CN114589756A

CN114589756A - Efficient optical cable cutting mechanism

Info

Publication number: CN114589756A
Application number: CN202210261262.8A
Authority: CN
Inventors: 胡东华; 陆兵; 张彪
Original assignee: Nantong Tongneng Communication Technology Co ltd
Current assignee: Ningguo Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-06-07
Anticipated expiration: 2042-03-17
Also published as: CN114589756B

Abstract

The invention relates to the field of cutting equipment, in particular to an efficient optical cable cutting mechanism. The invention provides an optical cable cutting device, which comprises a clamping part, a cutting part, a fixing part and a driving part, wherein the clamping part is arranged on the clamping part; when the driving part drives the cutting knife to rotate 90 degrees, the driving part drives the cutting knife to continuously move towards the direction of the fixing part so that the plug pin is clamped in the horizontal groove, the cutting knife struts the outer skin of the optical cable, and the driving part continuously drives the cutting knife to move towards the direction of the fixing part so that the cutting edge can cut off the optical cable; or the driving part drives the cutting knife to rotate 180 degrees, the cutting knife drives the fixing frame to rotate 180 degrees, so that the optical cables at two ends of the fixing frame are wound into a U shape, the driving part continuously drives the cutting knife to move towards the direction of the fixing part so that the cutting edge can cut off the optical cables, and the head parts of two cut-off optical cables are in the U shape. The clamping part can clamp the optical cable and clamp the positioning cutting part at the same time. Can the fixed part cooperation peel, decide and rotate the deformation with the optical cable respectively through cutting out the portion to adapt to different demands.

Description

Efficient optical cable cutting mechanism

Technical Field

The invention relates to the field of cutting equipment, in particular to an efficient optical cable cutting mechanism.

Background

The optical cable is an electric energy or signal transmission device, and during construction and application of the optical cable, the head of the optical cable is often required to be bent to be matched with the shape of a specific fixed part of electric power equipment, so that the optical cable is firmly connected. Sometimes, the requirement for such a shape is complex and the requirement for shape accuracy is high. Accordingly, there is a need for a power-controlled forming apparatus for quickly and accurately cutting an optical cable and for addressing various requirements, such as bending an end of the optical cable.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the technical problems in the prior art, the invention provides an optical cable cutting device, which comprises a clamping part and a cutting part, wherein the clamping part comprises a bracket and U-shaped clamps fixed on two sides of the bracket, and the U-shaped clamps are suitable for clamping optical cables; the cutting part comprises a frame body fixed at one end of the U-shaped clamp far away from the support, a cutting knife movably arranged on the frame body and a fixing frame rotatably arranged on the cutting knife, two inserting pins are arranged on the cutting knife and are respectively positioned at two sides of the fixing frame, a horizontal groove perpendicular to the length direction of the inserting pins is formed in the fixing frame, and the cutting edge of the cutting knife is parallel to the length direction of the horizontal groove; the fixing part is elastically arranged on the bracket, and the fixing part is matched with the cutting part and is suitable for cutting the optical cable; a driving part, wherein the driving part is suitable for driving the cutting knife to move; the driving part drives the cutting knife to move towards the direction of the fixing part, the fixing frame is matched with the fixing part to clamp the optical cable, and the cutting knife can peel off the outer skin of the optical cable; when the driving part drives the cutting knife to rotate by 90 degrees, the driving part drives the cutting knife to continuously move towards the fixing part so that the plug pin is clamped in the horizontal groove, the cutting knife props open the outer skin of the optical cable, and the driving part continuously drives the cutting knife to move towards the fixing part so that the cutting edge can cut off the optical cable; or the driving part drives the cutting knife to rotate 180 degrees, the cutting knife drives the fixing frame to rotate 180 degrees, so that the optical cables at the two ends of the fixing frame are wound into a U shape, the driving part continuously drives the cutting knife to move towards the direction of the fixing part, so that the optical cables can be cut off by the cutting edge, and the head parts of the two cut optical cables are in the U shape.

