JPH0736663B2 - Wire stripping tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool which is used, for example, at the end of a manipulator and is hooked to a live overhead wire during construction for connecting a branch line to the overhead wire. The present invention relates to a tool for removing the coating and then polishing the surface thereof in order to ensure electrical connection with the branch line.

[0002]

2. Description of the Related Art Conventionally, as this type of tool, for example, an electric wire stripping / polishing tool described in Japanese Patent Application Laid-Open No. 2-246714 has been known. This tool is used by attaching it to the tip of the robot's arm. It takes in the electric wire in the first rotor held in the housing, rotates this rotor, and uses the cutter attached to this to rotate the electric wire. After stripping off the coating, the second rotor is inverted and the electric wire is polished by a polishing machine attached to the second rotor. When stripping the wire coating with the cutter, move the tool in the axial direction of the wire by a predetermined distance with the robot arm.
Make the cutter spiral around the wire.
Further, when the electric wire is polished by the grinder, this time, the tool is moved in the opposite direction for a predetermined distance to rotate the grinder spirally around the electric wire.

[0003]

In the above conventional wire stripping / polishing tool, it is necessary to rotate the cutter and the grinder in a spiral shape around the wire, so that the wire should be fixed at a fixed position with respect to the wire. It is impossible to peel and polish. The operation of moving the tool in the axial direction with respect to the electric wire must be performed by operating the robot arm. This operation is not only a hassle,
There was a problem that skill was required to adjust the moving speed.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and a housing which is attached to a frame and has a substantially cylindrical holding space which is partially open.
A drive gear that is rotatably attached to the housing so that at least a part of it is exposed in the hugging space, and a drive gear that is driven to rotate forward and backward by a motor; It is divided into two parts and is rotatably housed in the cylindrical holding space of the housing by the drive gear, and is rotated around the electric wire as the unidirectional rotation is performed, and the electric wire is stripped by the cutter. In a wire stripping machine having a substantially cylindrical skin stripping rotor capable of, the rotor is provided movably in the radial direction of the rotor between a position in contact with the outer circumference of the wire and a position away from it. Moreover, in order to contact the outer circumference of the electric wire, the polishing brush is urged toward the axial center of the rotor, and when the rotor is rotating forward, the brush is disengaged from the brush to move outward in the radial direction. And a brush engagement mechanism that engages with the brush when the rotor rotates in the reverse direction to prevent outward movement in the radial direction and makes contact with the electric wire. Configured.

[0005]

The wire stripping tool of the present invention is attached, for example, to the tip of a manipulator or other required working machine, and with the skin stripping rotor open, bring it to a predetermined position on the overhead wire and insert the wire into the rotor. To do. Then, while the motor is started to rotate the rotor in the housing, the motor is closed and the electric wire is held in the rotor. Further, the rotor is rotated a predetermined number of times, and the electric wire coating is stripped over a predetermined width by a cutter attached to the rotor. When the rotor has rotated a predetermined number of times and stripping of the coating is completed, the rotor automatically rotates in the opposite direction. By this reversal, the brush engagement mechanism operates to prevent the brush from moving outward in the radial direction and to contact the electric wire. In this state, the rotor is rotated a predetermined number of times to polish the electric wire. During this time, the tool may remain fixed to the wire.

[0006]

An embodiment of the present invention will be described with reference to the drawings. 1 is a front view of the wire stripping tool, FIG. 2 is a right side view of the same, and FIG.
4 is a front view of the skin removing rotor, FIG. 4 is a left side view of the same, and FIG. 5 is an open perspective view of the skin removing rotor.

The peeling tool 1 comprises a frame 2 which can be mounted on a manipulator, a housing 3 attached to the frame 2 and a peeling rotor 4 which is rotatably accommodated in the housing 3. It

As shown in FIGS. 1 and 2, the housing 3 has a substantially cylindrical shape and is provided with an insertion opening 5 for the peeling rotor 4 which is opened approximately 90 °, and the inside of the peeling rotor 4 is provided. A hugging space 6 is provided. The peripheral wall 3a of the hugging space 6 has an arcuate cross section. A drive shaft 7 is installed between the both side walls 3b and 3c of the housing 3 so as not to be exposed to the holding space 6. A gear 8 is fixed to the drive shaft 7, and a housing 3 is attached to the gear 8.
Output shaft 1 of the forward / reverse rotation motor 9 with reduction gear provided on the upper part of the
The gear 11 attached to 0 meshes with the gear 11, so that the gear 8 is driven to rotate in the forward and reverse directions by the motor 9.

