripheral wall 2 of the housing 20.
0c rolls in one direction, but idles with respect to the trip shaft 48, and the trip shaft 4 moves at the position shown in FIG. 12 (A).
8 is stationary, the latch shaft 46 is
The brush 40 is held in the retracted position by engaging with the engagement shaft 45 of 0. When the rotor 21 has rotated a predetermined number of times and the stripping of the coating C has been completed, the motor 27 automatically reverses rotation and the rotor 21 rotates in the opposite direction by a predetermined angle. By this reversal, the roller 50 rotates in the opposite direction, but this time, the one-way clutch 49 is connected to the shaft 48, and the shaft 48 rotates integrally. As shown in FIG. 12B, when the shaft 48 rotates, the flat portion 48a pushes the latch shaft 46 in the axial direction, and when the shaft 48 rotates 90 °, the engagement step portion 46b causes the engagement recess portion 4b to move.
5b, the brush 40 is pushed out by the spring 42 and pressed against the surface of the stripped overhead wire W.
After the brush 40 reaches this state, the motor 27 reverses and the rotor 21 rotates a predetermined number of times in the opposite direction, during which the brush 40 polishes the surface of the overhead wire W. When the polishing of the overhead wire W is completed, the lid 32 opens the opening 22 of the housing 20.
The motor 27 is stopped in the state where the position is reached. After stripping the coating C of the overhead wire W with a predetermined width, the movable table 3 is moved in the other direction (left in FIG. 3, right in FIG. 7),
The peeling machine 4 is separated from the overhead wire W, and the compressor 5 is brought close to the overhead wire W. At this time, the space between the lid 32 and the main body 31 is opened against the magnetic force (FIG. 7, phantom line). In addition,
The motor 27 is provided with an encoder, and its rotation direction and rotation speed are controlled. When the movable table 3 moves a predetermined distance,
Sleeve 6 held between dies 55 and 56 of compressor 5
The overhead wire W is received in the opening 60a of 0 (FIG. 3).
(C)). Then, the overhead wires W, the branch wire W1, and the sleeve 60 are integrally crimped by the compression operation of the dies 55 and 56. At this time, the die 56 rises to a position where the overhead wire W is pushed up, but the spring 51 is compressed via the pedestal 52, and the compressor 5 itself descends with respect to the frame 2, resulting in a gap between the gripping members of the gripping machine 6. There is no vertical difference between the shaft center of the overhead wire W in FIG. 1 and the shaft center of the overhead wire W between the dies 55 and 56. During the compression operation, the sleeve cover 59 is closed and engaged to cover the sleeve 60. After the crimping is completed, the dies 55 and 56 are opened, the gripping machine 6 releases the overhead wire W, the hook member 13 is turned over, the device 1 is removed from the overhead wire W, and the branch line W1 connection work is completed. To do. All the operations up to this point are automatically performed.

[0022]

As described above, in the present invention, the movable table 3 is reciprocally movable on the frame 2 which can be hooked on the overhead wire W in a direction substantially orthogonal to the axis of the overhead wire W. It is provided and driven by the motor 16, and on the moving table 3, the moving table 3 moves a predetermined distance in one direction to approach the overhead wire W to receive it.
The peeling machine 4 that can peel off the covering of the overhead wire W with a predetermined width by the rotation of the cutter 39 is provided, and the compressor 5 is provided so as to face the overhead wire W by sandwiching the overhead wire W, The crimping metal sleeve 60 in which the branch line W1 is previously mounted between the pair of dies 55 and 56 of the compressor 5.
After the completion of the peeling, the moving base 3 moves in the other direction by a predetermined distance to approach the overhead wire W to receive the wire into the opening of the sleeve 60, and the dies 55 and 56 perform a compression operation to bridge the overhead wire. Since the automatic connection device 1 for the branch line is configured so that the W, the branch line W1, and the sleeve 60 can be integrally compressed, it is possible to peel off the overhead wire, attach a metal sleeve for crimping, and perform the compression connection. It is possible to provide a device having a relatively simple structure that can automatically perform work in order.

[Brief description of drawings]

FIG. 1 is a front view of an automatic connection device.

FIG. 2 is a side view of the automatic connection device.

FIG. 3 is a schematic plan view of an automatic connection device.

FIG. 4 is a side view of the gripping machine.

FIG. 5 is a side view of the hook device.

FIG. 6 is a front view in which a part of the wire stripping machine is cut away.

FIG. 7 is a side view in which a part of the wire stripping machine is cut away.

FIG. 8 is a perspective view of a rotor.

FIG. 9 is a plan view of a rotor.

FIG. 10 is a side view of the rotor.

FIG. 11 is a perspective view of the operating mechanism of the brush.

FIG. 12 is an explanatory diagram of an operating mechanism of a brush.