Furthermore, the cutting knife comprises a main shaft and a cutting edge arranged at one end of the main shaft, the fixing frame is in a V shape, and two ends of the fixing frame are provided with clamping blocks, wherein the two clamping blocks are respectively positioned at two ends of the cutting edge; one end of the main shaft, which is far away from the cutting edge, penetrates through the frame body and is in transmission connection with the driving part.

Furthermore, the frame body is clamped by the open end of the U-shaped clamp through a bolt, an installation groove is formed in the frame body, and the shape and the size of the installation groove are matched with those of the fixing frame.

Further, the driving part comprises a pushing cylinder and a rotating cylinder, wherein a piston of the rotating cylinder is fixedly connected with the main shaft; the pushing cylinder is fixed on the frame body, and a piston of the pushing cylinder is fixedly connected with the rotating cylinder.

Further, the U-shaped clamp comprises an upper clamping plate and a lower clamping plate, semicircular holes are formed in the upper clamping plate and the lower clamping plate, and a clamping cavity is formed between the two semicircular holes to be suitable for clamping optical cables of different sizes.

Further, the fixing part comprises an H-shaped fixing plate, a step shaft connected with the fixing plate and a spring fixed on the fixing seat, wherein the other end of the spring abuts against a step surface of the step shaft; the two ends of the fixing plate are clamped with corresponding U-shaped clamps; the fixing plate is positioned at one end of the clamping cavity, which is far away from the cutting knife.

Furthermore, a through hole is formed in the bracket, a sleeve is fixed on the fixed seat, and one end of the step shaft with a larger size penetrates through the through hole to be connected with the fixed plate; one end of the step shaft with smaller size is arranged in the sleeve in a sliding mode; one end of the spring is fixed on the sleeve.

Furthermore, a limiting seat is further arranged between the fixing seat and the support, a limiting hole matched with the step shaft is formed in the limiting seat, the step shaft is arranged in the limiting hole in a sliding mode, a limiting pin is fixed on the step shaft and can abut against the limiting seat or the support to limit the movement stroke of the fixing plate.

Furthermore, a limiting cylinder is fixed in the limiting hole, a limiting groove is formed in one end, close to the limiting pin, of the limiting cylinder, and the step shaft is arranged in the limiting cylinder in a sliding mode; the limiting pin is matched with the limiting groove to limit the step shaft to rotate.

Furthermore, a waist-shaped hole is formed in the bracket, and a sliding block is arranged at one end, away from the opening, of the U-shaped clamp, wherein the sliding block is arranged in the waist-shaped hole in a sliding manner; the size of the U-shaped clamp is larger than that of the waist-shaped hole; and a limiting plate is fixed on the sliding block, so that the sliding block can only slide in the waist-shaped hole.

Has the advantages that: the invention provides an optical cable cutting device, which comprises a clamping part, a cutting part, a fixing part and a driving part, wherein the clamping part is arranged on the clamping part; when the driving part drives the cutting knife to rotate 90 degrees, the driving part drives the cutting knife to continuously move towards the direction of the fixing part so that the plug pin is clamped in the horizontal groove, the cutting knife struts the outer skin of the optical cable, and the driving part continuously drives the cutting knife to move towards the direction of the fixing part so that the cutting edge can cut off the optical cable; or the driving part drives the cutting knife to rotate 180 degrees, the cutting knife drives the fixing frame to rotate 180 degrees, so that the optical cables at two ends of the fixing frame are wound into a U shape, the driving part continuously drives the cutting knife to move towards the direction of the fixing part so that the cutting edge can cut off the optical cables, and the head parts of two cut-off optical cables are in the U shape. The clamping part can clamp the optical cable and clamp the positioning cutting part at the same time. Can the fixed part cooperation peel, decide and rotate the deformation with the optical cable respectively through cutting out the portion to adapt to different demands. The invention has simple structure and high automation degree, and can adapt to optical cables with different sizes and cut the optical cables into linear or U-shaped optical cables to adapt to different requirements.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a clevis of the present invention;

FIG. 3 is a first schematic view of a cutting portion structure according to the present invention;