As shown in FIG. 2, an auxiliary guide 13 whose upper end is pivotally attached to the housing 3 by a pin 12 is provided in a part of the insertion opening 5. The auxiliary guide 13 has an inner peripheral wall surface formed as a gear surface 14, and an upper surface of an upper end arm portion 15 is pressed by a lower surface of a rod 17 of an air cylinder 16 attached to the housing 3 to close the pin 12 as a fulcrum. It is configured to rotate.

As shown in FIGS. 3 to 5, the skinning rotor 4 has a substantially cylindrical shape, and has a space 4a through which the electric wire A penetrates at the center thereof, and the electric wire A is held in the space 4a. It is split in two along the axial direction so that
The sides are hinged so that they can be opened and closed. Therefore, the skin removing rotor 4 is composed of a main body 18 which is one half and a lid 19 which is the other half. Body 18
Gear pieces 21 and 22 forming a circular passive gear 20 are fixed to one end side of the two in a closed state. An opening 2 for discharging the peeled coating B of the electric wire A is provided between the sides of the main body 18 and the lid 19 on the mutual hinge side.
3 is formed.

As shown in FIGS. 4 and 5, a cutter 24 is fixed to the side of the lid 19 on the hinge side. The cutter 24 is in the shape of a rectangular flat plate, is provided with a blade 24a on one side, and is fixed at a predetermined angle with respect to the radial direction of the peeling rotor 4, and the peeling rotor 4 is When the blade 24a rotates forward (in the direction of the arrow in FIG. 4),
It is possible to dig into the coating B and to cut off the electric wire coating of a predetermined width. Further, standing blades 24b slightly standing upright from the surface are formed at both ends of the blade 24a. The upright blade 24b can smoothly cut both ends of the width of the electric wire coating B to be cut off.

In the main body 18, in a state where the electric wire A is held in the skinning rotor 4, the brush 25 for polishing is movably in a radial direction between a position where the electric wire A is in contact with the outer periphery of the electric wire A and a position where the electric wire A is separated from the outer periphery of the electric wire A. Is provided. That is, a spring 26 is provided on the mount 25a on the back surface of the brush 25 as shown in FIG. Therefore, the brush 25 is normally urged by the spring 26 toward the axial center of the peeling rotor 4 so as to contact the outer periphery of the electric wire A. Further, the body 18 is provided with a slider piece 27 for brush lock. The slider piece 27 has a friction surface 27a at one end thereof slightly protruding from the outer peripheral surface 18a of the main body 18, and the other end locking portion 27b can be locked to the protruding portion 25b of the mounting base 25a of the brush 25.
8 is inserted into the void 18b, and the slide pieces 27c on both sides are slidably fitted into the slide grooves 18c of the main body 18, and are provided slidably around the axis of the main body 18. Therefore, when the peeling rotor 4 rotates in the direction of the arrow shown in FIG. 4 to perform peeling, the friction surface 27a of the slider piece 27 causes the peripheral wall 3a of the housing 3 to move.
4 is automatically moved to the position shown by the alternate long and short dash line in FIG. 4 by the frictional force with the inner surface of the brush 25, and the protruding portion 25b of the mounting base 25a and the locking portion 27b of the slider piece 27 are disengaged, and the brush 25 is moved in the outer peripheral direction. The movement to is freed by compressing the spring 26, so that the peeling can be carried out without problems. Further, when the skin removing rotor 4 is reversely rotated in FIG. 4 (in the direction opposite to the arrow direction in FIG. 4), the slider piece 27 moves to the dotted line position in FIG. Since 27b can be engaged with the protruding portion 25b of the mount 25a, movement of the brush 25 in the outer peripheral direction is prevented, and as a result, the exposed surface of the wire A is brushed.