FIG. 13 is a front view of a compressor.

FIG. 14 is a side view of the compressor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic connection device 2 Frame 3 Moving table 4 Stripping machine 5 Compressor 6 Gripping machine 7 Hook device 9 Gripping member 10 Gripping member 16 Motor 39 Cutter 55 Dice 56 Dice 60 Crimping metal sleeve 60a Opening C coating W Electric wire W1 Branch line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 591265633 Kayo Denki Kogyo Co., Ltd. 2-6 Hamamatsucho, Minato-ku, Tokyo (71) Applicant 000005290 Furukawa Electric Co., Ltd. 2-6 Marunouchi, Chiyoda-ku, Tokyo No. 1 (71) Applicant 391011386 Japan Burnday Co., Ltd. 3-1, Ekimaehonmachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 1 (71) Applicant 000144108 Saneisha Co., Ltd. 5-2-1 Ebara, Shinagawa-ku, Tokyo (72) Inventor Masaaki Ito 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Company, Inc. (72) Inventor Noriyuki Kaihara 4-83-3 Shibaura, Minato-ku, Tokyo Kandenko Co., Ltd. (72) Inventor Kasai Kouji Yamanashi Prefecture, 810 Nakatame, Tamago-cho, Nakakoma-gun Sanwa Techchi Co., Ltd. Kofu Factory (72) Inventor Koichi Machida 1 Kiba, Koto-ku, Tokyo 5-1 Fujikura Electric Wire Co., Ltd. (72) Inventor Kazumi Wakamatsu 1-8-1, Daisaku Sakura City, Chiba Prefecture Stock Company Kayo Electric Industry Co., Ltd. Sakura Factory (72) Inventor Yoshiaki Abe Chiyoda, Tokyo 2-6-1 Marunouchi Ward Furukawa Electric Co., Ltd. (72) Inventor Akira Tanabe 3-26-33 Takanawa, Minato-ku, Tokyo Japan Berndy Co., Ltd. (72) Tomoo Obata Oyama City, Tochigi Prefecture Nishi-Kuroda 87 Saneisha Research Laboratory (56) Reference JP-A-3-195313 (JP, A)

Claims (5)

[Claims] 1. A frame of an automatic connecting device is hooked on an overhead wire in a state where a crimping metal sleeve having a branch line mounted in advance is held between a pair of dies of a compressor on a moving table in the automatic connecting device. , On this frame, the motor is driven to move the movable base a predetermined distance in a direction substantially orthogonal to the axis of the overhead electric wire, and the peeling machine on the movable base receives the overhead electric wire, and the cutter is placed around the overhead electric wire. After peeling off the coating of the overhead wire with a predetermined width by rotating it to the opposite direction, the moving table is moved in the opposite direction by a predetermined distance to bring the compressor on the moving table close to the overhead wire, and to the opening of the sleeve. An automatic branch line connecting method, which receives an overhead wire and compresses a die to integrally compress the overhead wire, the branch wire, and the sleeve. 2. A frame that can be hooked on an overhead wire, a motor-driven moving table provided on the frame so as to be reciprocally movable in a direction substantially orthogonal to the axis of the overhead wire, and this movement. It is provided on the table, and by moving a predetermined distance in one direction in the moving table, it comes close to and receives the overhead wire, and the cutter can rotate around the overhead wire to peel off the coating of the overhead wire with a predetermined width. The stripping machine and the overhead wire are sandwiched between the pair of dies to hold the crimping metal sleeve, which is provided on the moving table so that the stripping machine faces the stripping machine and has a branch line in advance. After the completion, the moving base moves in the other direction for a predetermined distance to approach the overhead wire and receive the overhead wire into the opening of the sleeve, and the die compresses the overhead wire, branch line, and sleeve together. Pressure An automatic connecting device for branch lines, comprising: a compressor capable of contracting. 3. The compressor is elastically mounted on the movable table via a spring, and when the compression operation between the pair of dies is performed, the compressor and the shaft center of the overhead wire in the latching portion of the frame are compressed. 3. The automatic branch line connecting device according to claim 2, wherein the automatic connection device for branch lines is provided so as to be capable of relative displacement with respect to the frame so as to automatically align the shaft center of the overhead wire between the dies. 4. The frame according to claim 2 or 3, wherein the frame has a gripping machine for hanging the frame on the overhead wire by receiving the overhead wire from the side and gripping the overhead wire. The automatic connecting device for the branch line described in. 5. The frame is further controlled so as to stand up and down in association with the operation of gripping the overhead wire by the gripping machine, and at the time of standing up, a hook device for hanging the overhead wire and supporting the frame together with the gripping machine. It has, The automatic connection device of the branch line of Claim 4 characterized by the above-mentioned.