FIG. 4 is a second schematic view of a cutting portion structure according to the present invention;

FIG. 5 is a schematic view of a cutting blade of the present invention in a peeling state;

FIG. 6 is a schematic view of the cutting knife for cutting a linear optical cable according to the present invention;

FIG. 7 is a schematic view of the cutting blade cutting a U-shaped optical cable according to the present invention;

in the figure:

100. the clamping device comprises a clamping part, 110, a bracket, 111, a kidney-shaped hole, 112, a through hole, 120, a U-shaped clamp, 121, a bolt, 122, an upper clamping plate, 123, a lower clamping plate, 124, a semicircular hole, 125, a clamping cavity, 126, a limiting plate, 127 and a sliding block;

200. a cutting part 210, a frame body 211, a mounting groove 220, a cutting knife 221, a plug pin 222, a main shaft 223, a cutting edge 230, a fixing frame 231, a horizontal groove 232 and a clamping block;

300. the device comprises a fixing part, 310, a fixing plate, 320, a step shaft, 330, a spring, 340, a fixing seat, 341, a sleeve, 350, a limiting seat, 351, a limiting hole, 352, a limiting pin, 353, a limiting cylinder, 354 and a limiting groove;

400. a driving part 410, a rotating cylinder 420 and a pushing cylinder;

500. an optical cable.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.

Example one

As shown in fig. 1 to 7, an optical cable cutting apparatus includes: a clamping part 100, a cutting part 200, a fixing part 300 and a driving part 400. Wherein the clamping part 100 is suitable for clamping the cutting part 200 and horizontally fixing the cutting part 200; the cutting part 200 is suitable for horizontal sliding and axial rotation so as to realize peeling, spreading and cutting operations of the workpiece; the fixing portion 300 is adapted to support the clamping portion 100; the driving part 400 is adapted to drive the cutting part 200 to approach or depart from the fixing part 300 and control the cutting part 200 to rotate around the shaft. With respect to the above components, a detailed description is given below.

Clamping part

The grip part 100 is provided between the fixing part 300 and the cutting part 200, the gripping part is slidably coupled with the fixing plate 310, and the grip part 100 can grip the cutting part 200 from both sides, thereby horizontally positioning the cutting part 200. Further, the optical cable 500 can pass through the clamping portion 100 in the horizontal direction and be clamped and fixed by the clamping portion 100.

The structure of the clamping portion 100 will be described in detail below, and the clamping portion 100 includes: a bracket 110 and a clevis 120 fixed to both sides of the bracket 110. The bracket 110 is fixed on a horizontal plane, the length direction of the bracket 110 is parallel to the horizontal plane, waist-shaped holes 111 are respectively formed in two sides of the bracket 110 inwards along the length direction, the waist-shaped holes 111 are parallel to the horizontal plane, and the waist-shaped holes 111 penetrate through the front end face and the rear end face of the bracket 110. A through hole 112 is formed between the two waist-shaped holes 111, and the through hole 112 is not communicated with the waist-shaped holes 111 at the two sides. Two U-shaped clamps 120 are slidably arranged in the waist-shaped holes 111, one U-shaped clamp 120 is correspondingly slidably arranged in one side waist-shaped hole 111 of the bracket 110, the rear end of the U-shaped clamp 120 is suitable for clamping the optical cable 500, and the front end of the U-shaped clamp 120 is suitable for clamping the cutting part 200. Specifically, the clevis 120 includes an upper plate 122 and a lower plate 123, the upper plate 122 and the lower plate 123 of the clevis 120 have a gap, one end of the upper plate 122 and one end of the lower plate 123 are integrally formed, the other end of the upper plate is open, the clevis 120 is open toward the cutting portion 200, semicircular holes 124 are respectively formed in the upper plate 122 and the lower plate 123, the semicircular holes 124 are respectively arranged at one end far away from the open end, the semicircular holes are oppositely arranged, and a clamping cavity 125 is formed between the two semicircular holes 124. When the upper clamping plate 122 and the lower clamping plate 123 are separated from each other, the clamping cavity 125 can be enlarged; when the upper and