The lid 19 has a shaft 28 as shown in FIG.
Is provided with a rotary gear 29, and is configured to mesh with the gear surface 14 of the auxiliary guide 13 when the auxiliary guide 13 is turned to the closing side as shown by the solid line in FIG.

The forward / reverse rotation motor with reduction gear and the air cylinder described above are configured to be performed by a well-known program controller programmed to perform a predetermined operation in advance and a remote controller capable of operating the program remotely.

The wire stripping tool 1 of this embodiment is used, for example, by being attached to the tip of a manipulator installed in a bucket of an aerial work vehicle or attached to the tip of a work implement such as a hot stick. Main body 18 and lid 19 of the skinning rotor 4
With and opened, this is brought to a predetermined position of the overhead wire A, and the wire A is inserted into the rotor 4.

Then, when a start button (not shown) of the remote control switch is turned on, the air cylinder 16 of the housing 3 is actuated and the rod 17 pushes the upper end arm portion 15 of the auxiliary guide 13 to rotate it to the closing side. Move (solid line in Figure 2). Next, the peeling rotor 4 is rotated in the forward direction to cover the electric wire A with the coating B.
Is stripped off. That is, when the motor 9 rotates forward, the gear 11, the gear 8 and the passive gear 2 of the skinning rotor 4 are rotated.
0, the peeling rotor 4 is connected to the peripheral wall 3 of the housing 3.
2 rotates along the inner circumference of a in the direction of the arrow in FIG.
Bites into the coating B of the electric wire A and rotates around the electric wire A, so that the coating B is peeled off over a predetermined width. Further, the stripped off piece C has a substantially C-shaped cross section, and is attached so as to grip the outside of the lid body 19 due to its elasticity (FIG. 4). The peeling rotor 4 is normally rotated twice, and the position is detected by a proximity switch (not shown). Further, when the skin removing rotor 4 rotates in the normal direction, the friction surface 27a of the slider piece 27 for brush lock is automatically moved to the position shown by the one-dot chain line in FIG. 4 by the frictional force with the inner surface of the peripheral wall 3a of the housing 3. Since the engaging portion 27b of the slider piece 27 is disengaged from the projecting portion 25b of the mount 25a of the brush 25, the brush 25 can be moved in the outer peripheral direction by compressing the spring 26. The skin is removed without any trouble.

Next, when the peeling rotor 4 has rotated a predetermined number of times to complete the peeling of the coating B, the motor 9 automatically rotates in the reverse direction to rotate the peeling rotor 4 in the opposite direction. By this reversal, this time the slider piece 27 is automatically moved to the position of the dotted line in FIG. 4, and the locking portion 27b can be locked to the projecting portion 25b of the mounting base 25a. The movement of the wire A is blocked, and the exposed surface of the wire A is polished by the brush 25 during this time. In this case, the skin removing rotor 4 is rotated four times, and the position is detected by a proximity switch (not shown).

When the skinning and brushing are completed, the air cylinder 16 of the auxiliary guide 13 is turned off, the rod 17 returns to its original position, and the auxiliary guide 13 and the lid 19 of the skinning rotor 4 are opened by their own weight. Then, using the tool 1 such as a manipulator or a hot stick, the electric wire A
Then, the fragment C of the coating B, which is peeled off from the opening 23 of the skin peeling rotor 4, is removed by a driver or the like, and the work is completed.

[0019]

According to the present invention, a housing attached to a frame and having a substantially cylindrical hugging space that is partially open, and a rotatably mounted housing that is at least partially exposed to the hugging space. A drive gear that is attached and is driven to rotate forward and backward by a motor, and an electric wire that can be held inside is divided into two pieces that can be opened and closed along the axial direction, and inside the cylindrical holding space of the housing, An electric wire stripping machine that is rotatably accommodated by the drive gear and that has a substantially cylindrical skin-peeling rotor that can be wound around the electric wire as it rotates in one direction to strip the electric wire coating by a cutter. In the rotor,
A polishing brush, which is provided movably in the radial direction of the rotor between a position in contact with the outer circumference of the electric wire and a position away from the electric wire, and is urged toward the axial center of the rotor in order to contact the outer circumference of the electric wire, When the rotor rotates forward, it disengages from the brush to prevent movement in the radial direction, and when the rotor rotates in reverse, it engages the brush to prevent movement in the radial direction, and Since the electric wire peeling tool is configured with a brush engagement mechanism that makes contact with each other, the electric wire peeling tool peels the wire while it is fixed at a fixed position with respect to the electric wire, and the polishing operation is performed safely and reliably sequentially. There is an effect that it can be made small, and can be made compact and have a simple structure.