lower clamping plates

122 and 123 are pressed toward each other, the clamping chamber 125 can be reduced. In this way, the clamping chamber 125 can be adapted to different sizes of optical cables 500. After the optical cable 500 is clamped, the cut-out portion 200 is inserted between the upper plate 122 and the lower plate 123, and the upper plate 122 has a bolt 121 at an end thereof, the bolt 121 can pass through a gap between the upper plate 122 and the lower plate 123 downward, and the lower plate 123 is inserted, and the bolt 121 can adjust the gap between the upper plate 122 and the lower plate 123, thereby clamping or loosening the cut-out portion 200. A sliding block 127 is fixedly connected to an end of the U-shaped clip 120 away from the opening, the sliding block 127 is matched with the kidney-shaped hole 111, the sliding block 127 is slidably disposed in the kidney-shaped hole 111, and a limiting plate 126 is fixedly connected to an end of the sliding block 127 away from the U-shaped clip 120. The width of the U-shaped clip 120 is the same as the height and the width of the waist-shaped hole 111, the size of the U-shaped clip 120 is larger than the size of the waist-shaped hole 111, the diameter of the limiting plate 126 is also larger than the height of the waist-shaped hole 111, the sliding block 127 is fixed in the waist-shaped hole 111 by the U-shaped clip 120 and the limiting plate 126 from two sides, the sliding block 127 is prevented from driving the U-shaped clip 120 to slide from the waist-shaped hole 111, and the accuracy of the U-shaped clip 120 in positioning the cutting part 200 is improved.

Fixing part

The fixing part 300 is arranged on one side of the bracket 110 far away from the cutting part 200, the fixing part 300 is elastically arranged on the bracket 110, and the fixing part 300 is matched with the cutting part 200 and is suitable for cutting the optical cable 500. Specifically, one end of the fixing portion 300 is disposed at the rear of the clamping cavity 125, and when the cutting portion 200 moves to the side close to the fixing portion 300, the cutting portion 200 can push the optical cable 500 to abut against the fixing portion 300, and at this time, the fixing portion 300 can function as a chopping block, so that the cutting portion 200 can cut and cut the optical cable 500 conveniently.

The structure of the fixing portion 300 will be described in detail below, and the fixing portion 300 includes: an H-shaped fixing plate 310, a stepped shaft 320 connected to the fixing plate 310, and a spring 330 fixed to a fixing base 340. The fixing plate 310 is disposed between the two clevises 120 of the same bracket 110, the fixing plate 310 is disposed along the horizontal direction, and the openings at both ends of the fixing plate 310 clamp the corresponding clevises 120, and the fixing plate 310 can prevent the clevises 120 from rotating axially, so that the clamping cavities 125 of the two clevises 120 are disposed in the horizontal direction, and the stability of the clevises 120 in positioning the cutting part 200 is improved. The step shaft 320 has a step, and the larger end of the step shaft 320 can pass through the through hole 112 and is fixedly connected with the fixing plate 310. The lower end of the fixing seat 340 is fixedly connected with the horizontal plane, the fixing seat 340 is arranged at one end of the step shaft 320 far away from the fixing plate 310, a sleeve 341 is fixed on the fixing seat 340, the smaller end of the step shaft 320 of the sleeve 341 is matched, and the smaller end of the step shaft 320 is slidably arranged in the sleeve 341. One end of the spring 330 is fixed to the sleeve 341, and the other end of the spring 330 abuts against the step surface of the step shaft 320. In this way, the fixing plate 310 can be moved closer to or farther from the clamping cavity 125 in the horizontal direction. When optical cables 500 with different sizes are placed between the clamping cavities 125, the optical cable 500 can push the fixing plate 310 to move backwards and compress the spring 330, or the spring 330 pushes the fixing plate 310 to abut against the optical cable 500, so that the fixing plate 310 can automatically adjust the distance to adapt to the optical cables 500 with different sizes.

In order to limit the backward movement stroke of the fixing plate 310, a limiting seat 350 is further disposed between the fixing seat 340 and the bracket 110, the limiting seat 350 is fixedly connected to the horizontal plane, a limiting hole 351 adapted to the step shaft 320 is formed in the limiting seat 350, and the step shaft 320 is slidably disposed in the limiting hole 351. The step shaft 320 is fixed with a limit pin 352, and the limit pin 352 can abut against the limit seat 350 or the bracket 110 to limit the moving stroke of the fixing plate 310. In this way, it is avoided that the fixing plate 310 moves backward by an excessively large distance beyond the maximum stroke of the horizontal movement of the cutting portion 200, so that the cutting portion 200 cannot normally cut the optical cable 500.

In order to prevent the step shaft 320 from axially rotating, a limiting cylinder 353 is fixed in the limiting hole 351, one end of the limiting cylinder 353 close to the limiting pin 352 is provided with a limiting groove 354, and the step shaft 320 is slidably arranged in the limiting cylinder 353; the stopper pin 352 is fitted with the stopper groove 354 to restrict the rotation of the step shaft 320. In this way, the step shaft 320 is prevented from rotating the fixing plate 310, so as to prevent the clevis 120 from rotating relatively to break the end of the fixing plate 310.

Cutting part

The both sides of the cutting portion 200 are fixed on the clevis 120, and the cutting portion 200 is disposed opposite to the fixing plate 310, and the cutting portion 200 can be close to or far from the fixing plate 310. Specifically, when the cut-out portion 200 is close to the fixing plate 310, the cut-out portion 200 can peel, stretch, and cut the optical cable 500 placed in the clamping chamber 125.

The following describes the structure of the cutting section 200 in detail, and the cutting section 200 includes: a frame body 210 fixed at one end of the U-shaped clamp 120 far away from the bracket 110, a cutting knife 220 movably arranged on the frame body 210, and a fixing frame 230 rotatably arranged on the cutting knife 220. The frame body 210 is horizontally disposed, and both ends of the frame body 210 can be inserted into the U-shaped clips 120, and the cutting part 200 is clamped and fixed on the U-shaped clips 120 by the frame body 210. One end of the frame body 210 close to the fixing plate 310 is provided with a mounting groove 211, the shape and size of the mounting groove 211 are matched with the shape and size of the fixing frame 230, and the fixing frame 230 is slidably disposed in the mounting groove 211. The cutting blade 220 is perpendicular to the fixing plate 310, the cutting blade 220 includes a main shaft 222 and a cutting edge 223 disposed at one end of the main shaft 222, and the cutting blade 220 can cut the optical cable 500 through the cutting edge 223. The fixing frame 230 is in a V shape, two ends of the fixing frame 230 are provided with two blocks 232, and the two blocks 232 are respectively located at two ends of the cutting edge 223. One end of the main shaft 222 far from the cutting edge 223 penetrates through the frame body 210 to be in transmission connection with the driving part 400. The fixing frame 230 contacts the optical cable 500 through two clamping blocks 232, the two clamping blocks 232 are made of rubber materials, so that the optical cable 500 is prevented from being crushed due to the fact that the clamping blocks 232 are in hard contact with the optical cable 500, the clamping blocks 232 can be replaced by clamping grooves, and the effect is the same. The cutting knife 220 is provided with two pins 221, the two pins 221 are respectively located at two sides of the fixing frame 230, and the fixing frame 230 is provided with a horizontal groove 231 vertical to the length direction of the pins 221.

Driving part

The driving part 400 is adapted to drive the cutting blade 220 to move and rotate. The driving part 400 comprises a pushing cylinder 420 and a rotating cylinder 410, wherein a piston of the rotating cylinder 410 is fixedly connected with the main shaft 222; the pushing cylinder 420 is fixed on the frame body 210, and a piston of the pushing cylinder 420 is fixedly connected with the rotating cylinder 410.