[Brief description of drawings]

FIG. 1 is a front view of a wire stripping tool.

FIG. 2 is a right side view of the wire stripping tool.

FIG. 3 is a front view of a skinning rotor.

FIG. 4 is a left side view of the skin removing rotor.

FIG. 5 is an open perspective view of the peeling rotor.

[Explanation of Codes] 1 wire stripping tool 2 frame 3 housing 4 stripping rotor 5 insertion opening 6 hugging space 7 drive shaft 8 gear 9 forward / reverse rotation motor with reduction gear 10 output shaft 11 gear 12 pin 13 auxiliary guide 14 Gear Surface 15 Upper Arm 16 Air Cylinder 17 Rod 18 Main Body 19 Lid 20 Passive Gear 21 Gear Piece 22 Gear Piece 23 Opening 24 Cutter 25 Brush 26 Spring 27 Slider Piece 28 Shaft 29 Rotating Gear A Electric Wire B Coated C Fragment

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 391011386 Japan Burnday Co., Ltd. 3-1, Honcho, Ekimae, Kawasaki-ku, Kawasaki-shi, Kanagawa (71) Applicant 000005186 Fujikura Co., Ltd. 1-5-1, Kiba, Koto-ku, Tokyo (71) ) Applicant 000001890 Sanwa Techchi Co., Ltd. 6-5-19 Minami-Shinagawa, Shinagawa-ku, Tokyo (71) Applicant 591265633 Kayo Denki Kogyo Co., Ltd. 2-6-1, Hamamatsucho, Minato-ku, Tokyo (72) Inventor Masaaki Ito 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Company (72) Inventor Noriyuki Kaihara 4-83-3 Shibaura, Minato-ku, Tokyo Kandenko Co., Ltd. (72) Inventor Yoshiaki Abe 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Inventor Tomio Obata 87 Nishi-Kuroda, Oyama, Tochigi Prefecture Saneisha Research Institute In-house (72) Inventor Akira Tanabe 3-26-33 Takanawa, Minato-ku, Tokyo Japan Burnday Co., Ltd. (72) In-house Koichi Machida 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Line Co., Ltd. (72) Inventor, Koji Kasai, 810, Nakatate, Tamabo-machi, Nakakoma-gun, Yamanashi Sanwa Tech Co., Ltd. Kofu factory (72) Inventor, Kazumi Wakamatsu, 1-8-1, Daisaku, Sakura City, Chiba Kayo Denki Kogyo Co., Ltd. Tokoro Sakura Factory (56) References JP-A-52-111684 (JP, A) JP-A-56-141708 (JP, A) JP-A-2-246714 (JP, A) Actual development 63-187517 (JP , U) Actual flat 4-2619 (JP, U) Actual flat 4-61409 (JP, U)

Claims (1)

[Claims] 1. A housing which is attached to a frame and has a substantially cylindrical hugging space which is partially opened, and a housing which is rotatably attached to the housing so that at least a part of the hugging space is exposed, and is driven by a motor. A drive gear that rotates in the forward and reverse directions and a drive gear that can be opened and closed along the axial direction so that the electric wire can be held inside and can be rotated by the drive gear in the cylindrical holding space of the housing. A wire stripping machine that is housed as possible and that has a substantially cylindrical skin stripping rotor that can be stripped around a wire by a cutter when it rotates in one direction, and a rotor for stripping the wire. Is provided so as to be movable in the radial direction of the rotor between a position where it contacts the outer circumference of the wire and a position where it separates from it, and it is urged toward the axial center of the rotor to contact the outer circumference of the wire. And the polishing brush that has been removed, and does not prevent the brush from being disengaged from the brush when the rotor rotates forward, and does not prevent the brush from moving outward in the radial direction. An electric wire stripping tool, comprising: a brush engaging mechanism that prevents movement and makes contact with an electric wire.