The working process of the equipment is as follows: the upper clamping plate 122 and the lower clamping plate 123 are opened towards two sides, and the optical cable 500 sequentially passes through the two clamping cavities 125 to be placed; the upper clamping plate 122 and the lower clamping plate 123 are loosened, the two sides of the rack body 210 are inserted into the gap between the upper clamping plate 122 and the lower clamping plate 123, and the bolts 121 are tightened until the rack body 210 is clamped and fixed; the pushing cylinder 420 drives the cutting knife 220 to move towards the direction of the fixing part 300, the fixing frame 230 pushes the optical cable 500 to abut against the fixing plate 310 through the fixture blocks 232 on the two sides, so that the optical cable 500 is clamped, the cutting knife 220 cuts an opening in the sheath of the optical cable 500 through the cutting edge 223, and the sheath of the optical cable 500 is peeled; when the linear optical cable 500 is needed, the rotary cylinder 410 drives the cutting knife 220 to rotate 90 degrees, so that the plug pin 221 is flush with the horizontal groove 231, the cutting knife 220 props up the outer skin of the optical cable 500 in the rotating process of the cutting knife 220, the pushing cylinder 420 drives the cutting knife 220 to continuously move towards the direction of the fixing plate 310, so that the plug pin 221 is clamped into the horizontal groove 231, the cutting knife 220 and the fixing frame 230 relatively move, and the cutting edge 223 downwards cuts off the optical cable 500; when the U-shaped optical cable 500 is needed, the rotary cylinder 410 drives the cutting knife 220 to rotate 180 degrees, the cutting knife 220 drives the fixing frame 230 to rotate 180 degrees, so that the optical cables 500 at the two ends of the fixing frame 230 are wound into a U shape, the pushing cylinder 420 continues to drive the cutting knife 220 to move towards the fixing part 300 direction, so that the cutting edge 223 can cut off the optical cables 500, the heads of the two cut-off optical cables 500 are U-shaped, and the consistency of cutting the optical cables 500 with the same size every time is guaranteed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An optical cable cutting device is characterized by comprising,

a clamping portion (100), the clamping portion (100) comprising a bracket (110) and a U-shaped clip (120) fixed on two sides of the bracket (110), the U-shaped clip (120) being suitable for clamping an optical cable (500);

the cutting part (200) comprises a frame body (210) fixed at one end, far away from the support (110), of the U-shaped clamp (120), a cutting knife (220) movably arranged on the frame body (210) and a fixing frame (230) rotatably arranged on the cutting knife (220), two inserting pins (221) are arranged on the cutting knife (220), the two inserting pins (221) are respectively positioned at two sides of the fixing frame (230), a horizontal groove (231) perpendicular to the length direction of the inserting pins (221) is formed in the fixing frame (230), and a cutting edge (223) of the cutting knife (220) is parallel to the length direction of the horizontal groove (231);

the fixing part (300) is elastically arranged on the support (110), and the fixing part (300) is matched with the cutting part (200) and is suitable for cutting the optical cable (500);

a driving part (400), wherein the driving part (400) is suitable for driving the cutting knife (220) to move; wherein the content of the first and second substances,

the driving part (400) drives the cutting knife (220) to move towards the direction of the fixing part (300), the fixing frame (230) is matched with the fixing part (300) to clamp the optical cable (500), and the cutting knife (220) can peel off the outer skin of the optical cable (500);

when the driving part (400) drives the cutting knife (220) to rotate 90 degrees, the driving part (400) drives the cutting knife (220) to continuously move towards the direction of the fixing part (300) so as to enable the plug pin (221) to be clamped in the horizontal groove (231),

the cutting blade (220) is used for spreading the outer skin of the optical cable (500), and the driving part (400) is used for continuously driving the cutting blade (220) to move towards the direction of the fixing part (300) so that the cutting edge (223) can cut off the optical cable (500); alternatively, the first and second electrodes may be,

the optical cable cutting device is characterized in that the driving part (400) drives the cutting knife (220) to rotate 180 degrees, the cutting knife (220) drives the fixing frame (230) to rotate 180 degrees, so that the optical cables (500) at the two ends of the fixing frame (230) are wound into a U shape, the driving part (400) continuously drives the cutting knife (220) to move towards the fixing part (300) to enable the cutting edge (223) to cut off the optical cables (500), and the head parts of the cut-off two optical cables (500) are in the U shape.

2. The optical cable cutting apparatus as claimed in claim 1,

the cutting knife (220) comprises a main shaft (222) and a cutting edge (223) arranged at one end of the main shaft (222), the fixing frame (230) is V-shaped, two ends of the fixing frame (230) are provided with clamping blocks (232), wherein,

the two clamping blocks (232) are respectively positioned at two ends of the cutting edge (223);

one end of the main shaft (222) far away from the cutting edge (223) penetrates through the frame body (210) to be in transmission connection with the driving part (400).

3. An optical cable cutting apparatus as claimed in claim 2,

the open end of the U-shaped clamp (120) clamps the frame body (210) through a bolt (121), a mounting groove (211) is arranged on the frame body (210), wherein,

the shape and the size of the mounting groove (211) are matched with those of the fixing frame (230).

4. An optical cable cutting apparatus as claimed in claim 2,

the driving part (400) comprises a pushing cylinder (420) and a rotating cylinder (410), wherein,

the piston of the rotary cylinder (410) is fixedly connected with the main shaft (222);

the pushing cylinder (420) is fixed on the frame body (210), and a piston of the pushing cylinder (420) is fixedly connected with the rotating cylinder (410).

5. The optical cable cutting apparatus as claimed in claim 1,

the U-shaped clamp (120) comprises an upper clamping plate (122) and a lower clamping plate (123), both the upper clamping plate (122) and the lower clamping plate (123) are provided with semicircular holes (124), wherein,

a clamping cavity (125) is formed between the two semicircular holes (124) so as to be suitable for clamping optical cables (500) with different sizes.

6. An optical cable cutting apparatus as claimed in claim 5,

the fixing part (300) comprises an H-shaped fixing plate (310), a step shaft (320) connected with the fixing plate (310) and a spring (330) fixed on a fixing seat (340), wherein,

the other end of the spring (330) props against the step surface of the step shaft (320);

both ends of the fixing plate (310) are clamped with corresponding U-shaped clamps (120);

the fixing plate (310) is positioned at one end of the clamping cavity (125) far away from the cutting knife (220).

7. The optical cable cutting apparatus according to claim 6,

the bracket (110) is provided with a through hole (112), the fixed seat (340) is fixed with a sleeve (341), wherein,

one end of the step shaft (320) with larger size passes through the through hole (112) to be connected with the fixing plate (310);

one end of the step shaft (320) with smaller size is arranged in the sleeve (341) in a sliding mode;

one end of the spring (330) is fixed on the sleeve (341).

8. The optical cable cutting apparatus according to claim 7,

a limiting seat (350) is further arranged between the fixed seat (340) and the bracket (110), a limiting hole (351) matched with the step shaft (320) is formed in the limiting seat (350), the step shaft (320) is arranged in the limiting hole (351) in a sliding mode,

a limiting pin (352) is fixed on the step shaft (320), and the limiting pin (352) can abut against the limiting seat (350) or the bracket (110) to limit the movement stroke of the fixing plate (310).

9. The optical cable cutting apparatus according to claim 8,

a limiting cylinder (353) is fixed in the limiting hole (351), a limiting groove (354) is arranged at one end of the limiting cylinder (353) close to the limiting pin (352), wherein,

the step shaft (320) is arranged in the limiting cylinder (353) in a sliding mode;

the limit pin (352) is matched with the limit groove (354) to limit the step shaft (320) to rotate.

10. The optical cable cutting apparatus as claimed in claim 1,

the bracket (110) is provided with a waist-shaped hole (111), one end of the U-shaped clip (120) far away from the opening is provided with a sliding block (127), wherein,

the sliding block (127) is arranged in the waist-shaped hole (111) in a sliding manner;

the size of the U-shaped clip (120) is larger than that of the waist-shaped hole (111);

a limiting plate (126) is fixed on the sliding block (127) so that the sliding block (127) can only slide in the waist-shaped hole (111).